MC74AC161, MC74ACT161, MC74AC163, MC74ACT163. Synchronous Presettable Binary Counter

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MC74AC161, MC74ACT161, MC74AC163, MC74ACT163 Synchronous Presettable Binary Counter The MC74AC161/74ACT161 and MC74AC163/74ACT163 are high speed synchronous modulo 16 binary counters. They are synchronously presettable for application in programmable dividers and have two types of Count Enable inputs plus a Terminal Count output for versatility in forming synchronous multistage counters. The MC74AC161/74ACT161 has an asynchronous Master Reset input that overrides all other inputs and forces the outputs LOW. The MC74AC163/74ACT163 has a Synchronous Reset input that overrides counting and parallel loading and allows the outputs to be simultaneously reset on the rising edge of the clock. 16 1 http://oemi.com DIP 16 N SUFFIX CASE 648 Synchronous Counting and Loading High Speed Synchronous Expaion Typical Count Rate of 125 MHz Outputs Source/Sink 24 ma ACT161 and ACT163 Have TTL Compatible Inputs These devices are available in Pb free package(s). Specificatio herein apply to both standard and Pb free devices. Please see our website at www.oemi.com for specific Pb free orderable part numbers, or contact your local ON Semiconductor sales office or representative. 16 16 1 1 SO 16 D SUFFIX CASE 751B EIAJ 16 M SUFFIX CASE 966 V CC TC Q 0 Q 1 Q 2 Q 3 CET PE 16 15 14 13 12 11 10 9 ORDERING INFORMATION See detailed ordering and shipping information in the package dimeio section on page 12 of this data sheet. 1 2 3 4 5 6 7 *R CP P 0 P 1 P 2 P 3 CEP GND Figure 1. Pinout: 16 Lead Packages Conductors (Top View) 8 DEVICE MARKING INFORMATION See general marking information in the device marking section on page 11 of this data sheet. PIN ASSIGNMENT PIN CEP CET CP MR SR P 0 P 3 PE Q 0 Q 3 TC FUNCTION Count Enable Parallel Input Count Enable Trickle Input Clock Pulse Input ( 161) Asynchronous Master Reset Input ( 163) Synchronous Reset Input Parallel Data Inputs Parallel Enable Input Flip Flop Outputs Terminal Count Output Semiconductor Components Industries, LLC, 2006 March, 2006 Rev. 7 1 Publication Order Number: MC74AC161/D

PE P 0 P 1 P 2 P 3 CEP CET TC CP *R Q 0 Q 1 Q 2 Q 3 *MR for 161 *SR for 163 Figure 2. Logic FUNCTIONAL DESCRIPTION The MC74AC161/ACT161 and MC74AC163/ACT163 count modulo 16 binary sequence. From state 15 (HHHH) they increment to state 0 (LLLL). The clock inputs of all flip flops are driven in parallel through a clock buffer. Thus all changes of the Q outputs (except due to Master Reset of the 161) occur as a result of, and synchronous with, the LOW to HIGH traition of the CP input signal. The circuits have four fundamental modes of operation, in order of precedence: asynchronous reset ( 161), synchronous reset ( 163), parallel load, count up and hold. Five control inputs Master Reset (MR, 161), Synchronous Reset (SR, 163), Parallel Enable (PE), Count Enable Parallel (CEP) and Count Enable Trickle (CET) determine the mode of operation, as shown in the Mode Select Table. A LOW signal on MR overrides all other inputs and asynchronously forces all outputs LOW. A LOW signal on SR overrides counting and parallel loading and allows all outputs to go LOW on the next rising edge of CP. A LOW signal on PE overrides counting and allows information on the Parallel Data (P n ) inputs to be loaded into the flip flops on the next rising edge of CP. With PE and MR ( 161) or SR ( 163) HIGH, CEP and CET permit counting when both are HIGH. Conversely, a LOW signal on either CEP or CET inhibits counting. The MC74AC161/ACT161 and MC74AC163/ACT163 use D type edge triggered flip flops and changing the SR, PE, CEP and CET inputs when the CP is in either state does not cause errors, provided that the recommended setup and hold times, with respect to the rising edge of CP, are observed. The Terminal Count (TC) output is HIGH when CET is HIGH and counter is in state 15. To implement synchronous multistage counters, the TC outputs can be used with the CEP and CET inputs in two different ways. Please refer to the MC74AC568 data sheet. The TC output is subject to decoding spikes due to internal race conditio and is therefore not recommended for use as a clock or asynchronous reset for flip flops, counters or registers. Logic Equatio: Count Enable = CEP CET PE TC = Q 0 Q 1 Q 2 Q 3 CET MODE SELECT TABLE *SR PE CET CEP Action on the Rising Clock Edge ( ) L X X X Reset (Clear) H L X X Load (P n Q n ) H H H H Count (Increment) H H L X No Change (Hold) H H X L No Change (Hold) *For 163 only H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial 0 1 2 3 4 15 5 14 13 12 11 10 9 6 7 8 Figure 3. State Diagram http://oemi.com 2

P 0 P 1 P 2 P 3 PE 161 163 CEP CET 163 ONLY TC CP CP 161 ONLY CP D CP D C D Q Q Q 0 Q0 DETAIL A DETAIL A DETAIL A DETAIL A MR 161 SR 163 Q 0 Q 1 Q 2 Q 3 NOTE: This diagram is provided only for the understanding of logic operatio and should not be used to estimate propagation delays. Figure 4. Logic Diagram MAXIMUM RATINGS* Value V CC DC Supply Voltage (Referenced to GND) 0.5 to +7.0 V V IN DC Input Voltage (Referenced to GND) 0.5 to V CC +0.5 V V OUT DC Output Voltage (Referenced to GND) 0.5 to V CC +0.5 V I IN DC Input Current, per Pin ±20 ma I OUT DC Output Sink/Source Current, per Pin ±50 ma I CC DC V CC or GND Current per Output Pin ±50 ma T stg Storage Temperature 65 to +150 C *Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditio. http://oemi.com 3

RECOMMENDED OPERATING CONDITIONS Min Typ Max V CC Supply Voltage AC 2.0 5.0 6.0 ACT 4.5 5.0 5.5 V IN, V OUT DC Input Voltage, Output Voltage (Ref. to GND) 0 V CC V t r, t f Input Rise and Fall Time (Note 1) AC Devices except Schmitt Inputs t r, t f Input Rise and Fall Time (Note 2) ACT Devices except Schmitt Inputs V CC @ 3.0 V 150 V CC @ 4.5 V 40 /V V CC @ 5.5 V 25 V CC @ 4.5 V 10 V CC @ 5.5 V 8.0 T J Junction Temperature (PDIP) 140 C T A Operating Ambient Temperature Range 40 25 85 C I OH Output Current High 24 ma I OL Output Current Low 24 ma 1. V IN from 30% to 70% V CC ; see individual Data Sheets for devices that differ from the typical input rise and fall times. 2. V IN from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times. DC CHARACTERISTICS V IH V IL V OH Minimum High Level Input Voltage Maximum Low Level Input Voltage Minimum High Level Output Voltage V CC 74AC Typ 74AC T A = 40 C to +85 C Guaranteed Limits V /V Conditio 3.0 1.5 2.1 2.1 V OUT = 0.1 V 4.5 2.25 3.15 3.15 V or V CC 0.1 V 5.5 2.75 3.85 3.85 3.0 1.5 0.9 0.9 V OUT = 0.1 V 4.5 2.25 1.35 1.35 V or V CC 0.1 V 5.5 2.75 1.65 1.65 3.0 2.99 2.9 2.9 I OUT = 50 A 4.5 4.49 4.4 4.4 V 5.5 5.49 5.4 5.4 V OL Maximum Low Level Output Voltage *V IN = V IL or V IH 3.0 2.56 2.46 12 ma V 4.5 3.86 3.76 I OH 24 ma 5.5 4.86 4.76 24 ma 3.0 0.002 0.1 0.1 I OUT = 50 A 4.5 0.001 0.1 0.1 V 5.5 0.001 0.1 0.1 I IN Maximum Input Leakage Current *V IN = V IL or V IH 3.0 0.36 0.44 12 ma V 4.5 0.36 0.44 I OL 24 ma 5.5 0.36 0.44 24 ma 5.5 ±0.1 ±1.0 A V I = V CC, GND I OLD Minimum Dynamic 5.5 75 ma V OLD = 1.65 V Max I OHD Output Current 5.5 75 ma V OHD = 3.85 V Min I CC Maximum Quiescent Supply Current 5.5 8.0 80 A V IN = V CC or GND *All outputs loaded; thresholds on input associated with output under test. Maximum test duration 2.0 ms, one output loaded at a time. NOTE: I IN and I CC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V V CC. http://oemi.com 4

AC CHARACTERISTICS (For Figures and Waveforms See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) V CC * 74AC161 74AC161 T A = 40 C to +85 C Min Typ Max Min Max Maximum Count 3.3 70 111 60 f max Frequency 5.0 110 167 95 3.3 2.0 7.0 12.0 1.5 13.5 t PLH CP to Q n (PE Input HIGH or LOW) 5.0 1.5 5.0 9.0 1.0 9.5 3.3 1.5 7.0 12.0 1.5 13.0 t PHL CP to Q n (PE Input HIGH or LOW) 5.0 1.5 5.0 9.5 1.5 10.0 3.3 3.0 9.0 15.0 2.5 16.5 t PLH CP to TC 5.0 2.0 6.0 10.5 1.5 11.5 3.3 3.5 8.5 14.0 2.5 15.5 t PHL CP to TC 5.0 2.0 6.5 11.0 2.0 11.5 3.3 2.0 5.5 9.5 1.5 11.0 t PLH CET to TC 5.0 1.5 3.5 6.5 1.0 7.5 3.3 2.5 6.5 11.0 2.0 12.5 t PHL CET to TC 5.0 2.0 5.0 8.5 1.5 9.5 3.3 2.0 6.0 12.0 1.5 13.5 t PHL MR to Q n 5.0 1.5 5.5 9.5 1.5 10.0 3.3 3.5 10.0 15.0 3.0 17.5 t PHL MR to TC 5.0 2.5 8.5 13.0 2.5 13.5 *Voltage Range 3.3 V is 3.3 V ±0.3 V. *Voltage Range 5.0 V is 5.0 V ±0.5 V. MHz Fig. No. 3 3 AC CHARACTERISTICS (For Figures and Waveforms See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) V CC * 74AC163 74AC163 T A = 40 C to +85 C Min Typ Max Min Max Maximum Count 3.3 70 95 60 f max Frequency 5.0 110 140 95 3.3 2.0 7.5 12.5 1.5 13.5 t PLH CP to Q n (PE Input HIGH or LOW) 5.0 1.5 5.5 9.0 1.0 9.5 3.3 1.5 8.5 12.0 1.5 13.0 t PHL CP to Q n (PE Input HIGH or LOW) 5.0 1.5 6.0 9.5 1.5 10.0 3.3 3.0 9.5 15.0 2.5 16.5 t PLH CP to TC 5.0 2.0 7.0 10.5 1.5 11.5 3.3 3.5 11.0 14.0 2.5 15.5 t PHL CP to TC 5.0 2.0 8.0 11.0 2.0 11.5 3.3 2.0 7.5 9.5 1.5 11.0 t PLH CET to TC 5.0 1.5 5.5 6.5 1.0 7.5 3.3 2.5 8.5 11.0 2.0 12.5 t PHL CET to TC 5.0 2.0 6.0 8.5 1.5 9.5 *Voltage Range 3.3 V is 3.3 V ±0.3 V. *Voltage Range 5.0 V is 5.0 V ±0.5 V. MHz Fig. No. 3 3 http://oemi.com 5

AC OPERATING REQUIREMENTS V CC * Typ 74AC161 74AC161 T A = 40 C to +85 C Guaranteed Minimum Setup Time, HIGH or LOW 3.3 6.0 13.5 16.0 t s P n to CP 5.0 3.5 8.5 10.5 Hold Time, HIGH or LOW 3.3 7.0 1.0 0.5 t h P n to CP 5.0 4.0 0 0 Setup Time, HIGH or LOW 3.3 6.5 11.5 14.0 t s PE to CP 5.0 4.0 7.5 8.5 Hold Time, HIGH or LOW 3.3 6.0 0 0 t h PE to CP 5.0 3.5 0.5 1.0 Setup Time, HIGH or LOW 3.3 3.0 6.0 7.0 t s CEP or CET to CP 5.0 2.0 4.5 5.0 Hold Time, HIGH or LOW 3.3 3.5 0 0 t h CEP or CET to CP 5.0 2.0 0 0.5 Clock Pulse Width (Load) 3.3 2.0 3.5 4.0 t w HIGH or LOW 5.0 2.0 2.5 3.0 Clock Pulse Width (Count) 3.3 2.0 4.0 4.5 t w HIGH or LOW 5.0 2.0 3.0 3.5 t w MR Pulse Width, LOW 3.3 3.0 5.5 7.5 5.0 2.5 4.5 6.0 Recovery TIme 3.3 2.0 0.5 0 t rec MR to CP 5.0 1.0 0 0.5 *Voltage Range 3.3 V is 3.3 V ±0.3 V. *Voltage Range 5.0 V is 5.0 V ±0.5 V. Fig. No. http://oemi.com 6

AC OPERATING REQUIREMENTS V CC * Typ 74AC163 74AC163 T A = 40 C to +85 C Guaranteed Minimum Setup Time, HIGH or LOW 3.3 5.5 13.5 16.0 t s P n to CP 5.0 4.0 8.5 10.5 Hold Time, HIGH or LOW 3.3 7.0 1.0 0.5 t h P n to CP 5.0 5.0 0 0 Setup Time, HIGH or LOW 3.3 5.5 14 16.5 t s SR to CP 5.0 4.0 9.5 11.0 Hold Time, HIGH or LOW 3.3 7.5 1.0 0.5 t h SR to CP 5.0 5.5 0.5 0 Setup Time, HIGH or LOW 3.3 5.5 11.5 14.0 t s PE to CP 5.0 4.0 7.5 8.5 Hold Time, HIGH or LOW 3.3 7.5 1.0 0.5 t h PE to CP 5.0 5.0 0.5 0 Setup Time, HIGH or LOW 3.3 3.5 6.0 7.0 t s CEP or CET to CP 5.0 2.5 4.5 5.0 Hold Time, HIGH or LOW 3.3 4.5 0 0 t h CEP or CET to CP 5.0 3.0 0 0.5 Clock Pulse Width (Load) 3.3 3.0 3.5 4.0 t w HIGH or LOW 5.0 2.0 2.5 3.0 Clock Pulse Width (Count) 3.3 3.0 4.0 4.5 t w HIGH or LOW 5.0 2.0 3.0 3.5 *Voltage Range 3.3 V is 3.3 V ±0.3 V. *Voltage Range 5.0 V is 5.0 V ±0.5 V. Fig. No. http://oemi.com 7

DC CHARACTERISTICS V IH V IL V OH Minimum High Level Input Voltage Maximum Low Level Input Voltage Minimum High Level Output Voltage V CC 74ACT Typ 74ACT T A = 40 C to +85 C Guaranteed Limits Conditio 4.5 1.5 2.0 2.0 V OUT = 0.1 V V 5.5 1.5 2.0 2.0 or V CC 0.1 V 4.5 1.5 0.8 0.8 V OUT = 0.1 V V 5.5 1.5 0.8 0.8 or V CC 0.1 V 4.5 4.49 4.4 4.4 5.5 5.49 5.4 5.4 V I OUT = 50 A V OL Maximum Low Level Output Voltage *V IN = V IL or V IH 4.5 3.86 3.76 V 24 ma I 5.5 4.86 4.76 OH 24 ma 4.5 0.001 0.1 0.1 I OUT = 50 A V 5.5 0.001 0.1 0.1 I IN Maximum Input Leakage Current *V IN = V IL or V IH 4.5 0.36 0.44 V 24 ma I 5.5 0.36 0.44 OL 24 ma 5.5 ±0.1 ±1.0 A V I = V CC, GND I CCT Additional Max. I CC /Input 5.5 0.6 1.5 ma V I = V CC 2.1 V I OLD Minimum Dynamic 5.5 75 ma V OLD = 1.65 V Max I OHD Output Current 5.5 75 ma V OHD = 3.85 V Min I CC Maximum Quiescent Supply Current *All outputs loaded; thresholds on input associated with output under test. Maximum test duration 2.0 ms, one output loaded at a time. 5.5 8.0 80 A V IN = V CC or GND http://oemi.com 8

AC CHARACTERISTICS (For Figures and Waveforms See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) f max t PLH t PHL t PLH t PHL t PLH t PHL t PHL t PHL Maximum Count Frequency CP to Q n (PE Input HIGH or LOW) CP or Q n (PE Input HIGH or LOW) CP to TC CP to TC CET to TC CET to TC V CC * 74ACT161 74ACT161 T A = 40 C to +85 C Min Typ Max Min Max Fig. No. 5.0 115 125 100 MHz 3 3 5.0 1.5 8.0 9.5 1.5 10.5 5.0 1.5 8.0 10.5 1.5 11.5 5.0 2.0 11.0 11.0 1.5 12.5 5.0 1.5 11.0 12.5 1.5 13.5 5.0 1.5 7.5 8.5 1.5 10.0 5.0 1.5 8.0 9.5 1.5 10.5 MR to Q n 5.0 1.5 8.0 10.0 1.5 11.0 MR to TC *Voltage Range 5.0 V is 5.0 V ±0.5 V. 5.0 2.5 10.0 13.5 2.0 14.5 AC CHARACTERISTICS (For Figures and Waveforms See Section 3 of the ON Semiconductor FACT Data Book, DL138/D) f max t PLH t PHL t PLH t PHL t PLH t PHL Maximum Count Frequency CP to Q n (PE Input HIGH or LOW) CP to Q n (PE Input HIGH or LOW) CP to TC CP to TC CET to TC CET to TC *Voltage Range 5.0 V is 5.0 V ±0.5 V. V CC * 74ACT163 74ACT163 T A = 40 C to +85 C Min Typ Max Min Max Fig. No. 5.0 120 140 105 MHz 3 3 5.0 1.5 5.5 10.0 1.5 11.0 5.0 1.5 6.0 11.0 1.5 12.0 5.0 2.5 7.0 11.5 2.0 13.5 5.0 3.0 8.0 13.5 2.0 15.0 5.0 2.0 5.5 9.0 1.5 10.5 5.0 2.0 6.0 10.0 2.0 11.0 http://oemi.com 9

AC OPERATING REQUIREMENTS t s t h t s t h t s t h t w t w Setup Time, HIGH or LOW P n to CP Hold Time, HIGH or LOW P n to CP Setup Time, HIGH or LOW PE to CP Hold Time, HIGH or LOW PE to CP Setup Time, HIGH or LOW CEP or CET to CP Hold Time, HIGH or LOW CEP or CET to CP Clock Pulse Width (Load) HIGH or LOW Clock Pulse Width (Count) HIGH or LOW V CC * Typ 74ACT161 74ACT161 T A = 40 C to +85 C Guaranteed Minimum Fig. No. 5.0 7.0 9.5 11.5 5.0 3.0 0 0 5.0 6.0 8.5 9.5 5.0 3.5 0.5 0.5 5.0 4.0 5.5 6.5 5.0 2.0 0 0 5.0 2.0 3.0 3.5 5.0 2.0 3.0 3.5 t w MR Pulse Width, LOW 5.0 3.0 3.0 7.5 t rec Recovery Time MR to CP *Voltage Range 5.0 V is 5.0 V ±0.5 V. 5.0 0 0 0.5 http://oemi.com 10

AC OPERATING REQUIREMENTS t s t h t s t h t s t h t s t h t w t w Setup Time, HIGH or LOW P n to CP Hold Time, HIGH or LOW P n to CP Setup Time, HIGH or LOW SR to CP Hold Time, HIGH or LOW SR to CP Setup Time, HIGH or LOW PE to CP Hold Time, HIGH or LOW PE to CP Setup Time, HIGH or LOW CEP or CET to CP Hold Time, HIGH or LOW CEP or CET to CP Clock Pulse Width HIGH or LOW Clock Pulse Width (Count) HIGH or LOW *Voltage Range 5.0 V is 5.0 V ±0.5 V. V CC * Typ 74ACT163 74ACT163 T A = 40 C to +85 C Guaranteed Minimum Fig. No. 5.0 4.0 10.0 12.0 5.0 5.0 0.5 0.5 5.0 4.0 10.0 11.5 5.0 5.5 0.5 0.5 5.0 4.0 8.5 10.5 5.0 5.5 0.5 0 5.0 2.5 5.5 6.5 5.0 3.0 0 0.5 5.0 2.0 3.5 3.5 5.0 2.0 3.5 3.5 CAPACITANCE Value Typ Test Conditio C IN Input Capacitance 4.5 pf V CC = 5.0 V C PD Power Dissipation Capacitance 45 pf V CC = 5.0 V MARKING DIAGRAMS DIP 16 SO 16 EIAJ 16 MC74AC16xN AWLYYWW AC16x AWLYWW 74AC16x ALYW MC74ACT16xN AWLYYWW ACT16x AWLYWW 74ACT16x ALYW x = 1 or 3 A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week http://oemi.com 11

ORDERING INFORMATION Device Package Shipping MC74AC161N PDIP 16 25 s/rail MC74ACT161N PDIP 16 25 s/rail MC74AC161D SOIC 16 48 s/rail MC74AC161DR2 SOIC 16 2500 Tape & Reel MC74ACT161D SOIC 16 48 s/rail MC74ACT161DR2 SOIC 16 2500 Tape & Reel MC74AC161M EIAJ 16 50 s/rail MC74ACT161MEL EIAJ 16 2000 Tape & Reel MC74AC163N PDIP 16 25 s/rail MC74ACT163N PDIP 16 25 s/rail MC74AC163D SOIC 16 48 s/rail MC74AC163DR2 SOIC 16 2500 Tape & Reel MC74ACT163D SOIC 16 48 s/rail MC74ACT163DR2 SOIC 16 2500 Tape & Reel MC74AC163MEL EIAJ 16 2000 Tape & Reel MC74ACT163MEL EIAJ 16 2000 Tape & Reel http://oemi.com 12

PACKAGE DIMENSIONS 16 H A 1 8 G F 9 D 16 PL B S C K 0.25 (0.010) M T PDIP 16 N SUFFIX 16 PIN PLASTIC DIP PACKAGE CASE 648 08 ISSUE R SEATING T PLANE A M J L M NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. INCHES MILLIMETERS DIM MIN MAX MIN MAX A 0.740 0.770 18.80 19.55 B 0.250 0.270 6.35 6.85 C 0.145 0.175 3.69 4.44 D 0.015 0.021 0.39 0.53 F 0.040 0.70 1.02 1.77 G 0.100 BSC 2.54 BSC H 0.050 BSC 1.27 BSC J 0.008 0.015 0.21 0.38 K 0.110 0.130 2.80 3.30 L 0.295 0.305 7.50 7.74 M 0 10 0 10 S 0.020 0.040 0.51 1.01 SO 16 D SUFFIX 16 PIN PLASTIC SOIC PACKAGE CASE 751B 05 ISSUE J T SEATING PLANE 16 9 1 8 G A K B D 16 PL 0.25 (0.010) M T B S A S P 8 PL 0.25 (0.010) M B S C M R X 45 J F NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 9.80 10.00 0.386 0.393 B 3.80 4.00 0.150 0.157 C 1.35 1.75 0.054 0.068 D 0.35 0.49 0.014 0.019 F 0.40 1.25 0.016 0.049 G 1.27 BSC 0.050 BSC J 0.19 0.25 0.008 0.009 K 0.10 0.25 0.004 0.009 M 0 7 0 7 P 5.80 6.20 0.229 0.244 R 0.25 0.50 0.010 0.019 http://oemi.com 13

PACKAGE DIMENSIONS e 16 9 1 Z b D A H E A 1 0.13 (0.005) M 0.10 (0.004) 8 E EIAJ 16 M SUFFIX 16 PIN PLASTIC EIAJ PACKAGE CASE966 01 ISSUE O VIEW P M L E Q 1 L DETAIL P c NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS D AND E DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS AND ARE MEASURED AT THE PARTING LINE. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.15 (0.006) PER SIDE. 4. TERMINAL NUMBERS ARE SHOWN FOR REFERENCE ONLY. 5. THE LEAD WIDTH DIMENSION (b) DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE LEAD WIDTH DIMENSION AT MAXIMUM MATERIAL CONDITION. DAMBAR CANNOT BE LOCATED ON THE LOWER RADIUS OR THE FOOT. MINIMUM SPACE BETWEEN PROTRUSIONS AND ADJACENT LEAD TO BE 0.46 ( 0.018). MILLIMETERS INCHES DIM MIN MAX MIN MAX A 2.05 0.081 A 1 0.05 0.20 0.002 0.008 b 0.35 0.50 0.014 0.020 c 0.18 0.27 0.007 0.011 D 9.90 10.50 0.390 0.413 E 5.10 5.45 0.201 0.215 e 1.27 BSC 0.050 BSC H E 7.40 8.20 0.291 0.323 L 0.50 0.85 0.020 0.033 L E 1.10 1.50 0.043 0.059 M 0 10 0 10 Q 1 0.70 0.90 0.028 0.035 Z 0.78 0.031 http://oemi.com 14

Notes ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, coequential or incidental damages. Typical parameters which may be provided in SCILLC data sheets and/or specificatio can and do vary in different applicatio and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customer s technical experts. SCILLC does not convey any licee under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applicatio intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless agait all claims, costs, damages, and expees, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 61312, Phoenix, Arizona 85082 1312 USA Phone: 480 829 7710 or 800 344 3860 Toll Free USA/Canada Fax: 480 829 7709 or 800 344 3867 Toll Free USA/Canada Email: orderlit@oemi.com N. American Technical Support: 800 282 9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2 9 1 Kamimeguro, Meguro ku, Tokyo, Japan 153 0051 Phone: 81 3 5773 3850 http://oemi.com 15 ON Semiconductor Website: http://oemi.com Order Literature: http://www.oemi.com/litorder For additional information, please contact your local Sales Representative. MC74AC161/D

Synchronous Presettable Binary Counter Ordering Information Product Pi Package Container Type Qty. MC74AC163DR2G 16 SOIC Tape & Reel 2500