64 ?? 36 ?? 2 CLOCKED BIDIRECTIONAL FIRST-IN, FIRST-OUT MEMORY

The SN74ABT3612 is a high-speed, low-power BiCMOS bidirectional clocked FIFO memory. It supports Clock frequencies up to 67 MHz and has read access times as fast as 10 ns. Two independent 64 36 dual-port SRAM FIFOs in this device Buffer data in opposite directions. Each FIFO has flags to indicate empty and full conditions and two programmable flags (almost-full and almost-empty) 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. Parity is checked passively on each port and CAN be ignored if not desired. Parity generation CAN be selected for data read from each port. Two or more devices CAN be used in parallel to create wider datapaths. The SN74ABT3612 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 full flag (FFA, FFB) and almost-full (AFA, AFB) flag of a FIFO are two-stage synchronized to the port Clock that writes data to its array. The empty flag (EFA, EFB) and almost-empty (AEA, AEB) flag of a FIFO are two-stage synchronized to the port Clock that reads data from its array. By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74ABT3612-15PQG4 Texas Instruments 64X36 BI-DIRECTIONAL FIFO, 10ns, PQFP132, GREEN, PLASTIC, BQFP-132
SN74ABT3612-30PQ Texas Instruments 64 x 36 x 2 bidirectional synchronous FIFO memory 132-BQFP 0 to 70
SN74ABT3612-20PCBR Texas Instruments 64X36 BI-DIRECTIONAL FIFO, 12ns, PQFP120, GREEN, PLASTIC, HLQFP-120
SN74ABT3612-15PCB Texas Instruments 64 x 36 x 2 bidirectional synchronous FIFO memory 120-HLQFP 0 to 70
SN74ABT3612-30PCB Texas Instruments 64X36 BI-DIRECTIONAL FIFO, 15ns, PQFP120, GREEN, PLASTIC, HLQFP-120
SN74ABT3612-15PQR Texas Instruments 64X36 BI-DIRECTIONAL FIFO, 10ns, PQFP132, GREEN, PLASTIC, BQFP-132
SN74ABT3612-20PQR Texas Instruments 64X36 BI-DIRECTIONAL FIFO, 12ns, PQFP132, GREEN, PLASTIC, BQFP-132
SN74ABT3612-20PQ Texas Instruments 64 x 36 x 2 bidirectional synchronous FIFO memory 132-BQFP 0 to 70
SN74ABT3612-30PQR Texas Instruments 64X36 BI-DIRECTIONAL FIFO, 15ns, PQFP132, GREEN, PLASTIC, BQFP-132
SN74ABT3612-15PCBR Texas Instruments 64X36 BI-DIRECTIONAL FIFO, 10ns, PQFP120, GREEN, PLASTIC, HLQFP-120
SN74ABT3612 's PackagesSN74ABT3612 's pdf datasheet



SN74ABT3612 Pinout, Pinouts
SN74ABT3612 pinout,Pin out
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