PCF85321 NXP [NXP Semiconductors], PCF85321 Datasheet - Page 24
PCF85321
Manufacturer Part Number
PCF85321
Description
Universal LCD driver for low multiplex rates
Manufacturer
NXP [NXP Semiconductors]
Datasheet
1.PCF85321.pdf
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NXP Semiconductors
PCF8532_1
Product data sheet
Table 12.
[1]
Table 13.
[1]
[2]
Table 14.
[1]
[2]
[3]
Bit
7 to 2
1 to 0
Bit
7 to 2
1
0
Bit
7 to 3
2
1 to 0
Power-on and reset value.
The bank-select command has no effect in 1:3 and 1:4 multiplex drive modes.
Power-on and reset value.
Power-on and reset value.
Normal blinking is assumed when the LCD multiplex drive modes 1:3 or 1:4 are selected.
Alternating RAM bank blinking does not apply in 1:3 and 1:4 multiplex drive modes.
Symbol
-
A
BF[1:0]
Symbol
-
I
O
Device-select command bits description
Bank-select command bits description
Blink-select command bits description
Symbol
-
A[1:0]
Value
111110
0
1
0
1
Value
11110
0
1
00
01
10
11
[1]
[2]
[2]
Rev. 1 — 10 February 2009
[1]
Value
111000
00
[1]
to 11
Description
fixed value
blink mode selection
blink frequency selection
Description
Static
fixed value
input bank selection; storage of arriving display data
output bank selection; retrieval of LCD display data
normal blinking
alternate RAM bank blinking
off
1
2
3
RAM bit 0
RAM bit 2
RAM bit 0
RAM bit 2
Description
fixed value
two bits of immediate data, bits A0 to A1, are
transferred to the subaddress counter to define
one of four hardware subaddresses
Universal LCD driver for low multiplex rates
[2]
[3]
1:2 multiplex
RAM bits 0 and 1
RAM bits 2 and 3
RAM bits 0 and 1
RAM bits 2 and 3
PCF8532
© NXP B.V. 2009. All rights reserved.
[1]
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