PCA8565BS/1-T NXP Semiconductors, PCA8565BS/1-T Datasheet - Page 12

• Manufacturer Part Number: PCA8565BS/1-T
• Description: Real Time Clock AUTOMOTIVE CLOCK/CAL
• Manufacturer: NXP Semiconductors

Specifications of PCA8565BS/1-T

• Bus Type: Serial (2-Wire, I2C)
• Operating Supply Voltage (typ): 2.5/3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 1.8V
• Operating Temperature (min): -40C
• Pin Count: 10
• Mounting: Surface Mount
• Date Format: DW:DM:M:Y
• Time Format: HH:MM:SS
• Mounting Style: SMD/SMT
• Package / Case: HVSON
• Lead Free Status / RoHS Status: Compliant
• Other names: PCA8565BS/1,118

NXP Semiconductors
PCA8565_2
Product data sheet
9.6 Alarm function
10. Read the register Months_century.
11. Read the register Years.
12. Send a STOP condition.
When one or more of the alarm registers are loaded with a valid minute, hour, day or
weekday and its corresponding bit alarm enable (AE_x) is logic 0, then that information is
compared with the actual minute, hour, day and weekday.
3. Send a RESTART condition or STOP followed by START.
4. Send the slave address for read (A3h).
5. Read the register Seconds.
6. Read the register Minutes.
7. Read the register Hours.
8. Read the register Days.
9. Read the register Weekdays.
Fig 6.
(1) Only when all enabled alarm settings are matching.
It’s only on increment to a matched case that the alarm is set, see
Alarm function block diagram
check now signal
WEEKDAY ALARM
MINUTE ALARM
WEEKDAY TIME
HOUR ALARM
MINUTE TIME
DAY ALARM
HOUR TIME
DAY TIME
Rev. 02 — 16 June 2009
=
=
=
=
AE_M
AE_W
AE_H
AE_D
set alarm flag, AF
AE_M= 1
example
013aaa088
Section
Real time clock/calendar
1
0
9.6.2.
(1)
PCA8565
© NXP B.V. 2009. All rights reserved.
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