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PCF8576D Datasheet(PDF) 26 Page - NXP Semiconductors

Part No. PCF8576D
Description  Universal LCD driver for low multiplex rates
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Maker  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
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PCF8576D Datasheet(HTML) 26 Page - NXP Semiconductors

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PCF8576D
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 10 — 14 February 2011
26 of 50
NXP Semiconductors
PCF8576D
Universal LCD driver for low multiplex rates
[1]
The bank-select command has no effect in 1:3 and 1:4 multiplex drive modes.
[1]
Normal blinking is assumed when the LCD multiplex drive modes 1:3 or 1:4 are selected.
[2]
Alternate RAM bank blinking does not apply in 1:3 and 1:4 multiplex drive modes.
Table 10.
Load-data-pointer command bits description
Bit
Symbol
Value
Description
7C
0, 1see Table 8
6
-
0
fixed value
5 to 0
P[5:0]
000000 to
100111
6 bit binary value, 0 to 39; transferred to the data pointer to
define one of forty display RAM addresses
Table 11.
Device-select command bits description
Bit
Symbol
Value
Description
7C
0, 1see Table 8
6 to 3
-
1100
fixed value
2 to 0
A[2:0]
000 to 111
3 bit binary value, 0 to 7; transferred to the subaddress
counter to define one of eight hardware subaddresses
Table 12.
Bank-select command bits description
Bit
Symbol
Value
Description
Static
1:2 multiplex[1]
7
C
0, 1
see Table 8
6 to 2
-
11110
fixed value
1I
input bank selection; storage of arriving display data
0
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
RAM bit 0
RAM bits 0 and 1
1
RAM bit 2
RAM bits 2 and 3
Table 13.
Blink-select command bits description
Bit
Symbol
Value
Description
7C
0, 1see Table 8
6 to 3
-
1110
fixed value
2A
blink mode selection
0
normal blinking[1]
1
alternate RAM bank blinking[2]
1 to 0
BF[1:0]
blink frequency selection
00
off
01
1
10
2
11
3


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