512 X 36 X 2 Bidirectional Synchronous FIFO Memory

The SN74ACT3632 !----> is a high-speed, low-power CMOS clocked bidirectional FIFO memory. It supports Clock frequencies up to 67 MHz and has read access times as fast as 11 ns. Two independent 512 36 dual-port SRAM FIFOs on the chip Buffer data in opposite directions. Each FIFO has flags to indicate empty and full conditions and two programmable flags, almost full (AF) and almost empty (AE) to indicate when a selected number of words is stored in memory. Communication between each port CAN bypass the FIFOs via two 36-bit mailbox Registers Each mailbox Register has a flag to signal when new mail has been stored. Two or more devices CAN be used in parallel to create wider datapaths.
The SN74ACT3632 is a clocked FIFO which means each port employs a synchronous Interface All data transfers through a port are gated to the low-to-high transition of a port Clock by enable signals. The Clocks for each port are independent of one another and CAN be asynchronous or coincident. The enables for each port are arranged to provide a simple bidirectional Interface between Microprocessors and/or buses with synchronous control.
The input-ready (IRA, IRB) flag and almost-full (AFA, AFB) flag of a FIFO are two-stage synchronized to the port Clock that writes data to its array. The output-ready (ORA, ORB) flag and almost-empty (AEA, AEB) flag of a FIFO are two-stage synchronized to the port Clock that reads data from its array. Offset values for the AF and AE flags of both FIFOs CAN be programmed from port A.
The SN74ACT3632 is characterized for operation from 0C to 70C.
For more information on this device family, see the following application reports: FIFO Mailbox-Bypass Registers: Using Bypass Registers to Initialize DMA Control (literature number SCAA007) Interfacing TI Clocked FIFOs With TI Floating-Point Digital Signal Processors (literature number SCAA005) Metastability Performance of Clocked FIFOs (literature number SCZA004)
By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74ACT3632-20PQR Texas Instruments 512 X 36 BI-DIRECTIONAL FIFO, 13 ns, PQFP132, PLASTIC, QFP-132
SN74ACT3632-30PQR Texas Instruments 512 X 36 BI-DIRECTIONAL FIFO, 15 ns, PQFP132, PLASTIC, QFP-132
SN74ACT3632-30PCBR Texas Instruments 512X36 BI-DIRECTIONAL FIFO, 15ns, PQFP120, TQFP-120
SN74ACT3632-30PQ Texas Instruments 512 X 36 BI-DIRECTIONAL FIFO, 15 ns, PQFP132, PLASTIC, QFP-132
SN74ACT3632-15PCB Texas Instruments 512 x 36 x 2 bidirectional synchronous FIFO memory 120-HLQFP 0 to 70
SN74ACT3632-30PCB Texas Instruments 512X36 BI-DIRECTIONAL FIFO, 15ns, PQFP120, TQFP-120
SN74ACT3632-15PQ Texas Instruments 512 x 36 x 2 bidirectional synchronous FIFO memory 132-BQFP 0 to 70
SN74ACT3632-20PCBR Texas Instruments 512X36 BI-DIRECTIONAL FIFO, 13ns, PQFP120, TQFP-120
SN74ACT3632-15PQR Texas Instruments 512 X 36 BI-DIRECTIONAL FIFO, 11 ns, PQFP132, PLASTIC, QFP-132
SN74ACT3632-20PQ Texas Instruments 512 x 36 x 2 bidirectional synchronous FIFO memory 132-BQFP 0 to 70
SN74ACT3632 's PackagesSN74ACT3632 's pdf datasheet
SN74ACT3632-15PCB HLQFP
SN74ACT3632-15PQ BQFP
SN74ACT3632-15PQG4 BQFP
SN74ACT3632-20PCB HLQFP
SN74ACT3632-20PQ BQFP
SN74ACT3632-30PCB HLQFP
SN74ACT3632-30PQ BQFP




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