HV7620XW Ver la hoja de datos (PDF) - Supertex Inc
Número de pieza
componentes Descripción
Fabricante
HV7620XW Datasheet PDF : 5 Pages
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Functional Block Diagram
DINA
DOUTA
CLK
DINB
DOUTB
DIR
DINC
DOUTC
DIND
DOUTD
LE BLA CS
QA1
8-bit
shift
register
8
8-bit
latches
QA8
≈≈
BLB
QB1
8-bit
shift
register
8
8-bit
latches
QB8
≈≈
BLC
QC1
8-bit
shift
register
8
8-bit
latches
QC8
≈≈
BLD
QD1
8-bit
shift
register
8
8-bit
latches
QD8
≈≈
POL
≈
≈
≈
HV7620
HVOUT A1
HVOUT B1
HVOUT C1
HVOUT D1
HVOUT A8
HVOUT B8
HVOUT C8
HVOUT D8
Function Table
Inputs
HV Outputs
Function
All O/P High
DINA DINB DINC DIND CLK LE DIR BLA BLB BLC BLD CS POL A
B
C
D
XXXXXXXXXXX L LHHHH
All O/P Low
XXXXXXXXXXXLHL L L L
“A” Outputs Low X X X X X X X L X X X X H L
*
*
*
Normal Polarity
XXXXXXXHHHHHH
No Inversion
Outputs Inverted X X X X X X X H H H H H L
Inversion
Transparent Mode H L L L ↑ H X H H H H H H H L L L
Data Stored
XXXXX L XHHHHHH
Stored Data
Shift CW
Shift CCW
X
X
X
X
↑
H
H
H
H
H
H
H
X
AN
BN
CN
DN
A→N+1 B→N+1 C→N+1 D→N+1
X
X
X
X
↑
H
L
H
H
H
H
H
X
AN
BN
CN
DN
A→N–1 B→N–1 C→N–1 D→N–1
Notes:
H = High level, L = Low level, X = Irrelevant, ↑ = Low to high transition.
* = Dependent on previous stage’s state before the last CLK ↑ for last LE high.
Power-up sequence:
GND (HV, LV)
VDD2
VDD1
Logic Input Signals
VPP
To power down reverse the sequence above.
The VPP should not drop below VDD or float during operation.
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