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MM74HC164 8-Bit Serial-in/Parallel-out Shift Register
September 1983 Revised May 2002
MM74HC164 8-Bit Serial-in/Parallel-out Shift Register
General Description
The MM74HC164 utilizes advanced silicon-gate CMOS technology. It has the high noise immunity and low consumption of standard CMOS integrated circuits. It also offers speeds comparable to low power Schottky devices. This 8-Bit shift register has gated serial inputs and CLEAR. Each register bit is a D-type master/slave flip-flop. Inputs A & B permit complete control over the incoming data. A LOW at either or both inputs inhibits entry of new data and resets the first flip-flop to the low level at the next clock pulse. A high level on one input enables the other input which will then determine the state of the first flip-flop. Data at the serial inputs may be changed while the clock is HIGH or LOW, but only information meeting the setup and hold time requirements will be entered. Data is serially shifted in and out of the 8-Bit register during the positive going transition of the clock pulse. Clear is independent of the clock and accomplished by a low level at the CLEAR input. The 74HC logic family is functionally as well as pin-out compatible with the standard 74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and ground.
Features
s Typical operating frequency: 50 MHz s Typical propagation delay: 19 ns (clock to Q) s Wide operating supply voltage range: 2 to 6V s Low input current: 1 A maximum s Low quiescent supply current: 80 A maximum (74HC Series) s Fanout of 10 LS-TTL loads
Ordering Code:
Order Number MM74HC164M MM74HC164N Package Number M14A N14A Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter "X" to the ordering code.
Connection Diagram
Truth Table
Inputs Clear Clock L H H H H X L A X X H L X B X X H X L QA L QAO H L L Outputs QB L QBO QAn QAn QAn ... QH L QHO QGn QGn QGn

H = HIGH Level (steady state), L = LOW Level (steady state) X = Irrelevant (any input, including transitions) = Transition from LOW-to-HIGH level. QAO, Q BO, QHO = the level of QA, Q B, or QH, respectively, before the indicated steady state input conditions were established. QAn, QGn = The level of QA or QG before the most recent transition of the clock; indicated a one-bit shift.
Top View
(c) 2002 Fairchild Semiconductor Corporation
DS005315
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MM74HC164
Logic Diagram
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MM74HC164
Absolute Maximum Ratings(Note 1)
(Note 2) Supply Voltage (VCC) DC Input Voltage (VIN) DC Output Voltage (VOUT) Clamp Diode Current (IIK, IOK) DC Output Current, per pin (IOUT) DC VCC or GND Current, per pin (ICC) Storage Temperature Range (TSTG) Power Dissipation (PD) (Note 3) S.O. Package only Lead Temperature (TL) (Soldering 10 seconds) 260C 600 mW 500 mW
Recommended Operating Conditions
Min Supply Voltage (VCC) DC Input or Output Voltage (VIN, VOUT) Input Rise or Fall Times (tr, tf) VCC = 2.0V VCC = 4.5V VCC = 6.0V 1000 500 400 ns ns ns 0 VCC V Operating Temperature Range (TA) -40 2 Max 6 Units V
-0.5 to +7.0V -1.5 to VCC +1.5V -0.5 to VCC +0.5V 20 mA 25 mA 50 mA -65C to +150C
+85
C
Note 1: Absolute Maximum Ratings are those values beyond which damage to the device may occur. Note 2: Unless otherwise specified all voltages are referenced to ground. Note 3: Power Dissipation temperature derating -- plastic "N" package: - 12 mW/C from 65C to 85C.
DC Electrical Characteristics
Symbol VIH Parameter Minimum HIGH Level Input Voltage VIL Maximum LOW Level Input Voltage VOH Minimum HIGH Level Output Voltage VIN = VIH or VIL |IOUT| 20 A Conditions
(Note 4)
VCC 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0 4.5 6.0 4.2 5.7 0 0 0 0.2 0.2 TA = 25C Typ 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.98 5.48 0.1 0.1 0.1 0.26 0.26 0.1 8.0 TA = -40 to 85C TA = -55 to 125C Guaranteed Limits 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.84 5.34 0.1 0.1 0.1 0.33 0.33 1.0 80 1.5 3.15 4.2 0.5 1.35 1.8 1.9 4.4 5.9 3.7 5.2 0.1 0.1 0.1 0.4 0.4 1.0 160 Units V V V V V V V V V V V V V V V V A A
VIN = VIH or VIL |IOUT| 4.0 mA |IOUT| 5.2 mA VOL Maximum LOW Level Output Voltage VIN = VIH or VIL |IOUT| 20 A 2.0V 4.5V 6.0V VIN = VIH or VIL |IOUT| 4.0 mA |IOUT| 5.2 mA IIN ICC Maximum Input Current Maximum Quiescent Supply Current VIN = VCC or GND IOUT = 0 A 6.0V VIN = VCC or GND 4.5V 6.0V 6.0V 4.5V 6.0V
Note 4: For a power supply of 5V 10% the worst case output voltages (VOH, and VOL) occur for HC at 4.5V. Thus the 4.5V values should be used when designing with this supply. Worst case VIH and VIL occur at VCC = 5.5V and 4.5V respectively. (The VIH value at 5.5V is 3.85V.) The worst case leakage current (IIN, ICC, and IOZ) occur for CMOS at the higher voltage and so the 6.0V values should be used.
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MM74HC164
AC Electrical Characteristics
VCC = 5V, TA = 25C, CL = 15 pF, tr = tf = 6 ns Symbol fMAX tPHL, tPLH tPHL tREM tS tH tW Parameter Maximum Operating Frequency Maximum Propagation Delay, Clock to Output Maximum Propagation Delay, Clear to Output Minimum Removal Time, Clear to Clock Minimum Setup Time Data to Clock Minimum Hold Time Clock to Data Minimum Pulse Width Clear or Clock 10 16 ns 1 5 ns 12 20 ns -2 0 ns 23 35 ns 19 30 ns Conditions Typ Guaranteed Limit 30 Units MHz
AC Electrical Characteristics
CL = 50 pF, tr = tf = 6 ns (unless otherwise specified) Symbol fMAX Parameter Maximum Operating Frequency tPHL, tPLH Maximum Propagation Delay, Clock to Output tPHL Maximum Propagation Delay, Clear to Output tREM Minimum Removal Time Clear to Clock tS Minimum Setup Time Data to Clock tH Minimum Hold Time Clock to Data tW Minimum Pulse Width Clear or Clock tTHL, tTLH Maximum Output Rise and Fall Time tr, tf Maximum Input Rise and Fall Time Conditions VCC 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V 2.0V 4.5V 6.0V CPD CIN Power Dissipation Capacitance (Note 5) Maximum Input Capacitance (per package) 5.0V 150 5 10 10 10 115 13 20 140 28 24 -7 -3 -2 25 14 12 -2 0 1 22 11 10 TA = 25C Typ 5 27 31 175 35 30 205 41 35 0 0 0 100 20 17 5 5 5 80 16 14 75 15 13 1000 500 400 TA = -40 to 85C TA = -55 to 125C Guaranteed Limits 4 21 24 218 44 38 256 51 44 0 0 0 125 25 21 5 5 5 100 20 18 95 19 16 1000 500 400 3 18 20 254 51 44 297 59 51 0 0 0 150 30 25 5 5 5 120 24 20 110 22 19 1000 500 400 MHz MHz MHz ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns pF pF Units
Note 5: CPD determines the no load dynamic power consumption, PD = CPD VCC2 f + ICC VCC, and the no load dynamic current consumption, IS = CPD VCC f + ICC.
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MM74HC164
Physical Dimensions inches (millimeters) unless otherwise noted
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150" Narrow Package Number M14A
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MM74HC164 8-Bit Serial-in/Parallel-out Shift Register
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Package Number N14A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL 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 instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. www.fairchildsemi.com 6 2. 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. www.fairchildsemi.com

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