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NTE74HC40105 IC High-Speed CMOS Register

Model:

NTE74HC40105

 | Catalog #: 55051008
Price:
$3.86
$3.86
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  • Wide power supply range: 2V to 6V
  • Balanced propagation delay and transition times
  • Standard output drives up to 15 LS−TTL loads
  • Significant power reduction compared to LS−TTL logic ICs
  • Absolute maximum ratings*:
    VCC: −0.5 to +7.0V
  • IIK, IOK: &plusnm;20mA
  • Drain current (per output), IOUT: &plusnm;35mA
  • DC output source or sink current (per output), IOUT: &plusnm;25mA
  • DC VCC or GND current (per pin), ICC: &plusnm;50mA
  • Tstg: −65°C to +150°C
  • RthJA: 69°C/W
  • TL: +300°C

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  • Wide power supply range: 2V to 6V
  • High-noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • Buffered inputs
  • Common 3−state output enable control
  • Bus line driving capability
  • Typical propagation delay (clock to Q): 15ns at VCC = 5V, CL = 15pF, TA = +25°C
  • Fanout (over temp range):
    Std. outputs: 10 LS−TTL loads
    Bus driver outputs: 15 LS−TTL loads
  • Absolute maximum ratings*:
    VCC: −0.5 to +7.0V
  • IIK, IOK: &plusnm;20mA
  • DC drain current (per output), IOUT: &plusnm;35mA
  • DC output source or sink current (per output), IOUT: &plusnm;25mA
  • DC VCC or GND current (per pin), ICC: &plusnm;50mA
  • TJ: +150°C
  • Tstg: −65°C to +150°C
  • RthJA: 69°C/W
  • TL: +300°C

See Full Product Description

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   Free Ground Shipping on orders over $25.  More details

Availability:

ONLINE In stock
Usually ships in 1 - 2 business days


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Product Summary

The NTE74HC40105 is a high-speed silicon gate CMOS device in a 16−Lead DIP-type package that is compatible, except for "shift−out" circuitry, with the NTE40105B. This device is a low−power first−in−out (FIFO) "elastic" storage register that can store 16 4−bit words. The NTE74HC40105 is capable of handling input and output data at different shifting rates. This feature makes it particularly useful as a buffer between asynchronous systems. Each work position in the register is clocked by a control flip−flop, which stores a marker bit. A "1" signifies that the position's data is filled and a "0" denotes a vacancy in that position. The control flip−flop detects the state of the preceding flip−flop and communicates its own status to the succeeding flip−flop. When a control flip−flop is in the "0" state and sees a "1" in the preceding flip−flop, it generates a clock pulse that transfers data from the preceding four data latches into its own four data latches and resets the preceding flip−flop to "0". The first and last control flip−flops have buffered outputs. Since all empty locations "bubble" automatically to the input end, an all valid data ripple through to the output end, the status of the first control flip−flop (DATA−IN READY) indicates if the FIFO is full, and the status of the last flip−flop (DATA−OUT READY) indicates if the FIFO contains data. As the earliest data are removed from the bottom of the data stack (the output end), all data entered later will automatically propagate (ripple) toward the output.

  • Wide power supply range: 2V to 6V
  • High-noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • Independent asynchronous inputs and outputs
  • Expandable in either direction
  • Reset capability
  • Status indicators on inputs and outputs
  • 3−state outputs
  • Shift−out independent of 3−state control
  • Fanout (over temp R): Std outputs: 10 LS−TTL loads Bus driver outputs: 15 LS−TTL loads
  • Balanced propagation delay and transition times
  • Significant power reduction compared to LS−TTL logic ICs
  • Applications:
    Bit−rate smoothing
    CPU/terminal buffering
    Data communications
  • Peripheral buffering
    Line printer input buffers
    Auto−dialers
    CRT buffer memories
  • Radar data acquisition
  • Absolute maximum ratings:*
    VCC: −0.5 to +7.0V
  • IIK, IOK: &plusnm;20mA
  • DC output source or sink current (per output), IOUT: &plusnm;25mA
  • DC VCC or GND current (per pin), ICC: &plusnm;50mA
  • TJ: +150°C
  • Tstg: −65°C to +150°C
  • RthJA: 67°C/W
  • TL: +300° C
Pricing and availability: Please note that all prices are subject to change without prior notice. Prices advertised on this site are for online orders only. Prices on some items may differ from those advertised in RadioShack stores. All merchandise may not be available at all stores, and all stores may not participate in all sales promotions. We recommend you contact the store to confirm product availability and price.

Disclaimer: * Absolute Maximum Ratings are those values beyond which damage to the device may occur. Unless otherwise specified, all voltages are referenced to GND.

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