PCF8593TD NXP Semiconductors, PCF8593TD Datasheet - Page 16

• Manufacturer Part Number: PCF8593TD
• Description: Real Time Clock LO PWR CLOCK/CAL
• Manufacturer: NXP Semiconductors

Specifications of PCF8593TD

• Function: Alarm, Timer Interrupt
• Rtc Memory Size: 8 B
• Supply Voltage (max): 6 V
• Supply Voltage (min): 1 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial
• Package / Case: SOT-96
• Time Format: HH:MM:SS:hh
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: PCF8593T/1,112

NXP Semiconductors
PCF8593
Product data sheet
8.2.1 Addressing
8.2.2 Clock and calendar READ or WRITE cycles
8.2 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 clock and calendar acts as a slave receiver or slave transmitter. The clock signal SCL
is only an input signal but the data signal SDA is a bidirectional line.
The clock and calendar slave address is shown in
Table 5.
The I
Figure
Bit
2
Fig 18. Master transmits to slave receiver (WRITE mode)
C-bus protocol
2
C-bus configuration for the different PCF8593 READ and WRITE cycles is shown in
18,
Slave address
7
MSB
1
Figure 19
S
I
2
C slave address byte
SLAVE ADDRESS
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6
0
and
Rev. 04 — 6 October 2010
Figure
acknowledgement
R/W
from slave
0 A
5
1
20.
REGISTER ADDRESS A
2
C-bus, the device which must respond is
4
0
acknowledgement
from slave
3
0
Table
5.
Low power clock and calendar
n bytes
2
0
DATA
memory register address
auto increment
acknowledgement
from slave
1
1
PCF8593
© NXP B.V. 2010. All rights reserved.
A
013aaa346
P
0
LSB
R/W
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