DS1306E+ Maxim Integrated Products, DS1306E+ Datasheet - Page 2

• Manufacturer Part Number: DS1306E+
• Description: IC RTC SERIAL ALARM 20-TSSOP
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/Alarmr

Specifications of DS1306E+

• 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

ORDERING INFORMATION
+Denotes a lead(Pb)-free/RoHS-compliant package
T&R = Tape and reel.
*An “N” on the top mark indicates an industrial device.
PIN DESCRIPTION
DS1306
DS1306+
DS1306N
DS1306N+
DS1306E
DS1306E+
DS1306EN
DS1306EN+
DS1306EN/T&R
DS1306EN+T&R
DS1306E/T&R
DS1306E+T&R
TSSOP
1
3
5
7
8
2
PIN
PART
DIP
1
2
3
4
5
6
NAME
INT0
INT1
V
V
X1
X2
BAT
CC2
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
Backup Power Supply. This is the secondary power supply pin. In systems
using the trickle charger, the rechargeable energy source is connected to this
pin.
Battery Input for Any Standard +3V Lithium Cell or Other Energy
Source. If not used, V
placed in series between V
result. UL recognized to ensure against reverse charging current when used
in conjunction with a lithium battery. See “Conditions of Acceptability” at
www.maxim-ic.com/TechSupport/QA/ntrl.htm.
Connections for Standard 32.768kHz Quartz Crystal. The internal
oscillator is designed for operation with a crystal having a specified load
capacitance of 6pF. For more information on crystal selection and crystal
layout considerations, refer to Application Note 58, “Crystal Considerations
with Dallas Real-Time Clocks.” The DS1306 can also be driven by an
external 32.768kHz oscillator. In this configuration, the X1 pin is connected
to the external oscillator signal and the X2 pin is floated.
Active-Low Interrupt 0 Output. The INT0 pin is an active-low output of
the DS1306 that can be used as an interrupt input to a processor. The INT0
pin can be programmed to be asserted by Alarm 0. The INT0 pin remains
low as long as the status bit causing the interrupt is present and the
corresponding interrupt enable bit is set. The INT0 pin operates when the
DS1306 is powered by V
output and requires an external pullup resistor.
Interrupt 1 Output. The INT1 pin is an active-high output of the DS1306
that can be used as an interrupt input to a processor. The INT1 pin can be
programmed to be asserted by Alarm 1. When an alarm condition is present,
the INT1 pin generates a 62.5ms active-high pulse. The INT1 pin operates
only when the DS1306 is powered by V
pin is internally pulled up to V
internally pulled low.
2 of 22
PIN-PACKAGE
16 DIP (300 mils)
16 DIP (300 mils)
16 DIP (300 mils)
16 DIP (300 mils)
20 TSSOP (173 mils)
20 TSSOP (173 mils)
20 TSSOP (173 mils)
20 TSSOP (173 mils)
20 TSSOP (173 mils)
20 TSSOP (173 mils)
20 TSSOP (173 mils)
20 TSSOP (173 mils)
BAT
CC1
must be connected to ground. Diodes must not be
BAT
, V
and the battery, or improper operation will
CC2
CC2
FUNCTION
, or V
or V
BAT
BAT
CC2
. When inactive, the INT1 pin is
. The INT0 pin is an open-drain
or V
BAT
TOP MARK*
DS1306
DS1306 +
DS1306N
DS1306N +
DS1306
DS1306 +
DS1306N
DS1306N +
DS1306N
DS1306N +
DS1306
DS1306 +
. When active, the INT1