PCF8531U NXP [NXP Semiconductors], PCF8531U Datasheet - Page 37

• Manufacturer Part Number: PCF8531U
• Description: 34 x 128 pixel matrix driver
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
Table 17.
PCF8531_4
Product data sheet
Step
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Programming example for PCF8531
Serial bus byte
DB7 DB6 DB5 DB4 DB3 DB2 DB1 DB0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
15.3 Programming example
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
0
1
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
0
0
0
0
0
0
0
1
0
Rev. 04 — 13 June 2008
SA0
0
0
0
1
0
0
0
0
0
0
0
0
0
1
0
1
0
1
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
1
0
0
0
1
0
0
0
1
0
Display
34 x 128 pixel matrix driver
select temperature
coefficient 2 TC[2:0] = 010
control byte; Co = 1; RS = 0
select high V
Operation
start; slave address; R/W = 0
control byte; Co = 1; RS = 0
H[1:0] independent
command; select function
and RAM command page
(H[1:0] = 00)
control byte; Co = 1; RS = 0
function and RAM command
page PD = 0 and V = 1
control byte; Co = 1; RS = 0
function and RAM command
page select display setting
command page H[1:0] = 01
control byte; Co = 1; RS = 0
display setting command
page; set normal mode
(D = 1; IM = 0 and E = 0)
control byte; Co = 1; RS = 0
select multiplex rate 1:34
control byte; Co = 1; RS = 0
H[2:0] independent
command; select function
and RAM command page
H[1:0] = 00
control byte; Co = 1; RS = 0
function and RAM command
page; select HV-gen
command page H[1:0] = 10
control byte; Co = 1; RS = 0
HV-gen command page;
select voltage multiplication
factor 5 S[1:0] = 11
control byte; Co = 1; RS = 0
HV-gen command page;
HV-gen command page;
programming range
(PRS = 1); voltage multiplier
off (HVE = 1)
control byte; Co = 1; RS = 0
PCF8531
© NXP B.V. 2008. All rights reserved.
LCD
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