ISL1208IB8 Intersil, ISL1208IB8 Datasheet - Page 3

• Manufacturer Part Number: ISL1208IB8
• Description: IC RTC/CALENDAR I2C 8-SOIC
• Manufacturer: Intersil
• Type: Clock/Calendar/NVSRAMr

Specifications of ISL1208IB8

• Memory Size: 2B
• 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-SOIC (3.9mm Width)
• Bus Type: Serial (I2C)
• Operating Supply Voltage (typ): 3.3/5V
• Package Type: SOIC
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Pin Count: 8
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Pin Descriptions
NUMBER SYMBOL
PIN
1
2
3
4
5
6
7
8
IRQ/FOUT Interrupt Output/Frequency Output is a multi-functional pin that can be used as interrupt or frequency output pin. The function
VBAT
GND
VDD
SDA
SCL
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. X1 can also be driven directly from a 32.768kHz source.
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.
This input provides a backup supply voltage to the device. V
fails. This pin should be tied to ground if not used.
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.
is set via the configuration register.
Power supply
3
ISL1208
DESCRIPTION
BAT
supplies power to the device in the event that the V
September 12, 2008
DD
FN8085.8
supply