Texas Instruments CD74HC191M Counters and Dividers
SYNCHRONOUS UP/DOWN COUNTER
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
CD74HC191M
Series
Base Model
Detailed Description
High-speed CMOS logic presettable synchronous 4-bit binary up/down counters feature bidirectional counting and positive edge clock triggering. Operating from 2V to 6V, these counters offer a maximum frequency of 35MHz and a propagation delay of 315ns. Packaged in a 16-SOIC with gold contact plating, the surface-mount component is RoHS compliant and operates across a wide temperature range of -55°C to 125°C.
Package
SOIC
Lifecycle Status
Obsolete
RoHS State
RoHS Compliant
Datasheet
CD74HC191M Datasheet
Quick Jump:
Technical Specifications
Texas Instruments CD74HC191M Counters and Dividers technical specifications.
General
Series
74HC
RoHS
Yes
Package / Case
16-SOIC
Mounting Type
Surface Mount
Operating Temperature
-55°C ~ 125°C
Supply Voltage
2 V ~ 6 V
Lifecycle Status
Obsolete
Package
SOIC
Clock Edge Trigger Type
Positive Edge
Contact Plating
Gold
Alternate Parts Comparison (CD74HC191M vs CD74HC4051MM96EP vs CD74HC08QM96Q1 vs CD74HC125QM96G4Q1)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Lifecycle Status | Obsolete | Active | Active | Active |
| Series | 74HC | 74HC | 74HC | -- |
| Package / Case | 16-SOIC | SOIC | SOIC | -- |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | -- |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C (TA) | -40°C ~ 125°C | -- |
| Supply Voltage | 2 V ~ 6 V | 2 V ~ 6 V | 5 V | -- |
| RoHS | Yes | Yes | Yes | -- |
| Contact Plating | Gold | Gold | Gold | -- |
| Lead Free | Lead Free | Lead Free | Lead Free | -- |
| Logic Function | Counter | Multiplexer, Demultiplexer | AND GATE | -- |
| Package Quantity | 40 | 1 | 1 | -- |
| Propagation Delay | 315ns | 60 ns | 15 ns | -- |
| Action |
Texas Instruments CD74HC191M Counters and Dividers Overview
High-speed CMOS logic presettable synchronous 4-bit binary up/down counters feature bidirectional counting and positive edge clock triggering. Operating from 2V to 6V, these counters offer a maximum frequency of 35MHz and a propagation delay of 315ns. Packaged in a 16-SOIC with gold contact plating, the surface-mount component is RoHS compliant and operates across a wide temperature range of -55°C to 125°C.
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