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74VHC164 8-Bit Serial-In, Parallel-Out Shift Register
August 1993 Revised February 2005
74VHC164 8-Bit Serial-In, Parallel-Out Shift Register
General Description
The VHC164 is an advanced high-speed CMOS device fabricated with silicon gate CMOS technology. It achieves the high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The VHC164 is a high-speed 8-Bit Serial-In/Parallel-Out Shift Register. Serial data is entered through a 2input AND gate synchronous with the LOW-to-HIGH transition of the clock. The device features an asynchronous Master Reset which clears the register, setting all outputs LOW independent of the clock. An input protection circuit insures that 0V to 7V can be applied to the input pins without regard to the supply voltage. This device can be used to interface 5V to 3V systems and two supply systems such as battery backup. This circuit prevents device destruction due to mismatched supply and input voltages.
Features
s High Speed: fMAX
175 MHz at VCC VNIL
5V 25qC
s Low power dissipation: ICC s High noise immunity: VNIH s Low noise: VOLP
4 PA (max) at TA
28% VCC (min)
s Power down protection provided on all inputs
0.8V (max)
s Pin and function compatible with 74HC164
Ordering Code:
Order Number 74VHC164M 74VHC164MX_NL (Note 1) 74VHC164SJ 74VHC164MTC 74VHC164MTCX_NL (Note 1) 74VHC164N Package Number M14A M14A M14D MTC14 MTC14 N14A Package Description 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Pb-Free 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter "X" to the ordering code. Pb-Free package per JEDEC J-STD-020B. Note 1: "_NL" indicates Pb-Free package (per JEDEC J-STD-020B). Device available in Tape and Reel only.
Logic Symbol
Connection Diagram
Pin Descriptions
Pin Names A, B CP MR Q0-Q7 Data Inputs Clock Pulse Input (Active Rising Edge) Master Reset Input (Active LOW) Outputs DS011636 www.fairchildsemi.com Description
(c) 2005 Fairchild Semiconductor Corporation
74VHC164
Functional Description
The VHC164 is an edge-triggered 8-bit shift register with serial data entry and an output from each of the eight stages. Data is entered serially through one of two inputs (A or B); either of these inputs can be used as an active High Enable for data entry through the other input. An unused input must be tied HIGH. Each LOW-to-HIGH transition on the Clock (CP) input shifts data one place to the right and enters into Q0 the logical AND of the two data inputs (A * B) that existed before the rising clock edge. A LOW level on the Master Reset (MR) input overrides all other inputs and clears the register asynchronously, forcing all Q outputs LOW.
Function Table
Operating Mode Reset (Clear) Shift MR L H H H H Inputs A X L L H H B X L H L H Outputs Q0 L L L L H Q1-Q7 L-L Q0-Q6 Q0-Q6 Q0-Q6 Q0-Q6
H HIGH Voltage Levels L LOW Voltage Levels X Immaterial Q Lower case letters indicate the state of the referenced input or output one setup time prior to the LOW-to-HIGH clock transition.
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
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74VHC164
Absolute Maximum Ratings(Note 2)
Supply Voltage (VCC ) DC Input Voltage (VIN) DC Output Voltage (VOUT) DC Diode Current (IIK) Output Diode Current (IOK) DC Output Current (IOUT) DC VCC /GND Current (ICC ) Storage Temperature (TSTG) Lead Temperature (TL) (Soldering, 10 seconds) 260qC
0.5V to 7.0V 0.5V to 7.0V 0.5V to VCC 0.5V 20 mA r20 mA r25 mA r75 mA 65qC to 150qC
Recommended Operating Conditions (Note 3)
Supply Voltage (VCC) Input Voltage (VIN) Output Voltage (VOUT) Operating Temperature (TOPR) Input Rise and Fall Time (tr, tf) VCC VCC 3.3V r 0.3V 5.0V r 0.5V 0 ns/V a 100 ns/V 0 ns/V a 20 ns/V 2.0V to 5.5V 0V to 5.5V 0V to VCC
40qC to 85qC
Note 2: Absolute maximum ratings are those values beyond which damage to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. Fairchild does not recommend operation of circuits outside databook specifications. Note 3: Unused inputs must be held HIGH or LOW. They may not float.
DC Electrical Characteristics
Symbol VIH VIL VOH Parameter HIGH Level Input Voltage LOW Level Input Voltage HIGH Level Output Voltage VCC (V) 2.0 3.0 5.5 2.0 3.0 5.5 2.0 3.0 4.5 3.0 4.5 VOL LOW Level Output Voltage 2.0 3.0 4.5 3.0 4.5 IIN ICC Input Leakage Current Quiescent Supply Current 0 5.5 5.5 1.9 2.9 4.4 2.58 3.94 0.0 0.0 0.0 0.1 0.1 0.1 0.36 0.36 2.0 3.0 4.5 TA Min 1.50 0.7 VCC 0.50 0.3 VCC 1.9 2.9 4.4 2.48 3.80 0.1 0.1 0.1 0.44 0.44 V IOL IOL VIN VIN VCC or GND 4 mA 8 mA V V VIN or VIL VIH IOH IOH IOL V 25qC Typ Max TA
40qC to 85qC
Max
Units
Conditions
Min 1.50 0.7 VCC
V 0.50 0.3 VCC V VIN or VIL VIH IOH
50 PA
4 mA 8 mA
50 PA
r0.1
4.0
r1.0
40.0
PA PA
5.5V or GND
Noise Characteristics
Symbol VOLP (Note 4) VOLV (Note 4) VIHD (Note 4) VILD (Note 4) Parameter Quiet Output Maximum Dynamic VOL Quiet Output Minimum Dynamic VOL Minimum HIGH Level Dynamic Input Voltage Maximum LOW Level Dynamic Input Voltage VCC (V) 5.0 5.0 5.0 5.0 TA Typ 0.5 25qC Limits 0.8 0.8 3.5 1.5 Units V V V V CL CL CL CL 50 pF 50 pF 50 pF 50 pF Conditions
0.5
Note 4: Parameter guaranteed by design.
3
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74VHC164
AC Electrical Characteristics
Symbol fMAX Parameter Maximum Clock Frequency VCC (V) 3.3 r 0.3 5.0 r 0.5 tPLH tPHL Propagation Delay Time (CP-Qn) 3.3 r 0.3 5.0 r 0.5 tPHL Propagation Delay Time (MR-Qn) 3.3 r 0.3 5.0 r 0.5 CIN CPD Input Capacitance Power Dissipation Capacitance TA Min 80 50 125 85 25qC Typ 125 75 175 115 8.4 10.9 5.8 7.3 8.3 10.8 5.2 6.7 4 76 12.8 16.3 9.0 11.0 12.8 16.3 8.6 10.6 10 Max TA
40qC to 85qC
Max 65 45
Min
Units MHz MHz CL CL CL CL CL CL CL CL CL CL CL CL VCC
Conditions 15 pF, RL 50 pF, RL 15 pF, RL 50 pF, RL 15 pF, RL 50 pF, RL 15 pF, RL 50 pF, RL 15 pF, RL 50 pF, RL 15 pF, RL 50 pF, RL Open 1k 1k 1k 1k 1k 1k 1k 1k 1k 1k 1k 1k
105 75 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 15.0 18.5 10.5 12.5 15.0 18.5 10.0 12.0 10
ns ns ns ns pF pF
(Note 5)
Note 5: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load. Average operating current can be obtained from the equation: ICC (opr.) CPD * VCC * fIN I CC.
AC Operating Requirements
Symbol tW(L) tW(H) tW(L) tS tH Minimum Pulse Width (MR) Minimum Setup Time Minimum Hold Time Parameter Minimum Pulse Width (CP) VCC (V) (Note 6) 3.3 5.0 3.3 5.0 3.3 5.0 3.3 5.0 tREC Minimum Removal Time (MR) 3.3 5.0
Note 6: VCC is 3.3 r 0.3V or 5.0 r 0.5V
TA Typ
25qC
TA
40qC to 85qC
Units
Guaranteed Minimum 5.0 5.0 5.0 5.0 5.0 4.5 0.0 1.0 2.5 2.5 5.0 5.0 5.0 5.0 6.0 4.5 0.0 1.0 2.5 2.5
ns
ns ns ns
ns
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74VHC164
Physical Dimensions inches (millimeters) unless otherwise noted
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow Package Number M14A
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74VHC164
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide Package Number M14D
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74VHC164
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Package Number MTC14
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74VHC164 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 8 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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