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74ACT2708

Features: 64-words by 9-bit dual port RAM organization85 MHz shift-in, 60 MHz shift-out data rate, typicalExpandable in word width onlyTTL-compatible inputsAsynchronous or synchronous operationAsynchronous master resetOutputs source/sink 8 mA3-STATE outputsFull ESD protectionInput and output pins ...

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SeekIC No. : 004249059 Detail

74ACT2708: Features: 64-words by 9-bit dual port RAM organization85 MHz shift-in, 60 MHz shift-out data rate, typicalExpandable in word width onlyTTL-compatible inputsAsynchronous or synchronous operationAsync...

74ACT2708 Data Sheet

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Part Number:
74ACT2708
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

64-words by 9-bit dual port RAM organization
85 MHz shift-in, 60 MHz shift-out data rate, typical
Expandable in word width only
TTL-compatible inputs
Asynchronous or synchronous operation
Asynchronous master reset
Outputs source/sink 8 mA
3-STATE outputs
Full ESD protection
Input and output pins directly in line for easy board layout
TRW 1030 work-alike operation


Application

• High-speed disk or tape controllers
• A/D output buffers
• High-speed graphics pixel buffer
• Video time base correction
• Digital filtering


Pinout

Connection Diagram


Specifications

Supply Voltage (VCC).................. −0.5V to +7.0V
DC Input Diode Current (IIK)
    VI = −0.5V ......................................... −20 mA
    VI = VCC + 0.5V................................. +20 mA
DC Input Voltage (VI) .........−0.5V to VCC + 0.5V
DC Output Diode Current (IOK)
    VO = −0.5V........................................  −20 mA
    VO = VCC + 0.5V +20 mA
DC Output Voltage (VO) ......−0.5V to VCC + 0.5V
DC Output Source
    or Sink Current (IO)............................ ±32 mA
DC VCC or Ground Current
    per Output Pin (ICC or IGND)............... ±32 mA
Storage Temperature (TSTG)... −65°C to +150°C
Junction Temperature (TJ)
    PDIP ......................................................140°C


Description

The 74ACT2708 is an expandable first-in, first-out memory organized as 64 words by 9 bits. An 85 MHz shift-in and 60 MHz shift-out typical data rate makes it ideal for high-speed applications. It uses a dual port RAM architecture with pointer logic to achieve the high speed with negligible fallthrough time.

Separate Shift-In (SI) and Shift-Out (SO) clocks of the 74ACT2708 control the use of synchronous or asynchronous write or read. Other controls include a Master Reset (MR) and Output Enable (OE) for initializing the internal registers and allowing the data outputs to be 3-STATE. Input Ready (IR) and Output Ready (OR) signal when the FIFO is ready for I/O operations. The status flags HF and FULL indicate when the FIFO is full, empty or half full.

The FIFO of the 74ACT2708 can be expanded to provide different word lengths by tying off unused data inputs.




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