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PCF8531U/2 Scheda tecnica(PDF) 31 Page - NXP Semiconductors

Il numero della parte PCF8531U/2
Spiegazioni elettronici  34 x 128 pixel matrix driver
PDF  44 Pages
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Produttore elettronici  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

PCF8531U/2 Scheda tecnica(HTML) 31 Page - NXP Semiconductors

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2000 Feb 11
31
Philips Semiconductors
Product specification
34
× 128 pixel matrix driver
PCF8531
handbook, full pagewidth
MGS483
HOST
MICROPROCESSOR/
MICROCONTROLLER
LCD PANEL
VSS1,
VSS2
VSS
VDD(I2C)
VLCD
VDD1 to VDD3
VSS1, VSS2
SDA
SCL
PCF8531
Rpu
Rpu
RES
128 column drivers
34 row drivers
Fig.24 Typical system configuration.
The host microprocessor/microcontroller and the PCF8531 are both connected to the I2C-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 (VDD,VSS and VLCD) and suitable
capacitors for decoupling VLCD and VDD.



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