pcf8562 NXP Semiconductors, pcf8562 Datasheet - Page 24

• Manufacturer Part Number: pcf8562
• Description: Universal Lcd Driver For Low Multiplex Rates
• Manufacturer: NXP Semiconductors

NXP Semiconductors
PCF8562_2
Product data sheet
7.10 Multiple chip operation
7.9 Display controller
The display controller executes the commands identified by the command decoder. It
contains the device’s status registers and co-ordinates 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 please refer to the PCF8576D device.
Please refer to PCF8576D if you need to drive more segments (> 128 elements).
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
Table 16.
Number of devices
2
3 to 5
6 to 10
10 to 16
SYNC contact resistance
Rev. 02 — 22 January 2007
Universal LCD driver for low multiplex rates
Maximum contact resistance
6000
2200
1200
700
Table
PCF8562
© NXP B.V. 2007. All rights reserved.
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