PCF8576CT/S480/1,1 NXP Semiconductors, PCF8576CT/S480/1,1 Datasheet - Page 25
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PCF8576CT/S480/1,1
Manufacturer Part Number
PCF8576CT/S480/1,1
Description
LCD Drivers Universal LCD Driver Low Multiplex Rates
Manufacturer
NXP Semiconductors
Datasheet
1.PCF8576CTS48011.pdf
(61 pages)
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NXP Semiconductors
PCF8576C
Product data sheet
7.16.1 Bit transfer
7.16.2 START and STOP conditions
7.16 Characteristics of the I
In the 1:3 and 1:4 multiplex modes, where no alternate RAM bank is available, groups of
LCD segments can be blinked by selectively changing the display RAM data at fixed time
intervals.
If the entire display needs to be blinked at a frequency other than the nominal blink
frequency, this can be done using the mode-set command to set and reset the display
enable bit E at the required rate (see
The I
The two lines are a Serial DAta line (SDA) and a Serial CLock line (SCL). Both lines must
be connected to a positive supply via a pull-up resistor when connected to the output
stages of a device. Data transfer may be initiated only when the bus is not busy.
One data bit is transferred during each clock pulse. The data on the SDA line must remain
stable during the HIGH period of the clock pulse. Changes in the data line at this time will
be interpreted as a control signal. Bit transfer is illustrated in
Both data and clock lines remain HIGH when the bus is not busy. A HIGH-to-LOW change
of the data line, while the clock is HIGH, is defined as the START condition (S).
A LOW-to-HIGH change of the data line, while the clock is HIGH, is defined as the STOP
condition (P). The START and STOP conditions are illustrated in
Fig 16. Bit transfer
Fig 17. Definition of START and STOP conditions
2
C-bus is for bidirectional, two-line communication between different ICs or modules.
SDA
SCL
START condition
All information provided in this document is subject to legal disclaimers.
SDA
SCL
S
Rev. 11 — 30 March 2012
2
C-bus
data valid
data line
stable;
Table
Universal LCD driver for low multiplex rates
9).
change
allowed
of data
Figure
STOP condition
Figure
mba607
PCF8576C
P
16.
© NXP B.V. 2012. All rights reserved.
17.
mbc622
SDA
SCL
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