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PCA85232DA Datasheet(PDF) 27 Page - NXP Semiconductors

Part # PCA85232DA
Description  LCD driver for low multiplex rates
PDF  54 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

PCA85232DA Datasheet(HTML) 27 Page - NXP Semiconductors

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PCA85232
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 1 — 8 December 2010
27 of 54
NXP Semiconductors
PCA85232
LCD driver for low multiplex rates
[1]
Power-on and reset value.
[1]
Power-on and reset value.
[1]
The bank-select command has no effect in 1:3 and 1:4 multiplex drive modes.
[2]
Power-on and reset value.
[1]
Power-on and reset value.
[2]
Normal blinking is assumed when the LCD multiplex drive modes 1:3 or 1:4 are selected.
[3]
Alternate RAM bank blinking does not apply in 1:3 and 1:4 multiplex drive modes.
Table 12.
Load-data-pointer-LSB command bit description
Bit
Symbol
Value
Description
7 to 4
-
0100
fixed value
3 to 0
P[3:0]
0000[1] to
1111
P3 to P0 defines the last 4 (least significant) bits of the
data pointer that indicates one of the 160 display RAM
addresses
Table 13.
Device-select command bit description
Bit
Symbol
Value
Description
7 to 2
-
111000
fixed value
1 to 0
A[1:0]
00[1] to 11
two bits of immediate data, bits A0 to A1, are
transferred to the subaddress counter to define
one of four hardware subaddresses (see Table 20)
Table 14.
Bank-select command bit description
Bit
Symbol
Value
Description
Static
1:2 multiplex[1]
7 to 2
-
111110
fixed value
1I
input bank selection; storage of arriving display data
0[2]
RAM bit 0
RAM bits 0 and 1
1
RAM bit 2
RAM bits 2 and 3
0O
output bank selection; retrieval of LCD display data
0[2]
RAM bit 0
RAM bits 0 and 1
1
RAM bit 2
RAM bits 2 and 3
Table 15.
Blink-select command bit description
Bit
Symbol
Value
Description
7 to 3
-
11110
fixed value
2AB
blink mode selection
0[1]
normal blinking[2]
1
alternate RAM bank blinking[3]
1 to 0
BF[1:0]
blink frequency selection
00[1]
off
01
1
10
2
11
3



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