ISL12024IRTCZ-T Intersil, ISL12024IRTCZ-T Datasheet - Page 2

• Manufacturer Part Number: ISL12024IRTCZ-T
• Description: IC RTC/CALENDER 64BIT 8-TDFN
• Manufacturer: Intersil
• Type: Clock/Calendar/EEPROMr

Specifications of ISL12024IRTCZ-T

• Memory Size: 4K (512 x 8)
• 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: 8-TDFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Block Diagram
Pin Descriptions
NUMBER
IRQ/F
TDFN
PIN
1
2
3
4
5
6
7
8
OUT
SCL
SDA
32.768kHz
IRQ/F
SYMBOL
INTERFACE
DECODER
FVBAT
GND
SDA
VDD
SERIAL
SCL
X1
X2
SELECT
OUT
X1
X2
The X1 pin is the input of an inverting amplifier and is intended to be connected to one pin of an external 32.768kHz
quartz crystal.
The X2 pin is the output of an inverting amplifier and is intended to be connected to one pin of an external 32.768kHz
quartz crystal. (See “Application Section” on page 20.)
Interrupt Output/Frequency Output is a multi-functional pin that can be used as interrupt or frequency output pin. The
function is set via the control register. This output is an open drain configuration.
Ground.
Serial Data (SDA) is a bidirectional pin used to transfer serial data into and out of the device. It has an open drain
output and may be wire OR’ed with other open drain or open collector outputs.
The Serial Clock (SCL) input is used to clock all serial data into and out of the device. The input buffer on this pin is
always active (not gated).
This input provides a backup supply voltage to the device. V
V
Power Supply.
CONTROL
DD
DECODE
8
2
LOGIC
supply fails. This pin should be tied to ground if not used.
REGISTERS
CONTROL/
(EEPROM)
OSCILLATOR
COMPENSATION
OSC
ISL12024IRTCZ
REGISTERS
FREQUENCY
STATUS
(SRAM)
DIVIDER
1Hz
DESCRIPTION
CALENDAR
ALARM
TIMER
LOGIC
BAT
supplies power to the device in the event that the
ALARM REGS
REGISTERS
EEPROM
COMPARE
(EEPROM)
KEEPING
ARRAY
(SRAM)
TIME
4k
CIRCUITRY
BATTERY
SWITCH
August 8, 2008
VDD
VBAT
FN6749.0