SN74ACT3632-30PCB

Overview

The SN74ACT3632-30PCB 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 fast access times of 11 ns. The device includes programmable almost-full and almost-empty flags synchronized to port clocks, mailbox-bypass registers for direct data transfer, and microprocessor interface control logic.

Feature Summary

• Contains two independent 512 x 36 clocked FIFOs buffering data in opposite directions
• Includes mailbox-bypass registers for each FIFO to bypass memory storage
• Features programmable almost-full and almost-empty status flags
• Supports asynchronous or coincident free-running clocks for both ports

Applications

• Buffering data between microprocessors and buses with synchronous control
• Interfacing with floating-point digital signal processors
• Initializing DMA control using bypass registers

Procurement Notes

Verify the specific -30 speed grade and PCB package suffix against current manufacturer documentation. Confirm availability as this component may be discontinued or subject to long lead times. Ensure environmental operating ranges match system requirements before procurement.

Selection Notes

Select this component when designing systems requiring wide 36-bit data paths and independent clock domains. It is suitable for applications needing precise flow control via programmable flags. Consider pin compatibility with SN74ACT3622 and SN74ACT3642 if upgrading existing designs.

Part Context

This part belongs to the SN74ACT3632 family of advanced CMOS FIFO memories. It is designed for high-performance data buffering in complex digital systems. The device utilizes low-power 0.8-micron technology to ensure efficient operation while maintaining high-speed data throughput capabilities.

Replacement Considerations

The SN74ACT3632 is pin-to-pin compatible with the SN74ACT3622 and SN74ACT3642. Verify functional equivalence regarding flag synchronization and mailbox operations when substituting these parts.