pcf8536 NXP Semiconductors, pcf8536 Datasheet - Page 35

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

NXP Semiconductors
PCF8536
Product data sheet
8.9 Display RAM
The display RAM stores the LCD data. Depending on the multiplex drive mode, the
arrangement of the RAM is changed.
Logic 1 in the RAM bit map indicates the on-state (V
element; similarly, logic 0 indicates the off-state (V
V
There is a one-to-one correspondence between
Fig 20. Display RAM bitmap
on(RMS)
•
•
•
•
the bits in the RAM bitmap and the LCD elements,
multiplex drive 1:8: RAM is 40  8 bit
multiplex drive 1:6: RAM is 42  6 bit
multiplex drive 1:4: RAM is 44  4 bit
Multiplex 1:6 drive mode
Multiplex 1:4 drive mode
Multiplex 1:8 drive mode
and V
The display RAM bitmap shows the direct relationship between the display RAM column and the
segment outputs and between the bits in a RAM row and the backplane outputs.
off(RMS)
All information provided in this document is subject to legal disclaimers.
Universal LCD low multiplex driver with 6 channel PWM generator
, see
BP0
BP1
BP2
BP3
BP4
BP5
BP0
BP1
BP2
BP3
BP0
BP1
BP2
BP3
BP4
BP5
BP6
BP7
Rev. 1 — 6 October 2011
Section
S0 S1 S2 S3 S4
S0 S1 S2 S3 S4
S0 S1 S2 S3 S4
Display RAM addresses (columns)/segment outputs (S)
8.4.
off(RMS)
on(RMS)
S35 S36 S37 S38 S39 S40 S41
S35 S36 S37 S38 S39 S40 S41 S42 S43
S35 S36 S37 S38 S39
). For more information on
) of the corresponding LCD
PCF8536
© NXP B.V. 2011. All rights reserved.
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