PCF8820U Philips Semiconductors, PCF8820U Datasheet - Page 38

• Manufacturer Part Number: PCF8820U
• Description: 67 x 101 Grey-scale/ECB colour dot matrix LCD driver
• Manufacturer: Philips Semiconductors

Philips Semiconductors
2000 Dec 07
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STEP
67 101 Grey-scale/ECB colour dot matrix
LCD driver
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
1
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SERIAL BUS BYTE
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LCD
H
select function and RAM command
page (H
control byte: Co = 1, RS = 0
function and RAM command page:
select HVGen command page
(H
control byte: Co = 1, RS = 0
HVGen command page: select
voltage multiplier factor 2
(S
control byte: Co = 1, RS = 0
HVGen command page: select
temperature coefficient 2
(TC
control byte: Co = 1, RS = 0
HVGen command page: select
LOW V
(PRS = 0), HVGen off (HVE = 0)
control byte: Co = 1, RS = 0
HVGen command page: set
V
(V
control byte: Co = 1, RS = 0
H
select function and RAM command
page (H
control byte: Co = 1, RS = 0
function and RAM command page:
select grey-scale/colour command
page (H
control byte: Co = 1, RS = 0
grey-scale/colour command page:
select grey-scale register 0
(GR
control byte: Co = 1, RS = 0
grey-scale/colour command page:
set grey-scale to 0
(GS
control byte: Co = 1, RS = 0
grey-scale/colour command page:
select grey-scale register 1
(GR
control byte: Co = 1, RS = 0
LCD
2
2
2
OP6
2
to H
to H
to S
2
to H
5
1
1
to TC
to 8.595 V
to GS
to GR
to GR
to V
LCD
0
0
0
2
0
2
2
independent command:
independent command:
= 000)
to H
to H
to H
= 010)
OP0
0
OPERATION
programming range
0
0
0
= 010)
= 000000)
= 00)
= 01)
0
0
0
= 1011011)
= 000)
= 000)
= 011)
Product specification
PCF8820