UNISONIC TECHNOLOGIES CO., LTD

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Arabella Sybil Ward
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1 UNISONIC TECHNOLOGIES CO., LTD SINGLE 2-LINE TO 1-LINE DATA SELECTOR OR MULTIPLEXER DESCRIPTION The U74LC2G157 is a single 2-line to 1-line data selector or multiplexer which is featured a common strobe ( G) input. When the strobe is high, the output Y is low and Y is high regardless of the levels of other inputs. When the strobe is low, a single bit is selected from one of two sources and is traferred to the output with the true and complementary data. This device has power-down protective circuit, preventing device destruction when it is powered down. SOP-8 FEATURES * Operate from 1.65 to 5.5 * Inputs accept voltages to 5.5 * I off supports partial-power-down mode * Low power dissipation: I CC =10μA(Max.) * ±24mA output drive( CC =3.3) * Max tpd at 6 of 3.3 ORDERING INFORMATION Ordering Number Lead Free Halogen Free Package Packing U74LC2G157L-S08-T U74LC2G157G-S08-T SOP-8 Tube U74LC2G157L-S08-R U74LC2G157G-S08-R SOP-8 Tape Reel 1 of 5 Copyright 2012 Unisonic Technologies Co., Ltd

2 PIN CONFIGURATION FUNCTION TABLE (EACH GATE) INPUTS OUTPUT G A /B A B Y Y H X X X L H L L L X L H L L H X H L L H X L L H L H X H H L Note: H: HIGH voltage level; L: LOW voltage level; X: Don t care LOGIC DIAGRAM (positive logic) G A/B 7 6 A 1 5 Y B 2 3 Y UNISONIC TECHNOLOGIES CO., LTD 2 of 5

3 ABSOLUTE MAXIMUM RATING PARAMETER SYMBOL RATINGS UNIT Supply oltage CC -0.5 ~ +6.5 Input oltage IN -0.5 ~ +6.5 Output in the high or low state -0.5 ~ CC +0.5 Output oltage Output in the high-impedance or OUT power-off state -0.5 ~ +6.5 CC or GND Current I CC ±100 ma Continuous Output Current ( OUT =0 to CC) I OUT ±50 ma Input Clamp Current ( IN <0) I IK -50 ma Output Clamp Current ( OUT <0 ) I OK -50 ma Storage Temperature Range T STG -65 ~ +150 C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. RECOMMENDED OPERATING CONDITIONS Supply oltage CC Operating Data retention only 1.5 Input oltage IN Output oltage OUT 0 CC CC =1.65~ * CC High-Level Input oltage IH CC =2.3~ CC =3.0~3.6 2 CC =4.5~ * CC CC =1.65~ * CC Low-Level Input oltage IL CC =2.3~ CC =3.0~ CC =4.5~ * CC CC = ma CC =2.3-8 ma High-level Output Current I OH CC = ma CC = ma CC = ma CC = ma CC =2.3 8 ma Low-level Output Current I OL CC = ma CC = ma CC = ma CC =1.65~1.95, 2.3~ / Input Traition Rise or Fall Δt/Δv CC =3.0~ / Rate CC =4.5~5.5 5 / Operating Temperature T A C UNISONIC TECHNOLOGIES CO., LTD 3 of 5

4 ELECTRICAL CHARACTERISTICS (T A =25 C, unless otherwise specified) CC =1.65~5.5, I OH =-100μA CC -0.1 CC =1.65, I OH =-4mA 1.2 High-Level Output oltage OH CC =2.3, I OH =-8mA 1.9 CC =3.0, I OH =-16mA 2.2 CC =3.0, I OH =-24mA 2.3 CC =4.5, I OH =-32mA 3.8 CC =1.65~5.5, I OH =-100μA 0.1 CC =1.65, I OH =4mA 0.45 Low-Level Output oltage OL CC =2.3, I OH =8mA 0.3 CC =3.0, I OH =16mA 0.4 CC =3.0, I OH =24mA 0.55 CC =4.5, I OH =32mA 0.55 Input Leakage Current I I(LEAK) CC =0~5.5, IN =5.5 or GND ±5 μa Power OFF Leakage Current I OFF CC =0, IN or OUT =5.5 ±10 μa Quiescent Supply Current I Q CC =1.65~5.5, IN =5.5 or GND, I OUT =0 10 μa Additional Quiescent Supply CC =3~5.5, One input at CC -0.6, ΔI Q Current other inputs at CC or GND 500 μa Input Capacitance C IN CC =3.3, IN = CC or GND 5 pf SWITCHING CHARACTERISTICS (T A =25 C, unless otherwise specified) Propagation delay from input t PLH /t PHL CC =2.3~ (A or B) to output(y or Y ) CC =3.0~ CC =1.65~ CC =4.5~ Propagation delay from input t PLH /t PHL CC =2.3~ ( A /B) to output(y or Y ) CC =3.0~ CC =1.65~ CC =4.5~ Propagation delay from input t PLH /t PHL CC =2.3~ (G) to output(y or Y ) CC =3.0~ CC =1.65~ CC =4.5~ OPERATING CHARACTERISTICS (T A =25 C, unless otherwise specified) CC =1.8, f=10mhz 35 pf Power Dissipation CC =2.5, f=10mhz 35 pf Cpd Capacitance CC =3.3, f=10mhz 37 pf CC =5, f=10mhz 40 pf UNISONIC TECHNOLOGIES CO., LTD 4 of 5

5 TEST CIRCUIT AND WAEFORMS From Output C L R L TEST CIRCUIT CC Inputs IN t R, t F M C L R L CC =1.65~1.95 CC 2 CC /2 30pF 1KΩ CC =2.3~2.7 CC 2 CC /2 30pF 500Ω CC =3.0~ pF 500Ω CC =4.5~5.5 CC 2.5 CC /2 50pF 500Ω Note: 1. C L includes probe and jig capacitance. 2. All input pulses are supplied by generators having the following characteristics: PRR 10MHz, Zo = 50Ω. UTC assumes no respoibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specificatio of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written coent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD 5 of 5

UNISONIC TECHNOLOGIES CO., LTD

U74LC1G04 UNISONIC TECHNOLOGIES CO., LTD SINGLE INERTER GATE DESCRIPTION The UTC U74LC1G04 is a single inverter gate, it provides the function Y = A. This device has power-down protective circuit, preventing