JM38510/38002B2A

Counter Dividers Overview

JM38510/38002B2A is a military-grade synchronous 4-bit binary counter manufactured by Texas Instruments. It belongs to the ALS logic family and features internal carry look-ahead circuitry for high-speed counting applications. The device supports synchronous presetting, asynchronous clear, and ripple-carry cascading via ENP, ENT, and RCO inputs. It operates over the full military temperature range of -55 °C to 125 °C and is housed in a 20-pin Ceramic Quad Flat Package (CFP).

Counter Dividers Feature Summary

• Synchronous operation with simultaneous flip-flop clocking to eliminate output counting spikes.
• Internal carry look-ahead circuitry enables fast n-bit cascading without additional gating.
• Fully programmable with synchronous preset capability for any value between 0 and 15.
• Asynchronous clear function sets all outputs low regardless of clock or enable states.

Counter Dividers Applications

• High-speed synchronous counting designs
• n-bit counter cascading systems
• Military and defense electronic equipment
• Frequency division circuits

Counter Dividers Procurement Notes

Verify that the component meets MIL-PRF-38535 Class B specifications. Confirm the package type matches the required footprint. Ensure the manufacturer source is authorized. Check for QML certification if required for defense applications. Validate the operating temperature range against system requirements.

Counter Dividers Selection Notes

Select this part for applications requiring robust military-grade performance and high-speed binary counting. The ALS family offers a balance of speed and power consumption suitable for complex digital systems. Consider the asynchronous clear feature for immediate reset needs. Verify compatibility with existing logic families regarding voltage levels and drive capabilities.

Counter Dividers Part Context

This component is part of the SN54ALS161B series, which includes synchronous 4-bit binary counters. The JM38510 designation indicates compliance with specific military standards. It shares functional similarities with commercial variants but adheres to stricter reliability and environmental testing protocols defined by Texas Instruments for aerospace and defense use.

Counter Dividers Replacement Considerations

SNJ54ALS161BFK is a verified equivalent part number within the same product family offering identical functionality and pinout configuration.