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SN74HC645

Features:  True Logic High-Current 3-State Outputs Can Drive up to 15 LSTTL Loads Package Options Include Plastic Small-Outline (DW) and Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPsPinoutSpecificationsSupply voltage range, VCC . . ...

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SeekIC No. : 004498964 Detail

SN74HC645: Features:  True Logic High-Current 3-State Outputs Can Drive up to 15 LSTTL Loads Package Options Include Plastic Small-Outline (DW) and Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and...

SN74HC645 Data Sheet

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Part Number:
SN74HC645
Supply Ability:
5000

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

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Product Details

Description



Features:

 True Logic
 High-Current 3-State Outputs Can Drive up to 15 LSTTL Loads
 Package Options Include Plastic Small-Outline (DW) and Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs


Pinout

Connection Diagram


Specifications

Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to 7 V
Input clamp current, IIK (VI < 0 or VI > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . .±20 mA
Output clamp current, IOK (VO < 0 or VO > VCC) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . ..±20 mA
Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .±35 mA
Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±70 mA
Package thermal impedance, JA (see Note 2): DW package . . . . . . . . . . . . . . . . . . . . . . . .97°C/W
                                                                           N package . . . . . . . . . . . . . . . . . . . . . . . . . .67°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .65°C to 150°C
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51, except for through-hole packages, which use a trace length of zero.


Description

These octal bus transceivers of the SN74HC645 are designed for asynchronous two-way communication between data buses. These devices transmit data from the A bus to the B bus or from the B bus to the A bus, depending upon the level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses are effectively isolated.

The SN54HC645 is characterized for operation over the full military temperature range of 55°C to 125°C. The SN74HC645 is characterized for operation from 40°C to 85°C.




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