PCF8576DT NXP Semiconductors, PCF8576DT Datasheet - Page 7

• Manufacturer Part Number: PCF8576DT
• Manufacturer: NXP Semiconductors

Specifications of PCF8576DT

• Operating Supply Voltage (typ): 2.5/3.3/5V
• Number Of Digits: 20
• Number Of Segments: 160
• Package Type: TSSOP
• Pin Count: 56
• Mounting: Surface Mount
• Power Dissipation: 400mW
• Frequency (max): 400KHz
• Operating Supply Voltage (min): 1.8V
• Operating Supply Voltage (max): 5.5V
• Lead Free Status / Rohs Status: Supplier Unconfirmed

NXP Semiconductors
Table 3.
[1]
7. Functional description
PCF8576D_9
Product data sheet
Symbol
SDA
SCL
CLK
V
SYNC
OSC
A0 to A2
SA0
V
V
BP0, BP2,
BP1, BP3
S0 to S39
n.c.
DD
SS
LCD
The substrate (rear side of the die) is wired to V
Pin description
Pin
PCF8576DH/2
10
11
13
14
12
15
16 to 18
19
20
21
25 to 28
29 to 32, 34 to 47,
49 to 64, 2 to 7
1, 8, 9, 22 to 24,
33, 48
6.2 Pin description
The PCF8576D is a versatile peripheral device designed to interface any
microprocessor or microcontroller with a wide variety of LCDs. It can directly drive any
static or multiplexed LCD containing up to four backplanes and up to 40 segments.
The possible display configurations of the PCF8576D depend on the number of active
backplane outputs required. A selection of display configurations is shown in
of these configurations can be implemented in the typical system shown in
Table 4.
Number of:
Backplanes Segments Digits
4
3
2
1
Display configurations
PCF8576DT/x
44
45
47
48
46
49
50 to 52
53
54
55
56, 1, 2, 3
4 to 43
-
160
120
80
40
SS
but should not be electrically connected.
Rev. 09 — 25 August 2009
7-segment numeric
20
15
10
5
PCF8576DU/x
1, 58 and 59
2 and 3
5
6
4
7
8 to 10
11
12
13
14 to 17
18 to 57
-
[1]
Indicator
symbols
20
15
10
5
Universal LCD driver for low multiplex rates
14-segment numeric
Characters Indicator
10
8
5
2
Description
I
I
external clock input or output
supply voltage
cascade synchronization input or
output
internal oscillator enable input
subaddress inputs
I
ground supply voltage
LCD supply voltage
LCD backplane outputs
LCD segment outputs
not connected
2
2
2
C-bus serial data input and output
C-bus serial clock input
C-bus address input; bit 0
symbols
20
8
10
12
PCF8576D
© NXP B.V. 2009. All rights reserved.
Dot matrix
160 dots (4
120 dots (3
80 dots (2
40 dots (1
Figure
Table
5.
4. All
7 of 52
40)
40)
40)
40)