DS1216F

Series: -
Voltage - Supply: 4.5 V ~ 5.5 V
Operating Temperature: 0°C ~ 70°C
Packaging: Tube
Manufacturer: Maxim Integrated Products
Controller Type: Smartwatch ROM
Package / Case: 32-DIP (0.600", 15.24mm) Socket
Supplier Device Package: 32-DIP Socket


Features:

 Adds timekeeping to any 32pin JEDEC bytewide memory location
Embedded lithium energy cell maintains calendar time for more than 10 years in the absence of power
Timekeeping function is transparent to memory operation
Keeps track of hundredths of seconds, seconds, minutes, hours, days, date of the month, months, and years
Month and year determine the number of days in each month; leap year compensation valid up to 2100
Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time
Proven gastight socket contacts
Full ±10% V_CC operating range
Operating temperature range 0°C to 70°C
Accuracy is better than ±1 minute/month @ 25°C


Pinout




Description

The DS1216F SmartWatch/ROM is a 32pin, 600-mil wide DIP socket with a builtin CMOS timekeeper and an embedded lithium energy source to maintain time and date. DS1216F accepts any 32pin bytewide ROM or volatile RAM. A key feature of the SmartWatch is that the timekeeping function remains transparent to the memory device placed above. The DS1216F monitors VCC for an outoftolerance condition. When such a condition occurs, an internal lithium energy source automatically switches on to prevent loss of time and calendar data.

Using the DS1216F saves PC board space since the combination of SmartWatch and the mated memory device takes up no more area than the memory alone. The DS1216F uses pins 1, 10, 12, 13, 22, and 24 for timekeeper control. All pins pass through to the socket receptacle except for pin 22 (CE ), which is inhibited during the transfer of time information.

See the DS1216E SmartWatch/ROM/64/256K data sheet for technical details.

Parameters:

Technical/Catalog Information	DS1216F
Vendor	Dallas Semiconductor
Category	Integrated Circuits (ICs)
Controller Type	Smartwatch ROM
Voltage - Supply	4.5 V ~ 5.5 V
Package / Case	32-SOIC
Packaging	Tube
Operating Temperature	0°C ~ 70°C
Lead Free Status	Contains Lead
RoHS Status	RoHS Non-Compliant
Other Names	DS1216F DS1216F