Texas Instruments SN74HC161PWT Counters and Dividers
4-Bit Synchronous Binary Counter, CMOS technology, operating from 2V to 6V with a typical 5V supply.

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
SN74HC161PWT
Series
Base Model
Detailed Description
4-Bit Synchronous Binary Counter, CMOS technology, operating from 2V to 6V with a typical 5V supply. Features positive edge clock triggering, asynchronous reset, and unidirectional up-counting. Achieves a maximum frequency of 44MHz with a propagation delay of 275ns. Packaged in a 16-TSSOP for surface mounting, operating across a -40°C to 85°C temperature range. RoHS compliant.
Package
TSSOP
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
SN74HC161PWT Datasheet
Quick Jump:
Technical Specifications
Texas Instruments SN74HC161PWT Counters and Dividers technical specifications.
General
Series
74HC
RoHS
Yes
Package / Case
16-TSSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Supply Voltage
5V
Package
TSSOP
Clock Edge Trigger Type
Positive Edge
Direction
Up, Unidirectional
Frequency
44MHz
Alternate Parts Comparison (SN74HC161PWT vs SN74HC4851DR vs SN74HC4851QDRG4Q1 vs SN74HC151QDRQ1)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 16-TSSOP | 16-SOIC | 16-SOIC | 16-SOIC |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 125°C (TA) | -40°C ~ 125°C (TA) | -40°C ~ 125°C |
| Supply Voltage | 5V | -- | -- | 2V ~ 6V |
| Series | 74HC | -- | -- | -- |
| Frequency | 44MHz | -- | -- | -- |
| RoHS | Yes | -- | -- | -- |
| Clock Edge Trigger Type | Positive Edge | -- | -- | -- |
| Count Rate | 36 MHz | -- | -- | -- |
| Direction | Up, Unidirectional | -- | -- | -- |
| Lead Free | Lead Free | -- | -- | -- |
| Logic Function | Counter | -- | -- | -- |
| Action |
Texas Instruments SN74HC161PWT Counters and Dividers Overview
4-Bit Synchronous Binary Counter, CMOS technology, operating from 2V to 6V with a typical 5V supply. Features positive edge clock triggering, asynchronous reset, and unidirectional up-counting. Achieves a maximum frequency of 44MHz with a propagation delay of 275ns. Packaged in a 16-TSSOP for surface mounting, operating across a -40°C to 85°C temperature range.
RoHS compliant.
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