DS1305E+ Maxim Integrated Products, DS1305E+ Datasheet - Page 16
![IC RTC SERIAL ALARM 20-TSSOP](/photos/6/52/65243/175-20-tssop_sml.jpg)
DS1305E+
Manufacturer Part Number
DS1305E+
Description
IC RTC SERIAL ALARM 20-TSSOP
Manufacturer
Maxim Integrated Products
Type
Clock/Calendar/Alarmr
Datasheet
1.DS1305E.pdf
(22 pages)
Specifications of DS1305E+
Memory Size
96B
Time Format
HH:MM:SS (12/24 hr)
Date Format
YY-MM-DD-dd
Interface
SPI, 3-Wire Serial
Voltage - Supply
2 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
20-TSSOP
Function
Clock/Calendar/Alarm
Rtc Memory Size
96 Byte
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2 V
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Rtc Bus Interface
Serial (3-Wire, SPI)
Supply Current
1.28 mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
DC ELECTRICAL CHARACTERISTICS
(Over the operating range, unless otherwise specified.)
CAPACITANCE
(T
Input Leakage
Output Leakage
Logic 0
Output
Logic 1
Output
V
V
(Osc on)
V
(Osc off)
V
V
(Osc on)
V
(Osc off)
Battery Timekeeping Current
Battery Standby Current
V
Trickle Charge Resistors
Trickle Charge Diode
Voltage Drop
Input Capacitance
Output Capacitance
A
CC1
CC1
CC1
CC2
CC2
CC2
CC
= +25C)
Trip Point
Active Supply Current
Timekeeping Current
Standby Current
Active Supply Current
Timekeeping Current
Standby Current
PARAMETER
PARAMETER
I
I
I
I
OL
OL
OH
OH
= 1.5mA
= 4.0mA
= -0.4mA
= -1.0mA
V
I
I
I
I
I
I
I
V
V
I
V
CC1A
CC1T
CC1S
CC2A
CC2T
CC2S
BATS
I
R1
R2
R3
I
BAT
CCTP
LO
LI
OH
OL
TD
SYMBOL
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
SYMBOL
CC
CC
CCIF
CCIF
CC1
CC1
CC1
CC1
CC1
CC1
CC2
CC2
CC2
CC2
CC2
CC2
BAT
BAT
C
C
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 2.0V
= 5V
= 3V
= 3V
O
= 2.0V
= 5V
I
16 of 22
MIN
V
BAT
MIN
-100
1.6
2.4
-1
- 50
TYP
10
15
TYP
0.7
2
4
8
MAX
V
MAX
0.425
+500
1.28
25.3
200
200
400
200
200
BAT
0.4
0.4
0.4
1.2
0.3
81
25
80
1
1
+
UNITS
pF
pF
UNITS
mA
mA
mV
µA
µA
μA
μA
µA
k
nA
nA
nA
V
V
V
NOTES
NOTES
1, 8, 12
6, 8, 12
1, 9, 12
6, 9, 12
10, 12
10, 12
2, 8
2, 9