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Product Detailed Parameters
- Description：IC BINARY COUNTER 12-BIT 16SO
- Series：74HC
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Logic Type：Binary Counter
- Direction：Up
- Number of Elements：1
- Number of Bits per Element：12
- Reset：Asynchronous
- Timing：Asynchronous
- Count Rate：33 MHz
- Trigger Type：Negative Edge
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-SOIC (0.209", 5.30mm Width)
- Supplier Device Package：16-SO
- Voltage - Supply：2 V ~ 6 V
- Grade：-
- Qualification：-
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Overview
The SN74HC4040ANSR is a 12-bit asynchronous binary counter from the Texas Instruments 74HC series. It features a single element with 12 bits, operating on negative edge triggering and up-counting direction. The device supports an asynchronous reset and functions within a supply voltage range of 2 V to 6 V. It is rated for operation between -40°C and +85°C. Packaged in a 16-SOIC surface-mount format, it offers a typical counting rate of 33 MHz.
Feature Summary
- Provides 12-bit asynchronous binary counting capability with up-counting direction.
- Features an asynchronous reset function for immediate state clearing.
- Utilizes negative edge-triggered flip-flops for precise timing control.
- Operates reliably across a wide industrial temperature range.
Applications
- Digital frequency division circuits
- Event counting systems
- Timing sequence generation
Procurement Notes
Verify the specific suffix ANSR indicates the tape-and-reel packaging configuration. Confirm the 16-SOIC package dimensions match your PCB footprint requirements. Ensure the 2 V to 6 V supply voltage aligns with your system design. Check for RoHS compliance status if required by your manufacturing standards.
Selection Notes
Select this component when a 12-bit asynchronous counter is required in a surface-mount form factor. The HC logic family ensures compatibility with standard CMOS interfaces. Consider the 33 MHz maximum frequency against your clock speed needs. Verify that the asynchronous reset behavior fits your control logic requirements.
Part Context
This part belongs to the SN74HC4040 family of 12-bit asynchronous binary counters manufactured by Texas Instruments. The HC series denotes high-speed CMOS technology, offering performance comparable to LS TTL but with lower power consumption. The device is designed for general-purpose digital counting applications requiring robust noise immunity.
Replacement Considerations
Direct substitutes include SN74HC4040DR and SN74HC4040DT. Alternative packages like SN74HC4040PWG4 are available but discontinued. Cross-vendor equivalents such as MC74HC4040ADTR2G may serve as functional replacements if pinouts and electrical characteristics are verified.
