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UPD16488AP Datasheet(PDF) 17 Page - NEC

Part # UPD16488AP
Description  1/92 DUTY LCD CONTROLLER/DRIVER WITH FOUR-LEVEL GRAY SCALE, ON-CHIP RAM
PDF  91 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD16488AP Datasheet(HTML) 17 Page - NEC

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Data Sheet S15745EJ2V0DS
17
µµµµPD16488A
Figure 5-2. Write and Read (1/2)
Write
<CPU>
<Internal timing>
/WR
DATA
BUS
holder
Write
signal
N
N + 1
N + 2
N
N + 1
N + 2
N + 3
N + 3
Latch
Read (display memory access register (R11))
<CPU>
<Internal timing>
/WR
/RD
DATA
Address
preset
Read
signal
Column
address
BUS
holder
NN
n
n + 1
N
n
n + 1
n + 2
Preset N
Increment N + 1
N + 2
Address set
#n
Dummy read
Data read
#n
Data read
#n + 1



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