ISL12020M_11 Datasheet, PDF (5/6 Pages) Intersil Corporation – High-Accuracy RTC Modules, Feature-Rich RTCs

INTERSIL SELECTION GUIDE
REAL TIME CLOCK ICs
Low-Cost, Low-Power RTCs
Low Power, with
IRQs, Alarm and
Timer
ISL12057,
ISL12058,
ISL12059
Micro-Power, Low Cost, Small RTC
Provides Significant PCB Real-Estate
Savings
The ISL12057/8/9 offer a cost-improved 3-Volt
alternative to the most popular low-accuracy
timekeeping products, with operation down to
1.4V for battery-powered, portable applications.
Key Features
• Real time clock and calendar
• Low standby current
• Multiple selectable frequency outputs
• Selectable alarms
• I²C interface
• Operates over 1.4V to 3.6V supplies
• Variety of popular compact packages)
ISL12057
• Drop-in replacement for DS1337
• Features operation down to 1.4V, TDFN package, and competitive
price
ISL12058
Cost-reduced alternative
to ISL1208 with added
advantage of 3V
operation.
ISL12059
• Improved alternative to ST M41T00S
• Features operation down to 1.4V and competitive price
Low-Cost, Low-Power RTCs
Device
CPU Supervisory
Selectable
Function
I_BAT
Frequency
(nA) Alarms Output POR
Watchdog
Timer
With Battery Backup
ISL12008 800
1
1
N
N
ISL12082 800
1
4
N
N
With Battery Backed SRAM
ISL1208
400
1
15
N
N
ISL1218
400
1
15
N
N
ISL1220
400
1
15
N
N
With Battery Backed SRAM and Event Detection
ISL1209
400
1
15
N
N
ISL1219
400
1
15
N
N
ISL1221
400
1
15
N
N
With IRQs, Alarm and Timer
ISL12057 400
2
4
N
N
ISL12058 400
2
4
N
N
ISL12059 400
0
1
N
N
Battery
Seal Backup
IRQ
F_OUT
SRAM
Other
Functions
Package
Y
Y
-
Dedicated Pin
Y
Y
Dedicated Pin Dedicated Pin
N • Timer
8 Ld SOIC
10 Ld MSOP, 8 Ld SOIC
Y
Y
Shared Pin
2 Bytes
Y
Y
Shared Pin
8 Bytes
Y
Y
Dedicated Pin Dedicated Pin 8 Bytes
8 Ld MSOP, 8 Ld SOIC,
8 Ld TDFN
8 Ld MSOP, 8 Ld SOIC
10 Ld MSOP
Y
Y
Shared Pin
2 Bytes • Event Detect 10 Ld MSOP
Y
Y
Shared Pin
• Event Detect
2 Bytes
10 Ld MSOP
• Time Stamp
• Event Detect
Y
Y
Dedicated Pin Dedicated Pin 2 Bytes
10 Ld MSOP
• Time Stamp
N
N
N
N
N
N
Shared Pin
Shared Pin
Shared Pin
N • 3V
N • 3V
N • 3V
8 Ld SOIC, 8 Ld MSOP,
8 Ld TDFN
8 Ld SOIC, 8 Ld MSOP,
8 Ld TDFN, 8 Ld µTDFN
8 Ld SOIC
www.intersil.com/timing