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PCF8534AHL/1 датащи(PDF) 7 Page - NXP Semiconductors

номер детали PCF8534AHL/1
подробное описание детали  Universal LCD driver for low multiplex rates
PDF  47 Pages
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производитель  NXP [NXP Semiconductors]
домашняя страница  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCF8534AHL/1 датащи(HTML) 7 Page - NXP Semiconductors

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PCF8534A_5
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 05 — 6 August 2009
7 of 47
NXP Semiconductors
PCF8534A
Universal LCD driver for low multiplex rates
6.2 Pin description
[1]
The substrate (rear side of the die) is wired to VSS but should not be electrically connected.
7.
Functional description
The PCF8534A 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 60 segments.
The display configurations possible with the PCF8534A depend on the number of active
backplane outputs required. Display configuration selection is shown in Table 4. All of the
display configurations can be implemented in the typical system shown in Figure 5.
Table 3.
Pin description
Symbol
Pin
Description
SOT315-1 Bare die
S31 to S59
1 to 29
44 to 72
LCD segment output 31 to 59
BP0 to BP3
30 to 33
73 to 76
LCD backplane output 0 to 3
n.c.
34 to 37
-
not connected
SDA
38
1
I2C-bus serial data input and output
SCL
39
2
I2C-bus serial clock input
CLK
40
3
external clock input and internal clock output
VDD
41
4
supply voltage
SYNC
42
5
cascade synchronization input and output (active LOW)
OSC
43
6
enable input for internal oscillator
A0 to A2
44 to 46
7 to 9
subaddress counter input 0 to 2
SA0
47
10
I2C-bus slave address input 0
VSS
48
11[1]
ground
VLCD
49
12
input of LCD supply voltage
S0 to S30
50 to 80
13 to 43
LCD segment output 0 to 30
Table 4.
Selection of display configurations
Number of
7-segment numeric
14-segment numeric
Dot matrix
Backplanes
Elements
Digits
Indicator symbols
Characters
Indicator symbols
4
240
30
30
16
16
240 (4
× 60)
3
180
22
26
12
12
180 (3
× 60)
2
120
15
15
8
8
120 (2
× 60)
1
60
7
11
4
4
60 (1
× 60)



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