Texas Instruments
Texas Instruments Incorporated (TI) is a global semiconductor powerhouse, crafts advanced analog ICs and embedded processors. Fueled by top-tier minds, TI's innovations drive tech's future, impacting 100,000+ clients.
View All Product from Texas InstrumentsThe SN74ACT72211L, SN74ACT72221L, SN74ACT72231L, and SN74ACT72241L are constructed withCMOS dual-port SRAM and are arranged as 512, 1024, 2048, and 4096 9-bit words, respectively. Internal writeand read address counters provide data throughput on a first-in, first-out (FIFO) basis. Full and empty flagsprevent memory overflow and underflow, and two programmable flags (almost full and almost empty) areprovided.The SN74ACT72211L, SN74ACT72221L, SN74ACT72231L, and SN74ACT72241L are synchronous FIFOs,which means the data input port and data output port each employ synchronous control. Write-enable (WEN1,WEN2/LD) signals allow the low-to-high transition of the write clock (WCLK) to store data in memory, andread-enable (REN1, REN2) signals allow the low-to-high transition of the read clock (RCLK) to read data frommemory. WCLK and RCLK are independent of one another and can operate asynchronously or be tied togetherfor single-clock operation.The empty-flag (EF) output is synchronized to RCLK and the full-flag (FF) output is synchronized to WCLK toindicate absolute boundary conditions. Write operations are prohibited when FF is low, and read operations areprohibited when EF is low. Two programmable flags, programmable almost empty (PAE) and programmablealmost full (PAF), can both be programmed to indicate any measure of memory fill. After reset, PAE defaultsto empty +7 and PAF defaults to full −7. Flag-offset programming control is similar to a memory write with theuse of the load (WEN2/LD) signal.These devices are suited for providing a data channel between two buses operating at asynchronous orsynchronous rates. Applications include use as rate buffers for graphics systems and high-speed queues forcommunication systems. A 9-bit-wide data path is provided for the transmission of byte data plus a parity bitor packet-framing information.The SN74ACT72211L, SN74ACT72221L, SN74ACT72231L, and SN74ACT72241L are characterized foroperation from 0°C to 70°C.
TYPE | DESCRIPTION | Select all |
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Programmable | Not Verified | |
FWFT Support | - | |
Product Status | Active | |
Retransmit Capability | - | |
Programmable Flags Support | - | |
Series | * | |
Expansion Type | - | |
Bus Directional | - | |
Current - Supply (Max) | - | |
Voltage - Supply | - | |
Access Time | - | |
Supplier Device Package | - | |
Data Rate | - | |
Package / Case | - | |
Function | - | |
Mounting Type | - | |
Memory Size | - | |
Operating Temperature | - | |
Package | Bulk |
Texas Instruments
Texas Instruments Incorporated (TI) is a global semiconductor powerhouse, crafts advanced analog ICs and embedded processors. Fueled by top-tier minds, TI's innovations drive tech's future, impacting 100,000+ clients.
View All Product from Texas InstrumentsFIFO MEM SYNC UNI-DIR 512 X 9
IC SYNC FIFO MEM 4096X18 64-TQFP
IC 32768X36 FIFO MEMORY 128LQFP
IC SYNC FIFO MEM 512X18 64-TQFP
IC MEMORY FIFO 512X18 56-SSOP
IC FIFO REGISTER 4X16 16SOIC
IC SYNC FIFO 65536X18 80QFP
FIFO, 16X5, 75NS, SYNCHRONOUS
FIFO, 256X9, 50NS, ASYNCHRONOUS
FIFO MEM ASYNC 512 X 9