SN74LV163APWT

Counter Dividers Overview

The SN74LV163APWT is a 4-bit synchronous binary counter from the Texas Instruments LV logic family, housed in a 16-pin TSSOP package. It operates within a supply voltage range of 2V to 5.5V and supports an operating temperature range of -40°C to +85°C. The device features internal carry look-ahead for high-speed counting, synchronous parallel load capability, and a ripple-carry output (RCO) for cascading. Maximum propagation delay is 9.5ns at 5V with a 15pF load.

Counter Dividers Feature Summary

• Synchronous operation eliminates output counting spikes associated with ripple-clock counters
• Internal carry look-ahead circuitry enables fast n-bit cascading without additional gating
• Supports partial-power-down mode via Ioff circuitry to prevent damaging backflow current
• Fully programmable preset allows setting outputs to any value between 0 and 15

Counter Dividers Applications

• High-speed digital counting applications requiring precise timing
• Cascaded multi-stage binary counting systems
• Mixed-mode voltage operation environments
• Partial-power-down system designs

Counter Dividers Procurement Notes

Verify the specific ordering suffix 'PWR' confirms the TSSOP-16 package and reel packaging configuration. Confirm RoHS compliance status and lead finish details against the latest TI Package Option Addendum. Ensure the active production status aligns with long-term availability requirements before finalizing procurement plans.

Counter Dividers Selection Notes

Select this component when synchronous counting with minimal output glitches is required. The internal carry look-ahead makes it suitable for high-frequency designs compared to asynchronous alternatives. Verify that the 2V to 5.5V supply range matches the target system voltage and that the TSSOP-16 footprint fits the PCB layout constraints.

Counter Dividers Part Context

This part belongs to the SN74LV163A series of 4-bit synchronous binary counters. The 'LV' designation indicates compatibility with low-voltage CMOS standards while maintaining performance across a wide voltage spectrum. The 'PWT' suffix specifically denotes the TSSOP surface-mount package variant intended for automated assembly processes.

Counter Dividers Replacement Considerations

SN74LV163ADBR

Counter Dividers FAQ

How does the clear function operate on this device?

The clear function is synchronous. A low level at the CLR input sets all four flip-flop outputs low after the next rising edge of the clock signal.

What is the purpose of the RCO pin?

The Ripple-Carry Output (RCO) provides a high-level pulse when the count reaches its maximum value, enabling successive cascaded stages without additional gating.