ISL12022MIBZ-T Intersil, ISL12022MIBZ-T Datasheet - Page 2

• Manufacturer Part Number: ISL12022MIBZ-T
• Description: IC RTC/CALENDAR TEMP SENS 20SOIC
• Manufacturer: Intersil
• Type: Clock/Calendarr

Specifications of ISL12022MIBZ-T

• Memory Size: 128B
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: I²C, 2-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ISL12022MIBZ-TCT

Pin Descriptions
Block Diagram
Pin Configuration
1, 2, 3, 4, 5,
17, 18, 19,
9, 10, 16,
NUMBER
PIN
20
11
7
SYMBOL
V
SDA
V
NC
GND
BAT
SDA
V
SCL
BAT
DD
V
TRIP
No Connection. Do not connect to a signal or supply voltage.
Backup Supply. This input provides a backup supply voltage to the device. VBAT supplies power to
the device in the event that the VDD supply fails. This pin can be connected to a battery, a
supercapacitor or tied to ground if not used. See the Battery Monitor parameter in the “DC Operating
Characteristics-RTC” table on page 4. This pin should be tied to ground if not used.
Serial Data. SDA is a bi-directional pin used to transfer data into and out of the device. It has an
open drain output and may be OR’ed with other open drain or open collector outputs. The input buffer
is always active (not gated) in normal mode.
An open drain output requires the use of a pull-up resistor. The output circuitry controls the fall time
of the output signal with the use of a slope controlled pull-down. The circuit is designed for 400kHz
I
2
+
C interface speeds. It is disabled when the backup power supply on the VBAT pin is activated.
-
2
BUFFER
BUFFER
SDA
SCL
OSCILLATOR
CRYSTAL
TEMPERATURE
SENSOR
POR
INTERNAL
V
GND
GND
INTERFACE
SWITCH
SUPPLY
BAT
NC
NC
NC
NC
NC
NC
NC
I
2
ISL12022M
C
FREQUENCY
(20 LD SOIC)
FREQUENCY
CONTROL
1
2
3
4
5
6
7
8
9
10
ISL12022M
DIVIDER
TOP VIEW
OUT
RTC
20
19
18
17
16
15
14
13
12
11
DESCRIPTION
REGISTERS
CONTROL
ALARM
LOGIC
NC
NC
NC
NC
NC
GND
V
IRQ/F
SCL
SDA
DD
OUT
DAY OF WEEK
REGISTERS
SECONDS
MINUTES
CONTROL
MONTH
HOURS
SRAM
DATE
YEAR
USER
IRQ/F
OUT
June 4, 2010
FN6668.7