karen8023
05-06-2008, 12:59 PM
FEATURES
§ Real time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year compensation valid up to 2100
§ 31 x 8 RAM for scratchpad data storage
§ Serial I/O for minimum pin count
§ 2.0–5.5 volt full operation
§ Uses less than 300 nA at 2.0 volts
§ Single–byte or multiple–byte (burst mode) data transfer for read or write of clock or RAM data
§ 8–pin DIP or optional 8–pin SOICs for surface mount
§ Simple 3–wire interface
§ TTL–compatible (VCC = 5V)
§ Optional industrial temperature range –40°C to +85°C
§ DS1202 compatible
§ Added features over DS1202
§ Optional trickle charge capability to VCC1
§ Dual power supply pins for primary and backup power supplies
§ Backup power supply pin can be used for battery or super cap input
§ Additional scratchpad memory (7 bytes)
http://www.dzsc.com/data/uploadfile/200856195442900.jpg
pdf data: http://www.chinaicmart.com/suppliers/281/DS1302.html (http://www.chinaicmart.com/suppliers/281/DS1302.html)
§ Real time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year compensation valid up to 2100
§ 31 x 8 RAM for scratchpad data storage
§ Serial I/O for minimum pin count
§ 2.0–5.5 volt full operation
§ Uses less than 300 nA at 2.0 volts
§ Single–byte or multiple–byte (burst mode) data transfer for read or write of clock or RAM data
§ 8–pin DIP or optional 8–pin SOICs for surface mount
§ Simple 3–wire interface
§ TTL–compatible (VCC = 5V)
§ Optional industrial temperature range –40°C to +85°C
§ DS1202 compatible
§ Added features over DS1202
§ Optional trickle charge capability to VCC1
§ Dual power supply pins for primary and backup power supplies
§ Backup power supply pin can be used for battery or super cap input
§ Additional scratchpad memory (7 bytes)
http://www.dzsc.com/data/uploadfile/200856195442900.jpg
pdf data: http://www.chinaicmart.com/suppliers/281/DS1302.html (http://www.chinaicmart.com/suppliers/281/DS1302.html)