74VCX16839MTD 查看數據表（PDF） - Fairchild Semiconductor
零件编号
产品描述 (功能)
生产厂家
74VCX16839MTD
Fairchild Semiconductor
74VCX16839MTD Datasheet PDF : 7 Pages
| |||
Connection Diagram
Logic Diagram
Truth Table
Inputs
Outputs
CLK
REGE
In
↑
H
H
↑
H
L
X
L
H
X
L
L
X
X
X
H = Logic HIGH
L = Logic LOW
X = Don’t Care, but not floating
Z = High Impedance
↑ = LOW-to-HIGH Clock Transition
OE
On
L
H
L
L
L
H
L
L
H
Z
Functional Description
The 74VCX16839 consists of twenty selectable non-invert-
ing buffers or registers with word wide modes. Mode func-
tionality is selected through operation of the CLK and
REGE pin as shown by the truth table. When REGE is held
at a logic HIGH the device operates as a 20-bit register.
Data is transferred from In to On on the rising edge of the
CLK input. When the REGE pin is held at a logic LOW the
device operates in a flow through mode and data propa-
gates directly from the In to the On outputs. All outputs can
be 3-stated by holding the OE pin at a logic HIGH.
www.fairchildsemi.com
2
Share Link: 