PCF8576DT/S400/2,1 NXP Semiconductors, PCF8576DT/S400/2,1 Datasheet - Page 27

• Manufacturer Part Number: PCF8576DT/S400/2,1
• Description: LCD Drivers 2.64KHz 50mA 400mW
• Manufacturer: NXP Semiconductors

Specifications of PCF8576DT/S400/2,1

• Rohs: yes
• Maximum Clock Frequency: 2.64 kHz
• Operating Supply Voltage: 1.8 V to 5.5 V
• Package / Case: TSSOP-56
• Maximum Power Dissipation: 400 mW
• Maximum Supply Current: 50 mA
• Mounting Style: SMD/SMT
• Factory Pack Quantity: 2000

NXP Semiconductors
8. Characteristics of the I
PCF8576D
Product data sheet
8.1.1 START and STOP conditions
8.1 Bit transfer
8.2 System configuration
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 as changes in the data line at this time
will be interpreted as a control signal (see
Both data and clock lines remain HIGH when the bus is not busy.
A HIGH-to-LOW transition of the data line while the clock is HIGH is defined as the START
condition - S.
A LOW-to-HIGH transition of the data line while the clock is HIGH is defined as the STOP
condition - P.
The START and STOP conditions are illustrated in
A device generating a message is a transmitter, a device receiving a message is the
receiver. The device that controls the message is the master and the devices which are
controlled by the master are the slaves. The system configuration is shown in
Fig 14. Bit transfer
Fig 15. 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.
2
SDA
SCL
C-bus
S
Rev. 13 — 10 May 2012
data valid
data line
stable;
Figure
Universal LCD driver for low multiplex rates
allowed
change
of data
14).
Figure
15.
STOP condition
mba607
PCF8576D
P
© NXP B.V. 2012. All rights reserved.
mbc622
Figure
SDA
SCL
27 of 56
16.