SN74V235-7PAG

Overview

The SN74V235-7PAG is a synchronous first-in, first-out (FIFO) memory device manufactured by Texas Instruments. It features an 18-bit data bus width and a storage capacity of 36 kbit, organized as 2048 x 18 bits. The component supports maximum clock frequencies up to 133 MHz with an access time of 5 ns. It operates within a supply voltage range of 3 V to 3.6 V and functions at temperatures between 0°C and +70°C. The device is housed in a TQFP-64 package.

Feature Summary

• Supports asynchronous or coincident read and write clocks for flexible interface control
• Features programmable almost-empty and almost-full flags with default settings
• Offers single or double register-buffered empty and full flags
• Provides easily expandable depth and width capabilities

Applications

• DSP-to-processor communication
• DSP-to-analog front end buffering
• Network communications
• Video processing systems
• Data communications interfaces

Procurement Notes

Verify the specific suffix '7PAG' against official Texas Instruments documentation to confirm pinout and electrical characteristics match your design requirements. Ensure the operating temperature range aligns with your system environment. Confirm RoHS compliance status through current manufacturer datasheets before finalizing procurement specifications.

Selection Notes

Select this component when an 18-bit wide synchronous FIFO with 2048-word depth is required. Consider the 133 MHz maximum clock frequency and 5 ns access time for high-speed data buffering needs. Evaluate the 3.3-V power supply requirement and ensure compatibility with 5-V tolerant inputs if interfacing with legacy logic families.

Part Context

This part belongs to the SN74V2x5 series of DSP-SYNC FIFO memories from Texas Instruments. The series includes variants with different memory depths, such as the SN74V215 (512 words), SN74V225 (1024 words), and SN74V245 (4096 words). All share similar architectural features but differ in storage capacity and timing parameters.

Replacement Considerations

Direct substitutes include other SN74V235 variants with different speed grades, such as SN74V235-10PAG or SN74V235-15PAG. Verify that the replacement's clock frequency and access time meet or exceed the original specifications.