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HD66712 Datasheet, PDF (79/88 Pages) Hitachi Semiconductor – Dot-Matrix Liquid Crystal Display Controller/Driver
HD66712U
Serial Interface Sequence
Item
Serial clock cycle time
Serial clock (high level width)
Serial clock (low level width)
Serial clock rise/fall time
Chip select set-up time
Chip select hold time
Serial input data set-up time
Serial input data hold time
Serial output data delay time
Serial output data hold time
Symbol
tSCYC
tSCH
tSCL
t , t SCr SCf
tCSU
tCH
tSISU
tSIH
tSOD
tSOH
Min
0.5
200
200
—
60
100
100
100
—
0
Typ
—
—
—
—
—
—
—
—
—
—
Max Unit
20
µs
—
ns
—
50
—
—
—
—
160
—
Test Condition
Figure 36
Segment Extension Signal Timing (VCC = 2.7V to 5.5V, Ta = –20 to +75°C*3)
Item
Symbol Min
Typ
Clock pulse width High level tCWH
Low level tCWL
Clock set-up time
tCSU
Data set-up time
tSU
Data hold time
tDH
M delay time
tDM
Clock rise/fall time
tct
800
—
800
—
500
—
300
—
300
—
–1000 —
—
—
Max
—
—
—
—
—
1000
100
Unit
ns
Test Condition
Figure 37
Reset Timing (VCC = 2.7V to 5.5V, Ta = –20 to +75°C*3)
Item
Reset low-level width
Symbol Min
Typ
Max
Unit
Test Condition
tRES
10
—
—
ms
Figure 38
Power Supply Conditions Using Internal Reset Circuit
Item
Power supply rise time
Power supply off time
Symbol Min
Typ
Max
Unit
Test Condition
trCC
0.1
—
10
ms
Figure 39
tOFF
1
—
—
442