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74ACTQ16374MTDX View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
Manufacturer
74ACTQ16374MTDX
Fairchild
Fairchild Semiconductor Fairchild
74ACTQ16374MTDX Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
Functional Description
The ACTQ16374 consists of sixteen edge-triggered flip-
flops with individual D-type inputs and 3-STATE true out-
puts. The device is byte controlled with each byte function-
ing identically, but independent of the other. The control
pins can be shorted together to obtain full 16-bit operation.
Each byte has a buffered clock and buffered Output Enable
common to all flip-flops within that byte. The description
which follows applies to each byte. Each flip-flop will store
the state of their individual D inputs that meet the setup and
hold time requirements on the LOW-to-HIGH Clock (CPn)
transition. With the Output Enable (OEn) LOW, the con-
tents of the flip-flops are available at the outputs. When
OEn is HIGH, the outputs go to the high impedance state.
Operation of the OEn input does not affect the state of the
flip-flops.
Logic Diagrams
Truth Tables
Inputs
CP1
OE1
L

L
L
L
X
H
Inputs
CP2
OE2
L

L
L
L
X
H
H HIGH Voltage Level
L LOW Voltage Level
X Immaterial
Z HIGH Impedance
LOW-to-HIGH Transition
Byte 1 (0:7)
I0–I7
H
L
X
X
I8–I15
H
L
X
X
Outputs
O0–O7
H
L
(Previous)
Z
Outputs
O8–O15
H
L
(Previous)
Z
Byte 2 (8:15)
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