2
FN6755.1
March 3, 2011
Block Diagram
Ordering Information
PART
NUMBER
PART
MARKING
VDD RANGE
(V)
TEMP. RANGE
(°C)
PACKAGE
(Pb-Free)
PKG.
DWG. #
ISL12057IBZ (Notes
1, 2) 12057 IBZ
1.4 to 3.6
-40 to +85
8 Ld SOIC
M8.15
ISL12057IUZ (Notes
1, 2) 12057
1.4 to 3.6
-40 to +85
8 Ld MSOP
M8.118
ISL12057IRUZ-T
057
1.4 to 3.6
-40 to +85
8 Ld TDFN (Tape and Reel)
L8.2x2
ISL12057EVALZ
Evaluation Board
NOTES:
1. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte
tin plate plus anneal (e3 termination finish, which is 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.
2. Add “-T*” suffix for tape and reel. Please refer to
TB347 for details on reel specifications.
3. These Intersil Pb-free plastic packaged products employ special Pb-free material sets; molding compounds/die attach materials and NiPdAu
plate - e4 termination finish, which is 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.
4. Please refer to
TB347 for details on reel specifications.
I2C
INTERFACE
RTC
CONTROL
LOGIC
ALARM2
FREQUENCY
OUT
RTC
DIVIDER
SDA
BUFFER
CRYSTAL
OSCILLATOR
POR
SCL
BUFFER
SDA
SCL
X1
X2
VDD
INTERNAL
SUPPLY
SECONDS
MINUTES
HOURS
DAY OF WEEK
DATE
MONTH
YEAR
CONTROL
REGISTERS
ALARM1
IRQ2
IRQ1/FOUT
ISL12057