SN74ACT3632-15PCB

Overview

The SN74ACT3632-15PCB is a high-speed, low-power CMOS clocked bidirectional FIFO memory featuring two independent 512 × 36 dual-port SRAMs. It supports clock frequencies up to 67 MHz with read access times as fast as 11 ns. The device includes programmable almost-full and almost-empty flags synchronized to respective port clocks. Each FIFO has a 36-bit mailbox-bypass register for direct data transfer. It operates from 0°C to 70°C in a 120-pin Thin Quad Flat (PCB) package.

Feature Summary

• Contains two independent 512 x 36 synchronous FIFOs buffering data in opposite directions
• Includes 36-bit mailbox-bypass registers for each FIFO to bypass the main queue
• Features programmable almost-full and almost-empty status flags synchronized to port clocks
• Supports asynchronous or coincident free-running clocks for Port A and Port B

Applications

• Buffering data between microprocessors and buses with synchronous control
• Interfacing with floating-point digital signal processors
• Initializing DMA control using bypass registers
• Creating wider datapaths by connecting multiple devices in parallel

Procurement Notes

Verify the specific ordering suffix PCB against the manufacturer's current documentation to confirm pinout compatibility and package dimensions. Ensure the component meets the required operating temperature range of 0°C to 70°C for your application environment. Cross-reference the datasheet revision date to confirm all electrical specifications and timing parameters are current.

Selection Notes

Select this component when designing systems requiring simultaneous bidirectional data flow between two independent clock domains. It is suitable for applications needing fast access times and flexible flag programming for buffer management. Consider the 120-pin PCB package constraints during layout. Verify that the system voltage levels align with the ACT logic family requirements.

Part Context

This part belongs to the SN74ACT3632 series of clocked bidirectional FIFO memories manufactured by Texas Instruments. It is designed for high-performance data buffering in complex digital systems. The device utilizes advanced CMOS technology to provide low power consumption alongside high-speed operation capabilities.

Replacement Considerations

The SN74ACT3632 is pin-to-pin compatible with the SN74ACT3622 and SN74ACT3642.