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0755-82798135Real Time Clocks
Real Time Clock (RTC) ICs are timing components used to maintain accurate time and calendar information in electronic systems, even when the main power is turned off. They are widely used in embedded systems, industrial control, consumer electronics, communication equipment, medical devices, automotive electronics, IoT products, meters and data logging applications.
This category includes real time clock ICs, battery-backed RTCs, low-power RTCs, I2C RTCs, SPI RTCs, calendar clock ICs and related clock/timing components. These devices are commonly selected based on timekeeping accuracy, backup power support, interface type, alarm functions, operating voltage, current consumption, package type and application requirements.
TomatoElec supplies original Real Time Clock RTC ICs from recognized semiconductor manufacturers such as Microchip, NXP, STMicroelectronics, Renesas, Texas Instruments, Analog Devices, onsemi, Infineon and other major brands. As an in-stock electronic components supplier and independent distributor, TomatoElec provides inventory support, original component sourcing and BOM sourcing services for global customers.
| Photo | Mfr. Part # | Availability | Price | Quantity | Datasheet | Series | Package/Case | Packaging | Product Status | Programmable | Type | Features | Memory Size | Time Format | Date Format | Interface | Voltage - Supply | Voltage - Supply, Battery | Current - Timekeeping (Max) | Operating Temperature | Mounting Type | Grade | Qualification | Supplier Device Package |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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DS1286+IC RTC CLK/CALENDAR PAR 28EDIP |
0 | - |
|
Datasheet |
- | 28-DIP Module (0.61", 15.49mm), 23 Leads | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 50B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.4V ~ 3.5V | 7mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 28-EDIP |
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DS1643-70IC RTC CLK/CALENDAR PAR 28EDIP |
0 | - |
|
Datasheet |
- | 28-DIP Module (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year, NVSRAM | 8KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 3mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 28-EDIP |
|
DS1643-70+IC RTC CLK/CALENDAR PAR 28EDIP |
0 | - |
|
Datasheet |
- | 28-DIP Module (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year, NVSRAM | 8KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 3mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 28-EDIP |
|
DS1743-70IC RTC CLK/CALENDAR PAR 28EDIP |
0 | - |
|
Datasheet |
- | 28-DIP Module (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 8KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 3mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 28-EDIP |
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DS1742-100INDIC RTC CLK/CALENDAR PAR 24EDIP |
0 | - |
|
Datasheet |
- | 24-DIP Module (0.600", 15.24mm) | Tube | Discontinued at Digi-Key | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 2KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 3mA @ 5V | -40°C ~ 85°C | Through Hole | - | - | 24-EDIP |
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DS1553WP-150+IC RTC CLK/CALENDAR PAR 34PCM |
0 | - |
|
Datasheet |
- | 34-PowerCap™ Module | Tray | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | 8KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | 3V | 2mA @ 3.3V | 0°C ~ 70°C | Surface Mount | - | - | 34-PowerCap Module |
|
DS1553WP-120+IC RTC CLK/CALENDAR PAR 34PCM |
0 | - |
|
Datasheet |
- | 34-PowerCap™ Module | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | 8KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | 3V | 2mA @ 3.3V | 0°C ~ 70°C | Surface Mount | - | - | 34-PowerCap Module |
|
DS1386P-8-120+IC RTC CLK/CALENDAR PAR 34PCM |
0 | - |
|
Datasheet |
- | 34-PowerCap™ Module | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer | 8KB | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 3V | 4mA @ 5V | 0°C ~ 70°C | Surface Mount | - | - | 34-PowerCap Module |
|
DS1315S-5+T&RIC RTC PHANTOM CHIP PAR 16SOIC |
0 | - |
|
Datasheet |
- | 16-SOIC (0.295", 7.50mm Width) | Tape & Reel (TR) | Active | Not Verified | Phantom Time Chip | Leap Year | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 1.3mA @ 5V | 0°C ~ 70°C | Surface Mount | - | - | 16-SOIC |
|
|
DS1553-100IC RTC CLK/CALENDAR PAR 28EDIP |
0 | - |
|
Datasheet |
- | 28-DIP Module (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | 8KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 3mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 28-EDIP |
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DS1743P-85IND+IC RTC CLK/CALENDAR PAR 34PCM |
0 | - |
|
Datasheet |
- | 34-PowerCap™ Module | Tube | Obsolete | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Y2K | 8KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 3V | 3mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 34-PowerCap Module |
|
DS1553-70IC RTC CLK/CALENDAR PAR 28EDIP |
0 | - |
|
Datasheet |
- | 28-DIP Module (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | 8KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 3mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 28-EDIP |
|
DS1553-70+IC RTC CLK/CALENDAR PAR 28EDIP |
0 | - |
|
Datasheet |
- | 28-DIP Module (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | 8KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 3mA @ 5V | 0°C ~ 70°C | Through Hole | - | - | 28-EDIP |
|
DS1315EN-33+T&RIC RTC PHANTOM CHIP PAR 20TSSOP |
0 | - |
|
Datasheet |
- | 20-TSSOP (0.173", 4.40mm Width) | Tape & Reel (TR) | Active | Not Verified | Phantom Time Chip | Leap Year | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 3V ~ 3.6V | 2.5V ~ 3.7V | 1.1mA @ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 20-TSSOP |
|
DS1554P-70INDIC RTC CLK/CALENDAR PAR 34PCM |
0 | - |
|
Datasheet |
- | 34-PowerCap™ Module | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | 32KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 3V | 6mA @ 5V | -40°C ~ 85°C | Surface Mount | - | - | 34-PowerCap Module |
|
DS1554WP-120INDIC RTC CLK/CALENDAR PAR 34PCM |
0 | - |
|
Datasheet |
- | 34-PowerCap™ Module | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | 32KB | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 2.97V ~ 3.63V | 3V | 4mA @ 3.3V | -40°C ~ 85°C | Surface Mount | - | - | 34-PowerCap Module |
|
M48T35Y-70MH6FIC RTC CLK/CALENDAR PAR 28SOH |
0 | - |
|
Datasheet |
Timekeeper® | 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | - | 2mA @ 4.75V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 28-SOH |
|
M48T35AV-10MH6FIC RTC CLK/CALENDAR PAR 28SOH |
0 | - |
|
Datasheet |
Timekeeper® | 28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Leap Year | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | Parallel | 3V ~ 3.6V | - | 2mA @ 3V ~ 3.6V | -40°C ~ 85°C | Surface Mount | - | - | 28-SOH |
|
DS1286IIC RTC CLK/CALENDAR PAR 28EDIP |
0 | - |
|
Datasheet |
- | 28-DIP Module (0.61", 15.49mm), 23 Leads | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 50B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.4V ~ 3.5V | 7mA @ 5V | -40°C ~ 85°C | Through Hole | - | - | 28-EDIP |
|
DS1286I+IC RTC CLK/CALENDAR PAR 28EDIP |
0 | - |
|
Datasheet |
- | 28-DIP Module (0.61", 15.49mm), 23 Leads | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer | 50B | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.4V ~ 3.5V | 7mA @ 5V | -40°C ~ 85°C | Through Hole | - | - | 28-EDIP |
