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74VCX16838 Datasheet(PDF) 2 Page - Fairchild Semiconductor

Part No. 74VCX16838
Description  Low Voltage 16-Bit Selectable Register/Buffer with 3.6V Tolerant Inputs and Outputs
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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74VCX16838 Datasheet(HTML) 2 Page - Fairchild Semiconductor

   
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Connection Diagram
Truth Table
H
= HIGH Voltage Level
L
= LOW Voltage Level
X
= Immaterial (HIGH or LOW, inputs may not float)
Z
= High Impedance
Functional Description
The 74VCX16838 consists of sixteen selectable non-
inverting buffers or registers with word wide controls. Mode
functionality is selected through operation of the CP and
REGE pin as shown by the truth table. When REGE is held
at a logic “1” the device operates as a 16-bit register. Data
is transferred from In to On on the rising edge of the CP pin.
When the REGE pin is held at a logic “0” the device oper-
ates in a flow through mode and data propagates directly
from the I to the O outputs. All outputs can be 3-STATE by
holding the OE pin at a logic “1.”
Logic Diagram
Inputs
Outputs
CP
REGE
In
OE
On
HH
L
H
HL
L
L
XL
H
L
H
X
LLL
L
XXX
H
Z


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