SN74ALS232BDWR

FIFOs Memory Overview

The SN74ALS232BDWR is a 64-bit asynchronous first-in, first-out (FIFO) memory organized as 16 words by 4 bits. It supports data rates up to 40 MHz with a typical fall-through time of 14 ns. The device features independent asynchronous inputs and outputs, 3-state outputs, and status monitoring via FULL and EMPTY flags. It operates within a supply voltage range of 4.5 V to 5.5 V and an operating temperature range of 0°C to 70°C.

FIFOs Memory Feature Summary

• Independent asynchronous write and read operations allow processing data at different rates in a bit-parallel format.
• Status monitoring is provided through dedicated FULL and EMPTY output flags to indicate memory state.
• Data is written on the low-to-high transition of the load-clock input and read out on the unload-clock transition.
• Cascading is supported in the word-width direction for expanded data bus applications.

FIFOs Memory Applications

• Buffering data between components operating at independent clock domains
• Asynchronous interface bridging in high-speed digital systems
• Word-width expansion through cascading configurations

FIFOs Memory Procurement Notes

Verify that the ordering suffix BDWR corresponds to the SOIC package variant rather than the standard PDIP or FN options listed in the datasheet. Confirm RoHS compliance and lead finish specifications match project requirements. Ensure the component meets the specified 0°C to 70°C operating temperature range for the intended application environment.

FIFOs Memory Selection Notes

Select this component when asynchronous FIFO buffering with 4-bit word width is required. The ALS logic family provides high speed suitable for data rates up to 40 MHz. Consider the 3-state output capability for bus sharing applications. Verify that the specific package type matches the PCB layout constraints and thermal management needs of the design.

FIFOs Memory Part Context

This part belongs to the Texas Instruments SN74ALS232B series of asynchronous FIFO memories. The series offers 64-bit storage capacity designed for high-speed parallel data transfer. The ALS technology ensures fast propagation delays and low power consumption compared to standard TTL families. The device is characterized for commercial temperature operation.

FIFOs Memory Replacement Considerations

SN74ALS232BN