HV623 データシートの表示（PDF） - Supertex Inc
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HV623 Datasheet PDF : 10 Pages
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Timing Diagrams
(a) Basic System Timing
VR
Chip Select
Input (CSI)
Chip Select
Output (CSO)
Shift Clock
(SC)
Data In
(D1 - D7)
Load Count*
(LC)
Count Clock
(CC)
HV OUT
HV623
t CR
t RR
t HR
t FR
Load
First
Device
Load
Second
Device
Load
Last
Device
↑↓↑↓↑↓ ↑↓ ↑↓↑↓ ↑↓ ↑↓↑↓↑↓ ↑↓ ↑↓↑↓
↑↓
↑↓↑↓↑↓↑↓
Data from Data Bus (See Detailed Timing)
t DLCR
↑↑ ↑ ↑↑
↑
12 3 4 5
128
↑↑ ↑ ↑↑
↑
12 3 4 5
128
– OBSOLETE – *HVOUT will clear to zero with load count.
(b) Detailed Device Timing
LOADING LAST DEVICE
NEXT LOADING CYCLE
Chip Select
Input (CSI)
t WA
Chip Select
Output (CSO)
Shift Clock
(SC)
t SS
t HS
SC 1
t CSC
SC 2
SC 16
SC 1
SC 16
Data
(D1-D7)
t DS
Load Count
(LC)
DATA
SET 1
DATA
SET 2
t DH
DATA
SET 3
t WD
Count Clock
(CC)
V
R
DATA
SET 31
DATA
SET 32
t DSL
DATA
SET 1
t WLC
DATA
SET 31
t
WCC
t
CCC
t
DLCR
Count
Clock 1
t DRCC
Count
Clock 128
80V
0V
3V
8
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