PC8532-1 View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
Manufacturer
PC8532-1 Datasheet PDF : 44 Pages
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NXP Semiconductors
PCF8532
Universal LCD driver for low multiplex rates
6.2 Pin description
Table 3. Pin description
Symbol
Pin
SDAACK
1 to 3
SDA
4 to 6
SCL
7 to 9
CLK
10
VDD
SYNC
11 to 13
14
OSC
15
T1, T2 and T3
16, 17 and 18 to 20
A0 and A1
21, 22
SA0
23
VSS
VLCD
BP2 and BP0
24 to 26
27 to 29
30, 31
S0 to S79
32 to 111
BP0, BP2, BP1 and BP3 112 to 115
S80 to S159
116 to 195
BP3 and BP1
196, 197
Description
[1] I2C-bus acknowledge output
[1] I2C-bus serial data input
I2C-bus serial clock input
clock input/output
supply voltage
cascade synchronization input/output
selection of internal or external clock
dedicated testing pins; to be tied to
VSS in application mode
subaddress inputs
I2C-bus slave address input
[2] logic ground
LCD supply voltage
LCD backplane outputs
LCD segment outputs
LCD backplane outputs
LCD segment outputs
LCD backplane outputs
[1] In most applications SDA and SDAACK can be tied together.
[2] The substrate (rear side of the die) is wired to VSS but should not be electrically connected.
7. Functional description
The PCF8532 is a versatile peripheral device designed to interface any
microprocessor or microcontroller to a wide variety of LCDs. It can directly drive any static
or multiplexed LCD containing up to four backplanes and up to 160 segments.
The display configurations possible with the PCF8532 depend on the number of active
backplane outputs required. A selection of display configurations is shown in Table 4.
All of the display configurations can be implemented in a typical system as shown in
Figure 3.
Table 4. Possible display configurations
Number of
7-segment numeric
Backplanes Elements Digits
Indicator
symbols
4
640
80
80
3
480
60
60
2
320
40
40
1
160
20
20
14-segment numeric
Characters Indicator
symbols
40
80
32
32
20
40
10
20
Dot matrix
640 dots (4 × 160)
480 dots (3 × 160)
320 dots (2 × 160)
160 dots (1 × 160)
PCF8532_1
Product data sheet
Rev. 1 — 10 February 2009
© NXP B.V. 2009. All rights reserved.
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