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74HC161D - Presettable synchronous 4-bit binary counter

Download the 74HC161D datasheet PDF. This datasheet also covers the 74HC161 variant, as both devices belong to the same presettable synchronous 4-bit binary counter family and are provided as variant models within a single manufacturer datasheet.

Description

The 74HC161 is a synchronous presettable binary counter with an internal look-head carry.

Synchronous operation is provided by having all flip-flops clocked simultaneously on the positivegoing edge of the clock (CP).

The outputs (Q0 to Q3) of the counters may be preset HIGH or LOW.

Features

  • Wide supply voltage range from 2.0 V to 6.0 V.
  • CMOS low power dissipation.
  • High noise immunity.
  • Latch-up performance exceeds 100 mA per JESD 78 Class II Level B.
  • Complies with JEDEC standards:.
  • JESD8C (2.7 V to 3.6 V).
  • JESD7A (2.0 V to 6.0 V).
  • CMOS input levels.
  • Synchronous counting and loading.
  • 2 count enable inputs for n-bit cascading.
  • Asynchronous reset.
  • Positive-edge triggered clock.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (74HC161-nexperia.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number 74HC161D
Manufacturer Nexperia
File Size 274.99 KB
Description Presettable synchronous 4-bit binary counter
Datasheet download datasheet 74HC161D Datasheet

📁 Similar Datasheet

Part Number Description Manufacturer
74HC161 4-BIT SYNCHRONOUS BINARY COUNTERS Texas Instruments
74HC161 Presettable synchronous 4-bit binary counter Philips
74HC162 Presettable synchronous BCD decade counter Philips
74HC163 Presettable synchronous 4-bit binary counter Philips
74HC164 8-Bit Parallel-Out Serial Shift Registers Texas Instruments

Other Datasheets by Nexperia

Part Number Description
74HC161 Presettable synchronous 4-bit binary counter
74HC161-Q100 Presettable synchronous 4-bit binary counter
74HC160 Presettable synchronous BCD decade counter
74HC160D Presettable synchronous BCD decade counter
74HC163 Presettable synchronous 4-bit binary counter

Full PDF Text Transcription

Click to expand full text
74HC161 Presettable synchronous 4-bit binary counter; asynchronous reset Rev. 5 — 16 March 2021 Product data sheet 1. General description The 74HC161 is a synchronous presettable binary counter with an internal look-head carry. Synchronous operation is provided by having all flip-flops clocked simultaneously on the positivegoing edge of the clock (CP). The outputs (Q0 to Q3) of the counters may be preset HIGH or LOW. A LOW at the parallel enable input (PE) disables the counting action and causes the data at the data inputs (D0 to D3) to be loaded into the counter on the positive-going edge of the clock. Preset takes place regardless of the levels at count enable inputs (CEP and CET).
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