參數(shù)資料
型號: PCF8531
廠商: NXP Semiconductors N.V.
英文描述: 34×128 pixel matrix driver(34×128 像素矩陣驅(qū)動器)
中文描述: 34 × 128像素矩陣驅(qū)動器(34 × 128像素矩陣驅(qū)動器)
文件頁數(shù): 31/44頁
文件大小: 212K
代理商: PCF8531
2000 Feb 11
31
Philips Semiconductors
Product specification
34
×
128 pixel matrix driver
PCF8531
handbook, full pagewidth
MGS483
HOST
MICROPROCESSOR/
MICROCONTROLLER
LCD PANEL
S
VSS1,
VSS2
VSS
VDD(I2C)
VLCD
VDD1 to VDD3
VSS1, VSS2
S
SDA
SCL
S
PCF8531
R
S
Rpu
Rpu
RES
E
128 column drivers
34 row drivers
Fig.24 Typical system configuration.
The host microprocessor/microcontroller and the PCF8531 are both connected to the I
2
C-bus. The SDA and SCL lines
must be connected to the positive power supply via pull-up resistors. The internal oscillator requires no external
components. The appropriate intermediate biasing voltage for the multiplexed LCD waveforms are generated on-chip.
The only other connections required to complete the system are to the power supplies (V
DD
, V
SS
and V
LCD
) and suitable
capacitors for decoupling V
LCD
and V
DD
.
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