PCA8565BS/1-T NXP Semiconductors, PCA8565BS/1-T Datasheet - Page 13

• 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
9.6.1 Alarm registers
9.6.2 Alarm flag
Table 18.
[1]
[2]
Table 19.
[1]
[2]
Table 20.
[1]
[2]
Table 21.
[1]
[2]
When all enabled comparisons first match, the Alarm Flag (AF) is set. AF will remain set
until cleared using the interface. Once AF has been cleared it is only set again when
the time increments to match the alarm condition once more.
Bit
7
6 to 4 MINUTE_ALARM
3 to 0
Bit
7
6
5 to 4 HOUR_ALARM
3 to 0
Bit
7
6
5 to 4 DAY_ALARM
3 to 0
Bit
7
6 to 3 -
2 to 0 WEEKDAY_ALARM 0 to 6
Default value.
Values shown in decimal.
Default value.
Values shown in decimal.
Default value.
Values shown in decimal.
Default value.
Values shown in decimal.
Symbol
AE_M
Symbol
AE_H
-
Symbol
AE_D
-
Symbol
AE_W
Register Minute_alarm (address 09h) bits description
Register Hour_alarm (address 0Ah) bits description
Register Day_alarm (address 0Bh) bits description
Register Weekday_alarm (address 0Ch) bits description
Rev. 02 — 16 June 2009
Value
0
1
-
Value
0
1
0 to 5
0 to 9
Value
0
1
-
0 to 2
0 to 9
Value
0
1
-
0 to 3
0 to 9
[1]
[1]
[1]
[1]
[2]
[2]
[2]
[2]
[2]
[2]
[2]
Description
weekday alarm is enabled
weekday alarm is disabled
unused
weekday alarm information coded in BCD format
Place value Description
-
-
ten’s place
unit place
Place value Description
-
-
-
ten’s place
unit place
Place value Description
-
-
-
ten’s place
unit place
minute alarm is enabled
minute alarm is disabled
minute alarm information coded in BCD
format
hour alarm is enabled
hour alarm is disabled
unused
hour alarm information coded in BCD
format
day alarm is enabled
day alarm is disabled
unused
day alarm information coded in BCD
format
Real time clock/calendar
PCA8565
© NXP B.V. 2009. All rights reserved.
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