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UPD6345GS Datasheet(PDF) 3 Page - NEC

Part # UPD6345GS
Description  8 BIT SERIAL IN/PARALLEL OUT DRIVER
PDF  16 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD6345GS Datasheet(HTML) 3 Page - NEC

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3
µPD6345
TRUTH TABLE
SCK
EN
RES
LAT
SIN
OUT
SO*1
Note
O1
On
H
H
H
L
High Impedance
On – 1
S7
HHHH
L
On – 1
S7
HH
L*2
*
NO CHANGE
NO CHANGE
S7
L
H
*
*
High Impedance High Impedance
S7
****
NO CHANGE
NO CHANGE
S8
*
*
L
H
*
High Impedance High Impedance
L
*
H
L
*
NO CHANGE
NO CHANGE
L
*1) Seventh data S7 of shift register is loaded to eighth data S8 on positive-going transition of clock, and is output
to Serial data Output pin.
*2) Shift register operates normally.
BLOCK DIAGRAM
O1
O2
O3
O4
O5
O6
O7
O8
P1
P2
P3
P4
P5
P6
P7
P8
S1
S2
S3
S4
S5
S6
S7
S8
SO
EN
LAT
SIN
RES
SCK
100 k
100 k
100 k
100 k
100 k
P1 to P8 ; Latch Circuits
S1 to S8 ; 8-bit Shift register
SCK = CLOCK
EN = Output Enable
RES= Reset
LAT= Latch Enable
SIN = Serial data Input
OUT = Driver Output
SO = Serial data Output
* = H or L
H = High level
L = Low level



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