ISL12022M-R5421 INTERSIL [Intersil Corporation], ISL12022M-R5421 Datasheet - Page 9

• Manufacturer Part Number: ISL12022M-R5421
• Description: Providing high-performance solutions for every link in the signal chain
• Manufacturer: INTERSIL [Intersil Corporation]

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ISL12025
With Integrated EEPROM and CPU Supervisory Functions
ISL12026
ISL12026A
ISL12027
ISL12028
ISL12029
With 50/60 Cycle AC Input
ISL12030
ISL12032
High Precision RTC with On-Chip Temperature Sensor
ISL12022
ISL12023
With Embedded Unique ID
ISL12024
ISL12024IRTCZ
Device
Feature-Rich RTCs
Low Power RTC
with Battery Backed
SRAM and 50/60
Cycle AC Input and
Xtal Back-up
Key Features
• Longer Super Capacitor Life
• Power Failure Safety Feature
• Security and Event Functions
• User Programmability
• See Also
- Integrated trickle charger
- Four selectable charging rates
- Dynamically switch from AC clock input to
- Stores first and last three event time stamps
- I
- 128 bytes battery- backed user SRAM
- ISL12030 (Industry-Standard 8-lead SOIC
crystal
package)
2
C interface
1000
1000
(nA)
I
N/A
800
850
850
850
850
850
850
850
BAT
Alarms
2
2
1
1
2
2
2
2
2
2
2
Frequency
Selectable
Output
15
15
N
7
3
3
3
3
3
CPU Supervisory
POR
N
N
N
N
N
N
N
Y
Y
Y
Y
Function
Watch-
Timer
dog
N
N
N
N
N
Y
N
N
Y
Y
Y
Seal
N
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Battery
Backup
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
µP
Feature-Rich RTC with 50/60 Cycle AC Input
Dedicated
IRQ
Pin
Y
Y
-
-
AC Clock
F
Shared Pin
Shared Pin
Shared Pin
Shared Pin
Shared Pin
Shared Pin
OUT
50/60Hz AC Input
AC input line
provides long term,
high accuracy, and
eliminates the need
for an external crystal.
I
2
C
Dedicated
Redundant Crystal Input
(ISL12032) for Clock
F
Pin
OUT
N
Y
-
-
ISL12032
Oscillator
AC Clock
Interface
Decoder
Crystal
Serial
Input
Intersil Signal Path Products  2012  www.intersil.com
512x8-Bit EEPROM
512x8-Bit EEPROM
512x8-Bit EEPROM
512x8-Bit EEPROM
512x8-Bit EEPROM
512x8-Bit EEPROM
512x8-Bit EEPROM
128 Bytes
128 Bytes
128 Bytes
128 Bytes
SRAM
Functions
V
Power On
Brownout
DD
Battery
Monitor
Monitor
Power
Reset
Status
Power
Dynamically Switch
• AC Input
• AC Input
• Crystal Backup
• Trickle Charger
• Battery Switchover Time
• Battery Status Monitor
• Battery Switchover Time
• Battery Status Monitor
• 64-bit Unique ID
• 64-bit Unique ID
• 64-bit Unique ID
• CPU Supervisor
User SRAM
Calendar
Battery-
Stamp
Stamp
Feature-Rich RTC: ISL12032
backed
Clock
Dual Alarms
Other Functions
Trickle Charger
Event Detect
Battery Switch
with Time
Circuitry &
2 Alarms
Stamp
Integrated
Trickle Charger
8 Ld SOIC
14 Ld TSSOP
8 Ld SOIC
14 Ld TSSOP
8 Ld SOIC, 8 Ld TSSOP
8 Ld TDFN
8 Ld SOIC, 8 Ld TSSOP
8 Ld SOIC, 8 Ld TSSOP
8 Ld SOIC, 8 Ld TSSOP
8 Ld SOIC, 8 Ld TSSOP
14 Ld SOIC,
14 Ld TSSOP
1.8V to 5.5V
2.7V to 5.5V
V BAT
V DD
Package
Battery or
SuperCap
9