PCF8576DT/S400/2,1 NXP Semiconductors, PCF8576DT/S400/2,1 Datasheet - Page 37

• Manufacturer Part Number: PCF8576DT/S400/2,1
• Description: LCD Drivers 2.64KHz 50mA 400mW
• Manufacturer: NXP Semiconductors

Specifications of PCF8576DT/S400/2,1

• Rohs: yes
• Maximum Clock Frequency: 2.64 kHz
• Operating Supply Voltage: 1.8 V to 5.5 V
• Package / Case: TSSOP-56
• Maximum Power Dissipation: 400 mW
• Maximum Supply Current: 50 mA
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 2000

NXP Semiconductors
PCF8576D
Product data sheet
The contact resistance between the SYNC on each cascaded device must be controlled.
If the resistance is too high, the device is not able to synchronize properly; this is
particularly applicable to chip-on-glass applications. The maximum SYNC contact
resistance allowed for the number of devices in cascade is given in
Table 21.
The PCF8576D can be cascaded with the PCF8562. This allows optimal drive selection
for a given number of pixels to display.
synchronization signals.
Number of devices
2
3 to 5
6 to 10
10 to 16
Fig 23. Cascaded PCF8576D configuration
V
V
V
CONTROLLER
PROCESSOR/
SS
LCD
DD
MICRO-
MICRO-
HOST
SYNC contact resistance
R
≤
All information provided in this document is subject to legal disclaimers.
2C
t r
B
Rev. 13 — 10 May 2012
SYNC
SDA
OSC
SCL
CLK
SYNC
SDA
SCL
CLK
OSC
Figure 21
4
5
7
1, 58, 59
2, 3
8
A0
1, 58, 59
2, 3
4
5
7
Universal LCD driver for low multiplex rates
8
6
PCF8576DU
A0
V
9
DD
A1
Maximum contact resistance
6 kΩ
2.2 kΩ
1.2 kΩ
700 Ω
PCF8576DU
6
9
V
A1
10
DD
A2
and
13
10
A2 SA0 V
V
13
11
LCD
SA0
V
11
Figure 22
LCD
12
V
12
SS
40 segment drives
SS
4 backplanes
40 segment drives
BP0 to BP3
show the timing of the
BP0 to BP3
(open-circuit)
PCF8576D
Table
© NXP B.V. 2012. All rights reserved.
21.
LCD PANEL
(up to 2560
elements)
mdb077
37 of 56