MM74C221 Dual Monostable Multivibrator

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MM74C221 Dual Monostable Multivibrator General Description The MM74C221 dual monostable multivibrator is a monolithic complementary MOS integrated circuit.

1 MM74C221 Dual Monostable Multivibrator General Description The MM74C221 dual monostable multivibrator is a monolithic complementary MOS integrated circuit. Each multivibrator features a negative-traition-triggered input and a positive-traition-triggered input, either of which can be used as an inhibit input, and a clear input. Once fired, the output pulses are independent of further traitio of the A and B inputs and are a function of the external timing components C EXT and R EXT. The pulse width is stable over a wide range of temperature and CC. Pulse stability will be limited by the accuracy of external timing components. The pulse width is approximately defined by the relatiohip t W(OUT) C EXT R EXT. For further information and applicatio, see AN-138. Features November 1987 Revised May 2002 Wide supply voltage range: 4.5 to 15 Guaranteed noise margin: 1.0 High noise immunity: 0.45 CC (typ.) Low power TTL compatibility: fan out of 2 driving 74L MM74C221 Dual Monostable Multivibrator Ordering Code: Order Number Package Number Package Description 74MMC221N N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Connection Diagrams Timing Component Truth Table Inputs Outputs Clear A B Q Q L X X L H X H X L H X X L L H H L H H H = HIGH Level L = LOW Level X= Irrelevant = Traition from LOW-to-HIGH = Traition from HIGH-to-LOW = One HIGH Level Pulse = One LOW Level Pulse Top iew 2002 Fairchild Semiconductor Corporation DS

2 MM74C221 Absolute Maximum Ratings(Note 1) oltage at Any Pin 0.3 to CC Operating Temperature Range 55 C to +125 C Storage Temperature Range 65 C to +150 C Power Dissipation Dual-In-Line 700 mw Small Outline 500 mw Operating CC Range 4.5 to 15 Absolute Maximum CC 18 R EXT 80 CC (Ω) Lead Temperature (Soldering, 10 seconds) 260 C Note 1: Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. Except for Operating Temperature Range they are not meant to imply that the devices should be operated at these limits. The Electrical Characteristics table provides conditio for actual device operation. DC Electrical Characteristics Max/min limits apply across temperature range, unless otherwise noted Symbol Parameter Conditio Min Typ Max Units CMOS to CMOS IN(1) Logical 1 Input oltage CC = CC = IN(0) Logical 0 Input oltage CC = CC = OUT(1) Logical 1 Output oltage CC = 5, I O = 10 µa 4.5 CC = 10, I O = 10 µa 9.0 OUT(0) Logical 0 Output oltage CC = 5, I O = +10 µa 0.5 CC = 10, I O = +10 µa 1 I IN(1) Logical 1 Input Current CC = 15, IN = µa I IN(0) Logical 0 Input Current CC = 15, IN = µa I CC Supply Current (Standby) CC = 15, R EXT =, µa Q1, Q2 = Logic 0 (Note 2) I CC Supply Current CC = 15, Q1 = Logic 1, 15 ma (During Output Pulse) Q2 = Logic 0 (Figure 4) CC = 5, Q1 = Logic 1, 2 ma Q2 = Logic 0 (Figure 4) Leakage Current at R/C EXT Pin CC = 15, CEXT = µa CMOS/LPTTL Interface IN(1) Logical 1 Input oltage CC = 4.75 CC 1.5 IN(0) Logical 0 Input oltage CC = OUT(1) Logical 1 Output oltage CC = 4.75, I O = 360 µa 2.4 OUT(0) Logical 0 Output oltage CC = 4.75, I O = 360 µa 0.4 Output Drive (See Family Characteristics Data Sheet) (Short Circuit Current) I SOURCE Output Source Current CC = ma (P-Channel) T A = 25 C, OUT = 0 I SOURCE Output Source Current CC = 10 8 ma (P-Channel) T A = 25 C, OUT = 0 I SINK Output Sink Current CC = ma (N-Channel) T A = 25 C, OUT = CC I SINK Output Sink Current CC = 10 8 ma (N-Channel) T A = 25 C, OUT = CC Note 2: In Standby (Q = Logic 0 ) the power dissipated equals the leakage current plus CC /R EXT. 2

3 AC Electrical Characteristics (Note 3) T A = 25 C, C L = 50 pf, unless otherwise noted Symbol Parameter Conditio Min Typ Max Units t pd A, B Propagation Delay from Trigger CC = Input (A, B) to Output Q, Q CC = t pd CL Propagation Delay from Clear CC = Input (CL) to Output Q, Q CC = t S Time Prior to Trigger Input (A, B) CC = that Clear must be Set CC = t W(A, B) Trigger Input (A, B) Pulse Width CC = CC = t W(CL) Clear Input (CL) Pulse Width CC = CC = t W(OUT) Q or Q Output Pulse Width CC = 5, R EXT = 10k, 900 C EXT = 0 pf CC = 10, R EXT = 10k, 350 C EXT = 0 pf CC = 15, R EXT = 10k, 320 C EXT = 0 pf CC = 5, R EXT = 10k, µs C EXT = 1000 pf (Figure 1) CC = 10, R EXT = 10k, µs C EXT = 1000 pf (Figure 1) CC = 15, R EXT = 10k, µs C EXT = 1000 pf (Figure 1) CC = 5, R EXT = 10k, µs C EXT = 0.1 µf (Figure 3) CC = 10, R EXT = 10k, µs C EXT = 0.1 µf (Figure 3) CC = 15, R EXT = 10k, µs C EXT = 0.1 µf (Figure 3) R ON ON Resistance of Traistor CC = 5 (Note 4) between R/C EXT to C EXT CC = 10 (Note 4) Ω CC = 15 (Note 4) Output Duty Cycle R = 10k, C = 1000 pf 90 R = 10k, C = 0.1 µf 90 % (Note 5) C IN Input Capacitance R/C EXT Input (Note 6) Any Other Input (Note 6) 5 pf Note 3: AC Parameters are guaranteed by DC correlated testing. Note 4: See AN-138 for detailed explanation R ON. Note 5: Maximum output duty cycle = R EXT /R EXT Note 6: Capacitance is guaranteed by periodic testing. MM74C

4 MM74C221 Typical Performance Characteristics 0% Point pulse width: At CC = 5, T W = 10.6 µs At CC = 10,T W = 10 µs At CC = 15,T W = 9.8 µs Percentage of units within +4%: At CC = 5,90% of units At CC = 10,95% of units At CC = 15,98% of units FIGURE 1. Typical Distribution of Units for Output Pulse Width 0% Point pulse width: At CC = 5, T W = 1020 µs At CC = 10,T W = 1000 µs At CC = 15,T W = 982 µs Percentage of units within +4%: At CC = 5,95% of units At CC = 10,97% of units At CC = 15,98% of units FIGURE 3. Typical Distribution of Units for Output Pulse Width FIGURE 2. Typical ariation in Output Pulse Width vs Temperature FIGURE 4. Typical Power Dissipation per Package 4

5 Typical Performance Characteristics (Continued) Switching Time Waveforms MM74C221 t r = t f =

6 MM74C221 Dual Monostable Multivibrator Physical Dimeio inches (millimeters) unless otherwise noted 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Package Number N16E Fairchild does not assume any respoibility for use of any circuitry described, no circuit patent licees are implied and Fairchild reserves the right at any time without notice to change said circuitry and specificatio. LIFE SUPPORT POLICY FAIRCHILD S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and (c) whose failure to perform when properly used in accordance with itructio for use provided in the labeling, can be reasonably expected to result in a significant injury to the user A critical component in any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

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