SN74ACT7807-40PAG

FIFOs Memory Overview

The SN74ACT7807-40PAG is a 2048-word by 9-bit clocked first-in, first-out memory device manufactured using low-power advanced CMOS technology. It supports data rates up to 67 MHz with fast access times of 12 ns under a 50-pF load. The component features independent write and read clocks that can be asynchronous or coincident. It includes programmable almost-full/almost-empty flags, input-ready, output-ready, and half-full status indicators. The device offers 3-state outputs and is available in 44-pin plastic leaded chip carrier and 64-pin thin quad flat packages.

FIFOs Memory Feature Summary

• Supports free-running asynchronous or coincident write and read clocks for synchronized data processing
• Provides programmable almost-full/almost-empty flag thresholds alongside standard input-ready, output-ready, and half-full status indicators
• Enables easy expansion in both word width and word depth through cascading capabilities
• Features 3-state outputs with noninverting data paths relative to inputs

FIFOs Memory Applications

• High-speed data buffering between asynchronous system domains
• Parallel data interface synchronization in digital communication systems
• Memory depth expansion in embedded controller architectures
• Word-width expansion for multi-bit data path processing

FIFOs Memory Procurement Notes

Verify the specific suffix -40PAG corresponds to the required speed grade and package type during procurement. Confirm the operating temperature range matches the application environment, as this variant is characterized for 0°C to 70°C. Ensure supply voltage levels align with the recommended 4.5 V to 5.5 V range for proper logic level compatibility. Check for any recent production data revisions that may affect pinout or electrical characteristics.

FIFOs Memory Selection Notes

Select this component when a fixed 2048-word depth and 9-bit width are required without external configuration. Choose the PAG package for applications needing a 64-pin thin quad flat form factor. Consider the -40 speed grade if system timing margins require the slower 25 MHz maximum frequency limit compared to faster variants. Evaluate power dissipation requirements against the specified active current consumption at the target operating frequency.

FIFOs Memory Part Context

This part belongs to the SN74ACT series of high-speed CMOS logic devices from Texas Instruments. It is specifically designed as a FIFO buffer within the 74ACT family, offering compatibility with standard TTL logic levels while utilizing advanced CMOS technology for lower power consumption. The device serves as a specialized memory interface solution distinct from general-purpose logic gates or standard SRAM components.

FIFOs Memory Replacement Considerations

Public confirmed substitute part numbers include SN74ACT7807-15PAG, SN74ACT7807-20PAG, and SN74ACT7807-25PAG for different speed grades. Other package options such as FN (44-pin PLCC) and PM (64-pin TQFP) are available for the same functional core. Verify pin compatibility and electrical specifications before substituting with other manufacturers' FIFO devices.