PCF8820U Philips Semiconductors, PCF8820U Datasheet - Page 22

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

Philips Semiconductors
2000 Dec 07
PS
BS
BS
BS
DP
DP
PRS
HVE
S
TC
TC
SM
V
2
OP6
67 101 Grey-scale/ECB colour dot matrix
LCD driver
, S
2
0
1
2
0
2
0
, BS
/
, TC
, DP
2
BIT
1
to V
, S
1
1
1
0
,
,
,
OP0
RESET
STATE
000
000
000
000
0
0
0
0
0
0
VALUE
000
111
000
001
010
011
100
101
110
000
001
010
011
100
101
110
111
0
1
0
1
0
1
0
1
0
1
screen mode
bias system selection bits; see Section 8.1.4
bias system selection
display part
V
high voltage generator
voltage multiplier factor; see Section 8.1.5
temperature coefficient; see Chapter 11
temperature measurement
V
LCDOUT
LCD
full display mode: multiplex rate is 1 : 67
partial screen mode: multiplex rate is 1 : 8; see Section 8.1.2.
setting of bits BS2 to BS0
bias system
DDRAM bank 0 to 1: first 8 rows
DDRAM bank 14 to 15: last 8 rows
LOW range
HIGH range
disabled
enabled
2
3
4
5
6
7
8
coefficient 0
coefficient 1
coefficient 2
coefficient 3
coefficient 4
coefficient 5
coefficient 6
coefficient 7
no measurement
start measurement
control register bits; see Section 8.1.7
V
V
V
V
V
V
V
DD2
DD2
DD2
DD2
DD2
DD2
DD2
programming range; see Fig.20
1
/
2
; see Section 8.1.4
22
FUNCTION
Product specification
PCF8820