pcf8532 NXP Semiconductors, pcf8532 Datasheet - Page 23

• Manufacturer Part Number: pcf8532
• Description: Universal Lcd Driver For Low Multiplex Rates
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCF8532_1
Product data sheet
Table 8.
Table 9.
[1]
[2]
Table 10.
[1]
Table 11.
[1]
Command
Bit
mode-set
load-data-pointer-MSB
load-data-pointer-LSB
device-select
bank-select
blink-select
frequency-prescaler
Bit
7 to 4
3
2
1 to 0
Bit
7 to 4
3 to 0
Bit
7 to 4
3 to 0
Power-on and reset value.
The possibility to disable the display allows implementation of blinking under external control; the enable bit
determines also wether the internal clock signal is available at the CLK pin (see
Power-on and reset value.
Power-on and reset value.
Definition of PCF8532 commands
Mode-set command bits description
Load-data-pointer-MSB command bits description
Load-data-pointer-LSB command bits description
Symbol
-
E
B
M[1:0]
Symbol
-
P[7:4]
Symbol
-
P[3:0]
Rev. 1 — 10 February 2009
Operation code
7
1
0
0
1
1
1
1
Value
1100
0
1
0
1
01
10
11
00
Value
0000
0000
1001
Value
0100
0000
1111
[1]
[1]
[1]
[1]
[1]
6
1
0
1
1
1
1
1
to
to
5
0
0
0
1
1
1
1
Description
fixed value
display status
LCD bias configuration
LCD drive mode selection
Description
fixed value
P7 to P4 defines the first 4 (most significant) bits of
the data pointer that indicates one of the 160 display
RAM addresses
Description
fixed value
P3 to P0 defines the last 4 (least significant) bits of the
data pointer that indicates one of the 160 display RAM
addresses
disabled (blank)
enabled
1
1
static; BP0
1:2 multiplex; BP0, BP1
1:3 multiplex; BP0, BP1, BP2
1:4 multiplex; BP0, BP1, BP2, BP3
Universal LCD driver for low multiplex rates
3
2
bias
bias
4
0
0
0
0
1
1
0
3
E
P7
P3
0
1
0
1
[2]
2
B
P6
P2
0
0
A
F2
1
M1
P5
P1
A1
I
BF1
F1
Section
PCF8532
0
M0
P4
P0
A0
O
BF0
F0
© NXP B.V. 2009. All rights reserved.
7.5.1).
Reference
Table 9
Table 10
Table 11
Table 12
Table 13
Table 14
Table 15
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