10 lcd driver, 1 configuration, Toshiba – Toshiba TMP87CP24AF User Manual
Page 91
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2.10
LCD Driver
The
TMP87CM24A/P24A
each
have
a
driver
and
control
circuit
to
directly
drive
the
liquid
crystal
device
(LCD). The pins to be connected to LCD are as follows:
© Segment output port
12 pins (SEG11 to SEGO)
@ Segment output or P
6
, P7, P
8
, P9 input/output port 28 pins (SEG39 to SEG12)
(3)
Common output port
4 pins (COMB to COMO)
In addition, CO, Cl, VI, V2, V3 pin are provided forthe LCD driver's booster circuit.
The devices that can be directly driven is selectable from LCD of the following drive methods:
®
1/4Duty
(1/3 Bias) LCD........................................... Max 160 Segments (
8
-segment x 20 digits)
(2) 1/3 Duty
(1/3 Bias) LCD........................................... Max 120 Segments(
8
-segmentx 15digits)
(3)
1/2 Duty
(1/3 Bias) LCD........................................... Max 80 Segments (
8
-segmentx 10 digits)
@ Static LCD ........................................................................ Max40 Segments (
8
-segmentx 5 digits)
2.10.1
Configuration
TOSHIBA
TMP87CM24A/P24A
LCDCR
3
2
10
CO Cl VI V2 V3 COMO to COM3
SEGO
to SEG11SEG12to
SEG39
Figure 2-43. LCD Driver
3
-
24-91
2002
-
10-03