ISL12027 Datasheet, PDF (2/28 Pages) Intersil Corporation – Real Time Clock/Calendar with EEPROM

ISL12027
Ordering Information
PART NUMBER
(Note)
ISL12027IB27Z
ISL12027IB27AZ
ISL12027IB30AZ
PART MARKING
12027IB27Z
12027IB27AZ
12027IB30AZ
V_RESET
VOLTAGE
2.63V
2.92V
3.09V
TEMP. RANGE
(°C)
-40 to +85
-40 to +85
-40 to +85
PACKAGE
(Pb-Free)
8 Ld SOIC
8 Ld SOIC
8 Ld SOIC
PKG DWG. #
M8.15
M8.15
M8.15
ISL12027IBZ
12027IBZ
4.38V
-40 to +85
8 Ld SOIC
M8.15
ISL12027IBAZ
12027IBAZ
4.64V
-40 to +85
8 Ld SOIC
M8.15
ISL12027IV27Z
2027I27Z
2.63V
-40 to +85
8 Ld TSSOP
M8.173
ISL12027IV27AZ
202727AZ
2.92V
-40 to +85
8 Ld TSSOP
M8.173
ISL12027IV30AZ
202730AZ
3.09V
-40 to +85
8 Ld TSSOP
M8.173
ISL12027IVZ
2027IVZ
4.38V
-40 to +85
8 Ld TSSOP
M8.173
ISL12027IVAZ
2027IVAZ
4.64V
-40 to +85
8 Ld TSSOP
M8.173
NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
Add “-T” suffix for tape and reel.
Block Diagram
X1
32.768kHz
X2
OSC Compensation
Oscillator
Frequency 1Hz
Divider
Timer
Calendar
Logic
Time
Keeping
Registers
(SRAM)
SCL
SDA
Serial
Interface
Decoder
RESET
Control
Decode
Logic
8
Control/
Registers
(EEPROM)
Status
Registers
(SRAM)
Alarm
Watchdog
Timer
Low Voltage
Reset
Compare
Alarm Regs
(EEPROM)
4K
EEPROM
ARRAY
Battery
Switch
Circuitry
V_DD
V_BAT
2
FN8232.4
October 18, 2006