Manufacturer
Analog Devices Inc.
Analog Devices Inc./Maxim Integrated
Dallas Semiconductor
Intersil
Microchip Technology
National Semiconductor
NXP USA Inc.
Renesas Electronics America Inc.
STMicroelectronics
Texas Instruments
Series
*
-
2-Wire™
Automotive, AEC-Q100
EconoRAM
LV8571A
Timekeeper®
Timekeeper®, CAPHAT™
Package
Bag
Bulk
Strip
Tape & Reel (TR)
Tray
Tube
Product Status
Active
Discontinued at
Last Time Buy
Not For New Designs
Obsolete
Type
-
Binary Counter
Clock/Calendar
Clock/Calendar/Supervisor
Elapsed Time Counter
Phantom Time Chip
Portable System Controller
Real Time Clock (RTC)
Temperature Recorder
Time Event Recorder
Timer Clock Peripheral (TCP)
with Temp. Recorder
Features
-
Alarm
Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output
Alarm, Daylight Savings, Leap Year, RAM
Alarm, Daylight Savings, Leap Year, SRAM
Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer
Alarm, Daylight Savings, NVRAM, NVSRAM, Square Wave Output, Y2K
Alarm, Daylight Savings, NVSRAM
Alarm, Daylight Savings, SRAM
Alarm, EEPROM
Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID
Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID, Watchdog Timer
Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer
Alarm, EEPROM, Leap Year, SRAM, Supervisor, Watchdog Timer, Y2K
Alarm, EEPROM, Leap Year, SRAM, Unique ID, Y2K
Alarm, EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer
Alarm, EEPROM, Leap Year, Supervisor, Watchdog Timer
Alarm, FRAM, Leap Year, Square Wave Output, TCXO/Crystal
Alarm, Leap Year
Alarm, Leap Year, NVRAM, Square Wave Output, SRAM, Supervisor, Trickle Charger, Watchdog Timer
Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger
Alarm, Leap Year, NVRAM, Square Wave Output, Trickle-Charger
Alarm, Leap Year, NVRAM, Square Wave Output, Watchdog Timer
Alarm, Leap Year, NVSRAM, Square Wave Output
Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer
Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger
Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer
Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K
Alarm, Leap Year, NVSRAM, Trickle-Charger
Alarm, Leap Year, NVSRAM, Watchdog Timer
Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K
Alarm, Leap Year, NVSRAM, Y2K
Alarm, Leap Year, RAM
Alarm, Leap Year, RAM, Square Wave Output, SRAM, Trickle Charger
Alarm, Leap Year, RAM, Square Wave Output, Trickle Charger
Alarm, Leap Year, RAM, Trickle Charger
Alarm, Leap Year, Square Wave Output
Alarm, Leap Year, Square Wave Output, SRAM
Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal
Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer
Alarm, Leap Year, Square Wave Output, SRAM, Unique ID
Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer
Alarm, Leap Year, Square Wave Output, Supervisor, Watchdog Timer, Y2K
Alarm, Leap Year, Square Wave Output, TCXO/Crystal
Alarm, Leap Year, Square Wave Output, TCXO/Crystal, Watchdog Timer
Alarm, Leap Year, Square Wave Output, Trickle-Charger
Alarm, Leap Year, Square Wave Output, Unique ID
Alarm, Leap Year, Square Wave Output, Watchdog Timer
Alarm, Leap Year, SRAM
Alarm, Leap Year, SRAM, Watchdog Timer
Alarm, Leap Year, Supervisor, Unique ID, Watchdog Timer
Alarm, Leap Year, Supervisor, Watchdog Timer
Alarm, Leap Year, Trickle-Charger
Alarm, Leap Year, Unique ID
Alarm, Leap Year, Unique ID, Y2K
Alarm, Leap Year, Watchdog Timer
Alarm, Leap Year, Watchdog Timer, Y2K
Alarm, NVRAM, Square Wave Output, Trickle-Charger, Watchdog Timer
Alarm, NVSRAM
Alarm, NVSRAM, Square Wave Output
Alarm, NVSRAM, Square Wave Output, Y2K
Alarm, Square Wave Output
Alarm, Square Wave Output, SRAM
Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer
Alarm, Square Wave Output, Watchdog Timer
Alarm, SRAM, Trickle-Charger
Alarm, Supervisor, Watchdog Timer
Audio, Leap Year, Trickle-Charger
EEPROM, Leap Year
EEPROM, Leap Year, NVSRAM
EEPROM, Leap Year, NVSRAM, RAM
EEPROM, Leap Year, RAM, SRAM
EEPROM, Leap Year, Supervisor, Trickle-Charger, Watchdog Timer
Leap Year
Leap Year, NVSRAM
Leap Year, NVSRAM, RAM, Trickle-Charger
Leap Year, NVSRAM, Square Wave Output
Leap Year, NVSRAM, Trickle-Charger
Leap Year, NVSRAM, Y2K
Leap Year, Square Wave Output, Trickle-Charger
Leap Year, Supervisor
Leap Year, Trickle-Charger
Leap Year, Watchdog Timer
NVSRAM
Square Wave Output, Unique ID
Trickle-Charger
Unique ID
Memory Size
-
10B
113B
114B
128B
128KB
16B
236B
240B
242B
256B
2B
2KB
2MB
31B
32B
32KB
3B
44B
4KB
50B
512B
512KB
512kb
56B
56b
56B, 8KB
64B
64B, 1Kb
7B
8B
8K
8KB
96B
Time Format
-
Binary
HH:MM:SS
HH:MM:SS (12/24 hr)
HH:MM:SS (24 hr)
HH:MM:SS:hh (12/24 hr)
HH:MM:SS:hh (24 hr)
Date Format
-
Binary
YY-MM-DD
YY-MM-DD-dd
YYYY-MM-DD
Interface
-
1-Wire® and 3-Wire
1-Wire® Serial
3-Wire Serial
3-Wire Serial, SPI
I²C
I²C, 2-Wire Serial
I²C, Serial
I²C, SPI
Multiplexed
Parallel
Serial
SPI
SPI, 3-Wire Serial
SPI, 4-Wire Serial
Voltage - Supply
-
0.9V ~ 1.8V, 0.9V ~ 5.5V
0.9V ~ 5.5V
0.9V ~ 5.5V, 1.8V ~ 5.5V
1.1V ~ 5.5V
1.2V ~ 5.5V
1.3V ~ 4.4V
1.4V ~ 5.5V
1.5V ~ 4.4V
1.6V ~ 3.6V
1.6V ~ 5.5V
1.71V ~ 1.89V
1.71V ~ 5.5V
1.7V ~ 3.6V
1.7V ~ 5.5V
1.8V ~ 2.2V
1.8V ~ 3.6V
1.8V ~ 4.2V
1.8V ~ 5.5V
1V ~ 5.5V
2.38V ~ 5.5V
2.3V ~ 4.5V
2.3V ~ 5.5V
2.4V ~ 5.5V
2.5V ~ 5.5V
2.5V ~ 6V
2.7V ~ 3.3V
2.7V ~ 3.3V, 4.5V ~ 5.5V
2.7V ~ 3.63V
2.7V ~ 3.6V
2.7V ~ 3.7V
2.7V ~ 3.7V, 4.5V ~ 5.5V
2.7V ~ 5.5V
2.8V ~ 5.5V
2.97V ~ 3.63V
2.97V ~ 3.63V, 4.5V ~ 5.5V
2.97V ~ 5.5V
2V ~ 5.5V
3.3V ~ 5.5V
3V
3V ~ 3.6V
3V ~ 3.7V
3V ~ 5.5V
3V ~ 6V
3V, 3.3V, 5V
4.5V ~ 5.5V
4.75V ~ 5.25V
4.75V ~ 5.5V
4V ~ 5.5V
5V
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Products-1867 Record(s)

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Mfr Part #
Price ($)
Quantity Available
Series
Package
Product Status
Type
Features
Memory Size
Time Format
Date Format
Interface
Voltage - Supply
M48T37Y-70MH1E
M48T37Y-70MH1E
M48T37Y-70MH1E
IC RTC CLK/CALENDAR PAR 44SOH
STMicroelectronics
$1.933Timekeeper®TubeObsoleteClock/CalendarAlarm, Leap Year, Watchdog Timer-HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5V ~ 5.5V
M41T81SM6F
M41T81SM6F
M41T81SM6F
IC RTC CLK/CALENDAR I2C 8SOIC
STMicroelectronics
$1.794220-Tape & Reel (TR)ActiveClock/CalendarAlarm, Leap Year, Square Wave Output, Watchdog Timer-HH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7V ~ 5.5V
M41ST87WSS6F
M41ST87WSS6F
M41ST87WSS6F
IC RTC CLK/CALENDAR I2C 20SSOP
STMicroelectronics
$11.711258-Tape & Reel (TR)ActiveClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer128BHH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7V ~ 3.6V
M41ST85WMX6
M41ST85WMX6
M41ST85WMX6
IC RTC CLOCK/CALENDAR I2C 28SO
STMicroelectronics
$2.205050-TubeObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer44BHH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7V ~ 3.6V
M41ST87YMX6
M41ST87YMX6
M41ST87YMX6
IC RTC CLOCK/CALENDAR I2C 28SO
STMicroelectronics
$0.69700-TubeObsoleteClock/CalendarAlarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer128BHH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial4.5V ~ 5.5V
M48T35Y-70MH1E
M48T35Y-70MH1E
M48T35Y-70MH1E
IC RTC CLK/CALENDAR PAR 28SOH
STMicroelectronics
$16.543Timekeeper®TubeObsoleteClock/CalendarLeap Year-HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5V ~ 5.5V
M48T37Y-70MH6F
M48T37Y-70MH6F
M48T37Y-70MH6F
IC RTC CLK/CALENDAR PAR 44SOH
STMicroelectronics
$1.104062Timekeeper®Tape & Reel (TR)ObsoleteClock/CalendarAlarm, Leap Year, Watchdog Timer-HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5V ~ 5.5V
M41T256YMT7F
M41T256YMT7F
M41T256YMT7F
IC RTC CLK/CALENDAR I2C 44SOH
STMicroelectronics
$5.514351Timekeeper®Tape & Reel (TR)ObsoleteClock/CalendarLeap Year, NVSRAM32KBHH:MM:SS:hh (24 hr)YY-MM-DD-ddI²C, 2-Wire Serial4.5V ~ 5.5V
M41T93ZMY6E
M41T93ZMY6E
M41T93ZMY6E
IC RTC CLK/CALENDAR SPI 18SOX
STMicroelectronics
Price negotiable4091-TubeObsoleteClock/CalendarAlarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer7BHH:MM:SS:hh (24 hr)YY-MM-DD-ddSPI2.38V ~ 5.5V
CDP68HC68T1M96
CDP68HC68T1M96
CDP68HC68T1M96
IC RTC CLK/CALENDAR SPI 20SOIC
Renesas Electronics America Inc.
$1.79186-BulkObsoleteClock/CalendarAlarm, Leap Year, Square Wave Output, Watchdog Timer32BHH:MM:SS (12/24 hr)YY-MM-DD-ddSPI3V ~ 6V
ISL12022MIBZR5421
ISL12022MIBZR5421
ISL12022MIBZR5421
IC RTC CLK/CALENDAR I2C 20SOIC
Intersil
Price negotiable10-BulkActiveClock/CalendarAlarm, Daylight Savings, Leap Year, SRAM128BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7V ~ 5.5V
BQ4802YPW
BQ4802YPW
BQ4802YPW
IC RTC CLK/CALENDAR PAR 28TSSOP
Texas Instruments
$4.44500-TubeActiveClock/CalendarAlarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer-HH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5V ~ 5.5V
DP8570AVX/NOPB
DP8570AVX/NOPB
DP8570AVX/NOPB
IC RTC TIMER PERIPH PAR 28PLCC
Texas Instruments
$20.75578-Tape & Reel (TR)ActiveTimer Clock Peripheral (TCP)Alarm, Leap Year44BHH:MM:SS:hh (12/24 hr)YY-MM-DD-ddParallel4.5V ~ 5.5V
BQ3285LDSS
BQ3285LDSS
BQ3285LDSS
IC RTC CLK/CALENDAR PAR 24SSOP
Texas Instruments
$0.697500-TubeObsoleteClock/CalendarAlarm, Daylight Savings, NVSRAM242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel2.7V ~ 5.5V
BQ3285ESTR
BQ3285ESTR
BQ3285ESTR
IC RTC CLK/CALENDAR PAR 24SOIC
Texas Instruments
$2.904940-Tape & Reel (TR)ObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output242BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5V ~ 5.5V
BQ4845YP-A4
BQ4845YP-A4
BQ4845YP-A4
IC RTC CLK/CALENDAR PAR 28DIP
Texas Instruments
$0.413350-TubeObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer-HH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5V ~ 5.5V
BQ3285P-SB2E3
BQ3285P-SB2E3
BQ3285P-SB2E3
IC RTC CLK/CALENDAR PAR 24DIP
Texas Instruments
Price negotiable3326-TubeObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output114BHH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5V ~ 5.5V
BQ4845YS-A4G4
BQ4845YS-A4G4
BQ4845YS-A4G4
IC RTC CLK/CALENDAR PAR 28SOIC
Texas Instruments
Price negotiable4423-TubeObsoleteClock/CalendarAlarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer-HH:MM:SS (12/24 hr)YY-MM-DD-ddParallel4.5V ~ 5.5V
BQ4850YMA-85N
BQ4850YMA-85N
BQ4850YMA-85N
IC RTC CLK/CALENDAR PAR 32DIP
Texas Instruments
$4.41115-TubeObsoleteClock/CalendarAlarm-HH:MM:SS (24 hr)YY-MM-DD-ddParallel4.5V ~ 5.5V
ISL12026IBZ-T
ISL12026IBZ-T
ISL12026IBZ-T
IC RTC CLK/CALENDAR I2C 8SOIC
Intersil
$1.2412500-Tape & Reel (TR)ActiveClock/CalendarAlarm, Leap Year-HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7V ~ 5.5V
ISL1208IU8Z-TK
ISL1208IU8Z-TK
ISL1208IU8Z-TK
IC RTC CLK/CALENDAR I2C 8MSOP
Intersil
$0.3636000-Tape & Reel (TR)ActiveClock/CalendarAlarm, Leap Year, SRAM2BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7V ~ 5.5V
ISL12058IRTZ
ISL12058IRTZ
ISL12058IRTZ
IC RTC CLK/CALENDAR I2C 8TDFN
Renesas Electronics America Inc.
$0.14100-TubeActiveClock/CalendarAlarm, Leap Year-HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial1.8V ~ 3.6V
ISL12022MIBZR5421
ISL12022MIBZR5421
ISL12022MIBZR5421
IC RTC CLK/CALENDAR I2C 20SOIC
Intersil
$4.7410-TubeActiveClock/CalendarAlarm, Daylight Savings, Leap Year, SRAM128BHH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7V ~ 5.5V
X1227S8-2.7A
X1227S8-2.7A
X1227S8-2.7A
IC RTC CLK/CALENDAR I2C 8SOIC
Renesas Electronics America Inc.
Price negotiable2701-TubeObsoleteClock/CalendarAlarm, Leap Year, Supervisor, Watchdog Timer-HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial2.7V ~ 5.5V
X1227S8-4.5A
X1227S8-4.5A
X1227S8-4.5A
IC RTC CLK/CALENDAR I2C 8SOIC
Renesas Electronics America Inc.
$0.554659-TubeObsoleteClock/CalendarAlarm, Leap Year, Supervisor, Watchdog Timer-HH:MM:SS (12/24 hr)YY-MM-DD-ddI²C, 2-Wire Serial4.5V ~ 5.5V
Mfr Part #
M48T37Y-70MH1E
M48T37Y-70MH1E
M48T37Y-70MH1E
IC RTC CLK/CALENDAR PAR 44SOH
STMicroelectronics
M41T81SM6F
M41T81SM6F
M41T81SM6F
IC RTC CLK/CALENDAR I2C 8SOIC
STMicroelectronics
M41ST87WSS6F
M41ST87WSS6F
M41ST87WSS6F
IC RTC CLK/CALENDAR I2C 20SSOP
STMicroelectronics
M41ST85WMX6
M41ST85WMX6
M41ST85WMX6
IC RTC CLOCK/CALENDAR I2C 28SO
STMicroelectronics
M41ST87YMX6
M41ST87YMX6
M41ST87YMX6
IC RTC CLOCK/CALENDAR I2C 28SO
STMicroelectronics
M48T35Y-70MH1E
M48T35Y-70MH1E
M48T35Y-70MH1E
IC RTC CLK/CALENDAR PAR 28SOH
STMicroelectronics
M48T37Y-70MH6F
M48T37Y-70MH6F
M48T37Y-70MH6F
IC RTC CLK/CALENDAR PAR 44SOH
STMicroelectronics
M41T256YMT7F
M41T256YMT7F
M41T256YMT7F
IC RTC CLK/CALENDAR I2C 44SOH
STMicroelectronics
M41T93ZMY6E
M41T93ZMY6E
M41T93ZMY6E
IC RTC CLK/CALENDAR SPI 18SOX
STMicroelectronics
CDP68HC68T1M96
CDP68HC68T1M96
CDP68HC68T1M96
IC RTC CLK/CALENDAR SPI 20SOIC
Renesas Electronics America Inc.
ISL12022MIBZR5421
ISL12022MIBZR5421
ISL12022MIBZR5421
IC RTC CLK/CALENDAR I2C 20SOIC
Intersil
BQ4802YPW
BQ4802YPW
BQ4802YPW
IC RTC CLK/CALENDAR PAR 28TSSOP
Texas Instruments
DP8570AVX/NOPB
DP8570AVX/NOPB
DP8570AVX/NOPB
IC RTC TIMER PERIPH PAR 28PLCC
Texas Instruments
BQ3285LDSS
BQ3285LDSS
BQ3285LDSS
IC RTC CLK/CALENDAR PAR 24SSOP
Texas Instruments
BQ3285ESTR
BQ3285ESTR
BQ3285ESTR
IC RTC CLK/CALENDAR PAR 24SOIC
Texas Instruments
BQ4845YP-A4
BQ4845YP-A4
BQ4845YP-A4
IC RTC CLK/CALENDAR PAR 28DIP
Texas Instruments
BQ3285P-SB2E3
BQ3285P-SB2E3
BQ3285P-SB2E3
IC RTC CLK/CALENDAR PAR 24DIP
Texas Instruments
BQ4845YS-A4G4
BQ4845YS-A4G4
BQ4845YS-A4G4
IC RTC CLK/CALENDAR PAR 28SOIC
Texas Instruments
BQ4850YMA-85N
BQ4850YMA-85N
BQ4850YMA-85N
IC RTC CLK/CALENDAR PAR 32DIP
Texas Instruments
ISL12026IBZ-T
ISL12026IBZ-T
ISL12026IBZ-T
IC RTC CLK/CALENDAR I2C 8SOIC
Intersil
ISL1208IU8Z-TK
ISL1208IU8Z-TK
ISL1208IU8Z-TK
IC RTC CLK/CALENDAR I2C 8MSOP
Intersil
ISL12058IRTZ
ISL12058IRTZ
ISL12058IRTZ
IC RTC CLK/CALENDAR I2C 8TDFN
Renesas Electronics America Inc.
ISL12022MIBZR5421
ISL12022MIBZR5421
ISL12022MIBZR5421
IC RTC CLK/CALENDAR I2C 20SOIC
Intersil
X1227S8-2.7A
X1227S8-2.7A
X1227S8-2.7A
IC RTC CLK/CALENDAR I2C 8SOIC
Renesas Electronics America Inc.
X1227S8-4.5A
X1227S8-4.5A
X1227S8-4.5A
IC RTC CLK/CALENDAR I2C 8SOIC
Renesas Electronics America Inc.
45
Serves customers in 45 countries
1000+
Worldwide Manufacturers
$140M
$140M Growth in 5 Years
50.0M+
50M Parts Shipped in 5 Years