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DS1305 Datasheet(PDF) 1 Page - Dallas Semiconductor

Part No. DS1305
Description  Serial Alarm Real-Time Clock
Download  21 Pages
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Manufacturer  DALLAS [Dallas Semiconductor]
Direct Link  https://www.maximintegrated.com/en.html
Logo DALLAS - Dallas Semiconductor

DS1305 Datasheet(HTML) 1 Page - Dallas Semiconductor

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REV: 070705
FEATURES
§ Real-Time Clock (RTC) 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, Battery-Backed NV RAM for Data
Storage
§ Two Time-Of-Day Alarms, Programmable
on Combination of Seconds, Minutes, Hours,
and Day of the Week
§ Supports Motorola SPI
(Serial Peripheral
Interface) Modes 1 and 3 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
§ 2.0V to 5.5V Operation
§ Optional Industrial Temperature Range:
-
40°C to +85°C
§ Available in Space-Efficient, 20-Pin TSSOP
Package
§ Underwriters Laboratory (UL) Recognized
PIN CONFIGURATIONS
TYPICAL OPERATING CIRCUIT
www.maxim-ic.com
DS1305
Serial Alarm Real-Time Clock
SPI is a trademark of Motorola, Inc.
VCC2
1
16
VCC1
VBAT
2
15
PF
X1
3
14
VCCIF
X2
4
13
SDO
N.C.
5
12
SDI
INT0
6
11
SCLK
INT1
7
10
CE
GND
8
9
SERMODE
DIP (300 mils)
DS1305
VCC2
1
20
VCC1
VBAT
2
19
N.C.
X1
3
18
PF
N.C.
4
17
VCCIF
X2
5
16
SD0
N.C.
6
15
SDI
INT0
7
14
SCLK
N.C.
8
13
N.C.
INT1
9
12
CE
GND
10
11
SERMODE
DS1305
TSSOP (4.4mm)
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