PCF8562TT/2,518 NXP Semiconductors, PCF8562TT/2,518 Datasheet - Page 24

• Manufacturer Part Number: PCF8562TT/2,518
• Description: LCD Drivers LCD DRIVER 32/128SEG
• Manufacturer: NXP Semiconductors

Specifications of PCF8562TT/2,518

• Number Of Digits: 16
• Number Of Segments: 128
• Maximum Clock Frequency: 400 KHz
• Operating Supply Voltage: 1.8 V to 5.5 V
• Maximum Power Dissipation: 400 mW
• Maximum Operating Temperature: + 85 C
• Package / Case: TSSOP-48
• Maximum Supply Current: 20 uA
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935276218518 PCF8562TT/2-T

NXP Semiconductors
PCF8562_5
Product data sheet
7.18 Display controller
7.19 Multiple chip operation
Table 12.
[1]
Table 13.
[1]
[2]
The display controller executes the commands identified by the command decoder. It
contains the device’s status registers and coordinates their effects. The display controller
is also responsible for loading display data into the display RAM in the correct filling order.
For large display configurations or for more segments (> 128 elements) to drive please
refer to the PCF8576D device.
The contact resistance between the SYNC input/output on each cascaded device must be
controlled. If the resistance is too high, the device will not be 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
Bit
7
6 to 2
1
0
Bit
7
6 to 3
2
1 to 0
The bank-select command has no effect in 1:3 and 1:4 multiplex drive modes.
Normal blinking is assumed when the LCD multiplex drive modes 1:3 or 1:4 are selected.
Alternate RAM bank blinking does not apply in 1:3 and 1:4 multiplex drive modes.
Symbol
C
-
I
O
Symbol
C
-
A
BF[1:0]
Bank-select command bits description
Blink-select command bits description
All information provided in this document is subject to legal disclaimers.
0, 1
11110
0, 1
1110
Value
0
1
0
1
Value
0
1
00
01
10
11
Rev. 05 — 19 May 2010
Description
Static
see
fixed value
input bank selection; storage of arriving display data
output bank selection; retrieval of LCD display data
Description
see
fixed value
blink mode selection
blink frequency selection
RAM bit 0
RAM bit 2
RAM bit 0
RAM bit 2
normal blinking
alternate RAM bank blinking
off
1
2
3
Table 8
Table 8
Universal LCD driver for low multiplex rates
[1]
[2]
1:2 multiplex
RAM bits 0 and 1
RAM bits 2 and 3
RAM bits 0 and 1
RAM bits 2 and 3
Table
PCF8562
© NXP B.V. 2010. All rights reserved.
14.
[1]
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