DS1305E View Datasheet(PDF) - Dallas Semiconductor -> Maxim Integrated
Part Name
Description
Manufacturer
DS1305E Datasheet PDF : 22 Pages
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DS1305
Serial Alarm Real Time Clock (RTC)
www.dalsemi.com
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
96-byte nonvolatile RAM for data storage
Two time-of-day alarms programmable on
combination of seconds, minutes, hours and
day of the week
Serial interface supports Motorola serial
peripheral interface (SPI) serial data ports or
standard 3-wire interface
Burst mode for reading/writing successive
addresses in clock/RAM
Dual power supply pins for primary and
backup power supplies
Optional trickle charge output to backup
supply
2.0 - 5.5V operation
Optional industrial temperature range
-40°C to +85°C
Available in space-efficient, 20-pin TSSOP
package
Recognized by Underwriters Laboratory
ORDERING INFORMATION
DS1305
16-Pin DIP
DS1305N
16-Pin DIP (Industrial)
DS1305E
20-Pin TSSOP
DS1305EN 20-Pin TSSOP (Industrial)
PIN ASSIGNMENT
VCC2
1
VBAT
2
X1
3
NC
4
X2
5
NC
6
INT0 7
NC
8
INT1 9
GND 10
20
VCC1
19 NC
18 PF
17
VCCIF
16 SD0
15 SDI
14 SCLK
13 NC
12 CE
11 SERMODE
DS1305 20-Pin TSSOP (173 mil)
VCC2
1
VBAT
2
X1
3
X2
4
NC
5
INT0 6
INT1 7
GND 8
16
VCC1
15 PF
14
VCCIF
13 SDO
12 SDI
11 SCLK
10 CE
9
SERMODE
DS1305 16-Pin DIP (300 mil)
1 of 22
070900
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