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IK Semiconductor - Octal Bus Transceiver/Register

Numéro de référence IN74AC651
Description Octal Bus Transceiver/Register
Fabricant IK Semiconductor 
Logo IK Semiconductor 





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IN74AC651 fiche technique
TECHNICAL DATA
IN74AC651
Octal 3-State Bus Transceivers
and D Flip-Flops
High-Speed Silicon-Gate CMOS
The IN74AC651 is identical in pinout to the LS/ALS651,
HC/HCT651. The device inputs are compatible with standard CMOS
outputs; with pullup resistors, they are compatible with LS/ALS outputs.
These devices consists of bus transceiver circuits, D-type flip-flop,
and control circuitry arranged for multiplex transmission of data directly
from the data bus or from the internal storage registers. Direction and
Output Enable are provided to select the read-time or stored data function.
Data on the A or B Data bus, or both, can be stored in the internal D flip-
flops by low-to-high transitions at the appropriate clock pins (A-to-B
Clock or B-to-A Clock) regardless of the select or enable or enable
control pins. When A-to-B Source and B-to-A Source are in the real-time
transfer mode, it is also possible to store data without using the internal
D-type flip-flops by simultaneously enabling Direction and Output
Enable. In this configuration each output reinforces its input. Thus, when
all other data sources to the two sets of bus lines are at high impedance,
each set of bus lines will remain at its last state.
The IN74AC651 has inverted outputs.
Outputs Directly Interface to CMOS, NMOS, and TTL
Operating Voltage Range: 2.0 to 6.0 V
Low Input Current: 1.0 µA, 0.1 µA @ 25°C
High Noise Immunity Characteristic of CMOS Devices
Outputs Source/Sink 24 mA
ORDERING INFORMATION
IN74AC651N Plastic
IN74AC651DW SOIC
TA = -40° to 85° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
www.datasheet4u.comPPININ1224==GVNCCD
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