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HD74AC166 - 8-bit Shift Register

Description

The HD74AC166/HD74ACT166 is an 8-bit, serial or parallel-in, serial-out shift register using edge triggered D-type flip-flops.

Serial and parallel entry are synchronous, with state changes initiated by the rising edge of the clock.

Features

  • Outputs Source/Sink 24 mA.
  • HD74ACT166 has TTL-Compatible Inputs Pin Arrangement DS 1 P0 2 P1 3 P2 4 P3 5 CP2 6 CP1 7 GND 8 (Top view) 16 VCC 15 PE 14 P7 13 Q7 12 P6 11 P5 10 P4 9 MR HD74AC166/HD74ACT166 Logic Symbol 15 2 3 4 5 10 11 12 14 PE P0 P1 P2 P3 P4 P5 P6 P7 1 7 6 1 2 DS CP MR Q7 9 13 VCC=Pin16 GND=Pin8 Pin Names CP1, CP2 DS PE P 0 to P7 MR Q7 Clock Pulse Inputs (Active Rising Edge) Serial Data Input Parallel Enable Input (Active Low) Parallel Data Inputs Asynch.

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📁 Similar Datasheet

Part Number Description Manufacturer
HD74AC166 8-bit Shift Register Renesas
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Other Datasheets by Hitachi Semiconductor (now Renesas)

Part Number Description
HD74AC164 Serial-In/ Parallel-Out Shift Register
HD74AC165 Parallel-Load 8-bit Shift Register
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HD74AC112 Dual JK Negative Edge-Triggered Flip-Flop
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Full PDF Text Transcription

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HD74AC166/HD74ACT166 8-bit Shift Register Description The HD74AC166/HD74ACT166 is an 8-bit, serial or parallel-in, serial-out shift register using edge triggered D-type flip-flops. Serial and parallel entry are synchronous, with state changes initiated by the rising edge of the clock. An asynchronous Master Reset overrides other inputs and clears all flip-flops. The circuit can be clocked from two sources or one CP input can be used to trigger the other.
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