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Real Time Clocks
| 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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BQ3285ESSIC RTC CLK/CALENDAR PAR 24SSOP |
4,031 | 3.14 |
|
Datasheet |
- | 24-SSOP (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 4V | 300µA @ 5V | 0°C ~ 70°C | Surface Mount | - | - | 24-SSOP |
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BQ3285LDSSIC RTC CLK/CALENDAR PAR 24SSOP |
1,448 | 3.14 |
|
Datasheet |
- | 24-SSOP (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, NVSRAM | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 5.5V | 2.4V ~ 4V | 100µA @ 3V | 0°C ~ 70°C | Surface Mount | - | - | 24-SSOP |
|
DS1339C-3DS1339 I2C SERIAL RTC |
6,085 | 3.14 |
|
Datasheet |
- | 16-SOIC (0.295", 7.50mm Width) | Bulk | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, Square Wave Output, Trickle-Charger | - | HH:MM:SS (12/24 hr) | YY-MM-DD | I2C | 2.7V ~ 5.5V | 1.3V ~ 3.7V | 150µA @ 3.3V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 16-SOIC |
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BQ3285LDSSIC RTC CLK/CALENDAR PAR 24SSOP |
500 | 3.14 |
|
Datasheet |
- | 24-SSOP (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, NVSRAM | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 2.7V ~ 5.5V | 2.4V ~ 4V | 100µA @ 3V | 0°C ~ 70°C | Surface Mount | - | - | 24-SSOP/QSOP |
|
MAX6901ETAMAX6901 3-WIRE SERIAL RTC |
4,380 | 3.20 |
|
Datasheet |
- | 8-WDFN Exposed Pad | Bulk | Active | Not Verified | Clock/Calendar | Alarm, Leap Year, RAM | 31B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 3-Wire Serial | 2V ~ 5.5V | - | 0.7µA ~ 2.2µA @ 2V ~ 5V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 8-TDFN-EP (3x3) |
|
BQ4845P-A4IC RTC CLK/CALENDAR PAR 28DIP |
2,146 | 3.24 |
|
Datasheet |
- | 28-DIP (0.600", 15.24mm) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.75V ~ 5.5V | 2.3V ~ 4V | 1.5mA (Typ) @ 4.5 V ~ 5.5 V | 0°C ~ 70°C | Through Hole | - | - | 28-PDIP |
|
ISL1208IRT8Z-TKIC RTC CLK/CALENDAR I2C 8TDFN |
860 | 3.68 |
|
Datasheet |
- | 8-WDFN Exposed Pad | Tape & Reel (TR) | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, SRAM | 2B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 4µA ~ 6µA @ 3V ~ 5V | -40°C ~ 85°C | Surface Mount | - | - | 8-TDFN (3x3) |
|
DS1685Q-5IC RTC CLK/CALENDAR PAR 28PLCC |
1,390 | 3.44 |
|
Datasheet |
- | 28-LCC (J-Lead) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, NVSRAM, Square Wave Output, Y2K | 242B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | Parallel | 4.5V ~ 5.5V | 2.5V ~ 3.7V | 3mA @ 5V | 0°C ~ 70°C | Surface Mount | - | - | 28-PLCC (11.51x11.51) |
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ISL12029AIB27ZIC RTC CLK/CALENDAR I2C 14SOIC |
10,876 | 3.47 |
|
Datasheet |
- | 14-SOIC (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOIC |
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|
DS1338C-33IC RTC CLK/CALENDAR I2C 16SOIC |
8,645 | 3.47 |
|
Datasheet |
- | 16-SOIC (0.295", 7.50mm Width) | Bulk | Active | Not Verified | Clock/Calendar | Leap Year, NVSRAM, Square Wave Output | 56B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C | 3V ~ 5.5V | 1.3V ~ 3.7V | 125µA ~ 200µA @ 3.63V ~ 5.5V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 16-SOIC |
|
ISL12027IV30AZIC RTC CLK/CALENDAR I2C 8TSSOP |
8,277 | 3.47 |
|
Datasheet |
- | 8-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-TSSOP |
|
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ISL12027IV27AZIC RTC CLK/CALENDAR I2C 8TSSOP |
8,041 | 3.47 |
|
Datasheet |
- | 8-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-TSSOP |
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ISL12028AIB27ZIC RTC CLK/CALENDAR I2C 14SOIC |
7,328 | 3.47 |
|
Datasheet |
- | 14-SOIC (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOIC |
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ISL12027IB27AZ-TIC RTC CLK/CALENDAR I2C 8SOIC |
6,701 | 3.47 |
|
Datasheet |
- | 8-SOIC (0.154", 3.90mm Width) | Bulk | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC |
|
ISL12029AIV27ZIC RTC CLK/CALENDAR I2C 14TSSOP |
6,638 | 3.47 |
|
Datasheet |
- | 14-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 14-TSSOP |
|
|
ISL12029IB27ZIC RTC CLK/CALENDAR I2C 14SOIC |
5,963 | 3.47 |
|
Datasheet |
- | 14-SOIC (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, EEPROM, Leap Year, Supervisor, Watchdog Timer | 512B | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C (TA) | Surface Mount | - | - | 14-SOIC |
|
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ISL12028IVZIC RTC CLK/CALENDAR I2C 14TSSOP |
5,647 | 3.47 |
|
Datasheet |
- | 14-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 14-TSSOP |
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ISL12027AIB27ZIC RTC CLK/CALENDAR I2C 8SOIC |
5,613 | 3.47 |
|
Datasheet |
- | 8-SOIC (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 8-SOIC |
|
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ISL12029IB27AZIC RTC CLK/CALENDAR I2C 14SOIC |
5,423 | 3.47 |
|
Datasheet |
- | 14-SOIC (0.154", 3.90mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 14-SOIC |
|
|
ISL12028IV27ZIC RTC CLK/CALENDAR I2C 14TSSOP |
4,323 | 3.47 |
|
Datasheet |
- | 14-TSSOP (0.173", 4.40mm Width) | Tube | Obsolete | Not Verified | Clock/Calendar | Alarm, Leap Year, Supervisor, Watchdog Timer | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | I2C, 2-Wire Serial | 2.7V ~ 5.5V | 1.8V ~ 5.5V | 10µA ~ 20µA @ 2.7V ~ 5.5V | -40°C ~ 85°C | Surface Mount | - | - | 14-TSSOP |
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