PCF8577C 데이터 시트보기 (PDF) - Philips Electronics
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PCF8577C Datasheet PDF : 28 Pages
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Philips Semiconductors
LCD direct/duplex driver with
I2C-bus interface
Product specification
PCF8577C
CONTROL REGISTER
DISPLAY SEGMENT BYTE VECTOR
CONTROL
(SBV)
msb
lsb
V5 V4 V3 V2 V1 V0
(1) (1)
segment byte
register
address
comparison
SEGMENT BYTE REGISTERS
msb
0
2
4
6
lsb
BANK 'A'
A2 A1 A0
device
subaddress
0 BANK 'A'
1 BANK 'B'
BANK
0 DIRECT DRIVE
1 DUPLEX DRIVE
DISPLAY
MODE
1
3
5
7
(1) Bits ignored in duplex mode.
BANK 'B'
MGA733
Fig.3 PCF8577C register organization.
VDD
VSS
VDD
VSS
VDD VSS
0
(VDD VSS )
OFF
ON
BP1
Segment x
(Sx)
BP1 Sx
1
f LCD
MGA737
Von(rms) = VDD − VSS; Voff(rms) = 0.
Fig.4 Direct drive mode display output waveforms.
1998 Jul 30
6
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