256 X 18 Synchronous FIFO Memory

The SN74ACT7805 is a 256-word 18-bit clocked FIFO suited for buffering asynchronous data paths up to 67-MHz Clock rates and 12-ns access
times. Two devices CAN be configured for bidirectional data buffering without additional Logic Multiple distributed VCC and GND pins, along with Texas Instruments patented output edge control (OECTM) circuit, dampen simultaneous switching noise.
The write Clock (WRTCLK) and read Clock (RDCLK) are free running and CAN be asynchronous or coincident. Data is written to memory on the rising edge of WRTCLK when WRTEN1 is high, WRTEN2 is low, and IR is high. Data is read from memory on the rising edge of RDCLK when RDEN, OE1, and OE2 are low and OR is high. The first word written to memory is clocked through to the output Buffer regardless of the RDEN, OE1, and OE2 levels. The OR flag indicates that valid data is present on the output Buffer
The FIFO CAN be reset asynchronously to WRTCLK and RDCLK. RESET must be asserted while at least four WRTCLK and four RDCLK rising edges occur to clear the synchronizing Registers Resetting the FIFO initializes the input-ready (IR), output-ready (OR), and half-full (HF) flags low and the almost-full/almost-empty (AF/AE) flag high. The FIFO must be reset upon power up.
The SN74ACT7805 is characterized for operation from 0C to 70C.
By Texas Instruments
Part Manufacturer Description Datasheet Samples
SN74ACT7805-40DLR Texas Instruments 256X18 OTHER FIFO, 20ns, PDSO56, GREEN, PLASTIC, SSOP-56
SN74ACT7805-15DLR Texas Instruments 256 x 18 synchronous FIFO memory 56-SSOP 0 to 70
SN74ACT7805-25DL Texas Instruments 256 x 18 synchronous FIFO memory 56-SSOP 0 to 70
SN74ACT7805-20DLR Texas Instruments 256 X 18 OTHER FIFO, 13 ns, PDSO56, GREEN, PLASTIC, SSOP-56
SN74ACT7805-25DLR Texas Instruments 256X18 OTHER FIFO, 15ns, PDSO56, GREEN, PLASTIC, SSOP-56
SN74ACT7805DL Texas Instruments 256X18 OTHER FIFO, PDSO56
SN74ACT7805-40DL Texas Instruments 256 x 18 synchronous FIFO memory 56-SSOP 0 to 70
SN74ACT7805-15DL Texas Instruments 256 x 18 synchronous FIFO memory 56-SSOP 0 to 70
SN74ACT7805DLR Texas Instruments 256X18 OTHER FIFO, PDSO56
SN74ACT7805-20DL Texas Instruments 256X18 OTHER FIFO, 13ns, PDSO56, GREEN, PLASTIC, SSOP-56
SN74ACT7805 's PackagesSN74ACT7805 's pdf datasheet
1M7805-15DLG4 SSOP
SN74ACT7805-15DL SSOP
SN74ACT7805-15DLR SSOP
SN74ACT7805-20DL SSOP
SN74ACT7805-20DLR SSOP
SN74ACT7805-25DL SSOP
SN74ACT7805-25DLR SSOP
SN74ACT7805-40DL SSOP
SN74ACT7805-40DLR SSOP




SN74ACT7805 Pinout, Pinouts
SN74ACT7805 pinout,Pin out
This is one package pinout of SN74ACT7805,If you need more pinouts please download SN74ACT7805's pdf datasheet.

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