MM74C164

MM74C164 8-Bit Parallel-Out Serial Shift Register

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MM74C164 8-Bit Parallel-Out Serial Shift Register

October 1987 Revised January 2004

MM74C164 8-Bit Parallel-Out Serial Shift Register
General Description
The MM74C164 shift registers are a monolithic complementary MOS (CMOS) integrated circuit constructed with N- and P-channel enhancement transistors. These 8-bit shift registers have gated serial inputs and clear. Each register bit is a D-type master/slave flip-flop. A high-level input enables the other input which will then determine the state of the flip-flop. Data is serially shifted in and out of the 8-bit register during the positive going transition of clock pulse. Clear is independent of the clock and accomplished by a low level at the clear input. All inputs are protected against electrostatic effects.

Features
s Supply voltage range: 3V to 15V drive 2 LPTTL loads s Tenth power TTL compatible: s Low power: 50 nW (typ.) s High noise immunity: 0.45 VCC (typ.) s Medium speed operation: 0.8 MHz (typ.) with 10V supply

Applications
Data terminals Instrumentation Medical electronics Alarm systems Industrial electronics Remote metering Computers

Ordering Code:
Order Number MM74C164M MM74C164N 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

Connection Diagram

Truth Table
Serial Inputs A and B Inputs tn A 1 0 1 0 B 1 1 0 0 Output tn 1 QA 1 0 0 0

Top View

2004 Fairchild Semiconductor Corporation

DS005896

www.fairchildsemi.com