pcf8536 NXP Semiconductors, pcf8536 Datasheet - Page 34

• Manufacturer Part Number: pcf8536
• Description: Universal Lcd Driver For Low Multiplex Rates Including A 6 Channel Pwm Generator
• Manufacturer: NXP Semiconductors

NXP Semiconductors
Table 32.
Basic examples. GPO pins may be configured in any combination. Other LCD segment and GPO combinations are possible.
PCF8536
Product data sheet
Multiplex
drive mode
1:8
1:6
1:4
Backplane and active segment combinations
Active BPs Active GPOs
BP0 to BP7 S0 to S39
BP0 to BP5 S0 to S41
BP0 to BP3 S0 to S43
8.6 Display register
8.7 Backplane outputs
8.8 Segment outputs
The display register holds the display data while the corresponding multiplex signals are
generated.
The LCD drive section includes eight backplane outputs: BP0 to BP7. The backplane
output signals are generated based on the selected LCD multiplex drive mode.
The LCD drive section includes up to 44 segment outputs (S0 to S43) which must be
connected directly to the LCD. The segment output signals are generated based on the
multiplexed backplane signals and with data resident in the display register. When less
segment outputs are required, the unused segment outputs must be left open-circuit.
The number of available segments depends on the multiplex drive mode selected and the
number of GPOs used. The table shows consecutive GPOs selected, but this is just for
simplicity of explanation. Any combination of GPOs may be used.
•
•
•
None
In 1:8 multiplex drive mode: BP0 to BP7 must be connected directly to the LCD.
In 1:6 multiplex drive mode: BP0 to BP5 must be connected directly to the LCD.
In 1:4 multiplex drive mode: BP0 to BP3 must be connected directly to the LCD.
GP0 only
S1 to S39
S1 to S41
S1 to S43
All information provided in this document is subject to legal disclaimers.
Universal LCD low multiplex driver with 6 channel PWM generator
Rev. 1 — 6 October 2011
GP0 to GP1 GP0 to GP2 GP0 to GP3 GP0 to GP4 GP0 to GP5
S2 to S39
S2 to S41
S2 to S43
S3 to S39
S3 to S41
S3 to S43
S4 to S39
S4 to S41
S4 to S43
S5 to S39
S5 to S41
S5 to S43
PCF8536
© NXP B.V. 2011. All rights reserved.
S6 to S39
S6 to S41
S6 to S43
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