PCF8563TF4 NXP Semiconductors, PCF8563TF4 Datasheet - Page 23

• Manufacturer Part Number: PCF8563TF4
• Manufacturer: NXP Semiconductors

Specifications of PCF8563TF4

• Bus Type: Serial (2-Wire, I2C)
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Package Type: SO
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 1.8V
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 8
• Mounting: Surface Mount
• Date Format: DW:DM:M:Y
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Compliant

NXP Semiconductors
PCF8563
Product data sheet
9.5.1 Addressing
9.5.2 Clock and calendar READ or WRITE cycles
9.5 I
Before any data is transmitted on the I
addressed first. The addressing is always carried out with the first byte transmitted after
the start procedure.
The PCF8563 acts as a slave receiver or slave transmitter. Therefore the clock signal SCL
is only an input signal, but the data signal SDA is a bidirectional line.
Two slave addresses are reserved for the PCF8563:
The PCF8563 slave address is illustrated in
The I
Figure
which register is to be accessed next. The upper four bits of the register address are not
used.
2
Fig 18. Slave address
Fig 19. Master transmits to slave receiver (WRITE mode)
C-bus protocol
Read: A3h (10100011)
Write: A2h (10100010)
2
C-bus configuration for the different PCF8563 READ and WRITE cycles is shown in
19,
Figure 20
S
SLAVE ADDRESS
All information provided in this document is subject to legal disclaimers.
and
Rev. 8 — 18 November 2010
Figure
acknowledgement
R/W
from slave
0 A
1
21. The register address is a 4-bit value that defines
REGISTER ADDRESS A
group 1
0
2
1
C-bus, the device which should respond is
0
Figure
0
acknowledgement
group 2
from slave
0
18.
1
mce189
R/W
n bytes
DATA
Real-time clock/calendar
memory register address
auto increment
acknowledgement
from slave
PCF8563
© NXP B.V. 2010. All rights reserved.
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