SN74LV163APWRG4

Counter Dividers Overview

The SN74LV163APWRG4 is a 4-bit synchronous binary counter from Texas Instruments, operating within a 2V to 5.5V supply voltage range. It features internal carry look-ahead for high-speed counting and supports mixed-mode voltage operation on all ports. The device includes a ripple-carry output (RCO) for n-bit cascading and offers synchronous parallel loading and clearing functions. Designed with Ioff circuitry, it supports partial-power-down mode to prevent damaging backflow currents. The component is housed in a 16-pin TSSOP package.

Counter Dividers Feature Summary

• Synchronous 4-bit binary counting with simultaneous flip-flop clocking to eliminate output spikes
• Internal carry look-ahead circuitry enables fast n-bit cascading without additional gating
• Supports mixed-mode voltage operation across all input and output ports
• Ioff circuitry facilitates partial-power-down applications by disabling outputs

Counter Dividers Applications

• High-speed synchronous counting designs
• n-bit cascaded counter systems
• Partial-power-down mode applications

Counter Dividers Procurement Notes

Verify the specific ordering suffix 'G4' against the manufacturer's current Package Option Addendum to confirm RoHS compliance status and lead finish specifications. Ensure the selected variant matches the required environmental category and moisture sensitivity level for the intended assembly process. Cross-reference the active production status directly with official documentation before finalizing procurement.

Counter Dividers Selection Notes

Select this component when a 4-bit synchronous binary counter with internal carry look-ahead is required for high-speed applications. It is suitable for designs needing mixed-mode voltage compatibility and support for partial-power-down modes via Ioff circuitry. Verify that the 16-pin TSSOP package dimensions align with the PCB layout constraints and thermal requirements of the target system.

Counter Dividers Part Context

This part belongs to the SN74LV163A family of 4-bit synchronous binary counters manufactured by Texas Instruments. The 'PW' suffix indicates the 16-pin Thin Shrink Small-Outline Package (TSSOP). The 'G4' suffix denotes a specific manufacturing variant compliant with certain environmental standards. This series is designed for low-voltage CMOS logic applications requiring reliable synchronous operation.

Counter Dividers Replacement Considerations

SN74LV163ADBR

Counter Dividers FAQ

How does the SN74LV163APWRG4 handle parallel data loading?

Parallel loading is performed synchronously. A low level at the LOAD input disables the counter, causing the outputs to match the setup data on the next rising edge of the clock pulse.

What is the function of the RCO pin?

The Ripple-Carry Output (RCO) provides a high-level pulse when the count reaches its maximum value and ENT is high. This signal is used to enable successive cascaded stages in n-bit applications.