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PCF85363ATL/A bảng dữ liệu(PDF) 60 Page - NXP Semiconductors

tên linh kiện PCF85363ATL/A
Giải thích chi tiết về linh kiện  Tiny Real-Time Clock/calendar with 64 byte RAM, alarm function, battery switch-over time stamp input, and I2C-bus
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NXP Semiconductors
PCF85363A
Tiny Real-Time Clock/calendar with 64 byte RAM, alarm function, battery switch-over time stamp input,
and I2C-bus
9.3.1 Slave address
One I2C-bus slave address (1010  001) is reserved for the PCF85363A. The entire I2C-
bus slave address byte is shown in Table 64.
Slave address
7
0
Bit
MSB
6
5
4
3
2
1
LSB
1
0
1
0
0
0
1
R/W
Table 64. I2C slave address byte
After a START condition, the I2C slave address has to be sent to the PCF85363A device.
Slave address can also be written in a hexadecimal format:
• A2h - Write slave address
• A3h - Read slave address
10 Application design-in information
In this application, stop-watch mode is used to implement an elapsed time counter. The
TS pin is used with a mechanical switch to start and stop the time. Each time the time is
stopped, timestamp2 is loaded with the current time and an interrupt is generated on the
INTA pin.
sample
invert
mechanical
switch detector
vdd_int
TS pin
sample
clock, 16 Hz
TSL
aaa-010560
STOP
control
STOPM
Time
counter
stop
TSR2
load
TSR2
flag
INTA
gen.
INTA
VSS
Figure 34. Application example
PCF85363A
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2021. All rights reserved.
Product data sheet
Rev. 3.1 — 18 June 2021
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