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- Clock/Timing - Real Time Clocks
| Image | Part # | Manufacturer | Description | Availability | Pricing | Quantity | Mounting Type | Package / Case | Surface Mount | Supplier Device Package | Operating Temperature (Max.) | Operating Temperature | Packaging | JESD-609 Code | Pbfree Code | Part Status | Moisture Sensitivity Level (MSL) | Number of Terminations | Type | Terminal Finish | Voltage - Supply | Terminal Position | Peak Reflow Temperature (Cel) | Number of Functions | Supply Voltage | Terminal Pitch | Reach Compliance Code | Time@Peak Reflow Temperature-Max (s) | Pin Count | JESD-30 Code | Qualification Status | Supply Voltage-Max (Vsup) | Temperature Grade | Supply Voltage-Min (Vsup) | Number of Channels | Interface | Memory Size | Adjustable Threshold | Clock Frequency | External Data Bus Width | Number of Timers | Time Format | Date Format | Current - Timekeeping (Max) | Voltage - Supply, Battery | Information Access Method | Features | Height Seated (Max) | Length | Width | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() | Mfr. Part #DS1338U-33Twicea Part #699-476-DS1338U-33 | Rochester Electronics, LLC |
I2C RTC WITH TRICKLE CHARGER
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) | YES | - | - | -40°C~85°C | Tube | e0 | no | Obsolete | 1 (Unlimited) | 8 | Clock/Calendar | TIN LEAD | 3V~5.5V | DUAL | 240 | - | 3.3V | 0.65mm | - | 20 | 8 | S-PDSO-G8 | COMMERCIAL | - | - | - | - | I2C, 2-Wire Serial | 56B | - | 0.032MHz | - | 1 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 125μA~200μA @ 3.63V~5.5V | 1.3V~3.7V | I2C | Leap Year, NVSRAM, Square Wave Output | 1.1mm | 3mm | 3mm | Non-RoHS Compliant | ||
| DS1338U-33 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS1338Z-33Twicea Part #699-476-DS1338Z-33 | Rochester Electronics, LLC |
I2C RTC WITH TRICKLE CHARGER
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 8-SOIC (0.154, 3.90mm Width) | YES | - | - | -40°C~85°C | Tube | e0 | no | Obsolete | 1 (Unlimited) | 8 | Clock/Calendar | TIN LEAD | 3V~5.5V | DUAL | 245 | - | 3.3V | 1.27mm | - | NOT SPECIFIED | 8 | R-PDSO-G8 | COMMERCIAL | - | - | - | - | I2C, 2-Wire Serial | 56B | - | 0.032MHz | - | 1 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 125μA~200μA @ 3.63V~5.5V | 1.3V~3.7V | I2C | Leap Year, NVSRAM, Square Wave Output | 1.75mm | 4.9mm | 3.9mm | Non-RoHS Compliant | ||
| DS1338Z-33 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS1374U-33Twicea Part #699-476-DS1374U-33 | Rochester Electronics, LLC |
32-BIT BINARY COUNTER WDOG RTC
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 10-TFSOP, 10-MSOP (0.118, 3.00mm Width) | YES | - | - | -40°C~85°C | Tube | e0 | no | Obsolete | 1 (Unlimited) | 10 | Binary Counter | TIN LEAD | 2.97V~5.5V | DUAL | 240 | 1 | 3.3V | 0.5mm | unknown | 20 | 10 | S-PDSO-G10 | - | 5.5V | - | 2.97V | 1 | I2C, 2-Wire Serial | - | NO | - | - | - | Binary | - | 175μA @ 2.97V~5.5V | 1.3V~5.5V | - | Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer | 1.1mm | 3mm | 3mm | Non-RoHS Compliant | ||
| DS1374U-33 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS1318Twicea Part #699-476-DS1318 | Rochester Electronics, LLC |
PARALLEL ELAPSED TIME COUNTER
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 24-TSSOP (0.173, 4.40mm Width) | YES | - | - | -40°C~85°C | Tube | e0 | no | Obsolete | 1 (Unlimited) | 24 | Elapsed Time Counter | TIN LEAD | 3V~3.6V | DUAL | 240 | - | 3.3V | 0.65mm | - | 20 | 24 | R-PDSO-G24 | COMMERCIAL | - | - | - | - | Parallel | - | - | 0.032MHz | 8 | 1 | Binary | - | 150μA @ 3V~3.6V | 1.6V~3.7V | - | Alarm, Square Wave Output | 1.1mm | 7.8mm | 4.4mm | Non-RoHS Compliant | ||
| DS1318 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #BQ3285LFSS-A1TRTwicea Part #699-476-BQ3285LFSS-A1TR | Rochester Electronics, LLC |
RTC, NON-VOLATILE
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 24-SSOP (0.154, 3.90mm Width) | - | 24-SSOP/QSOP | - | 0°C~70°C | Tape & Reel (TR) | - | - | Obsolete | 2 (1 Year) | - | Clock/Calendar | - | 2.7V~5.5V | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Parallel | 242B | - | - | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 100μA @ 3V | 2.4V~4V | - | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | - | - | - | ROHS3 Compliant | ||
| BQ3285LFSS-A1TR | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #X1227S8Z-2.7ATwicea Part #699-476-X1227S8Z-2.7A | Rochester Electronics, LLC |
RTC, NON-VOLATILE
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 8-SOIC (0.154, 3.90mm Width) | YES | - | - | 0°C~70°C | Tube | e3 | yes | Obsolete | 1 (Unlimited) | 8 | Clock/Calendar | MATTE TIN | 2.7V~5.5V | DUAL | 260 | - | 5V | 1.27mm | - | 40 | 8 | R-PDSO-G8 | COMMERCIAL | - | - | - | - | I2C, 2-Wire Serial | - | - | 0.032MHz | - | 1 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 10μA~20μA @ 2.7V~5V | 1.8V~5.5V | I2C | Alarm, Leap Year, Supervisor, Watchdog Timer | 1.7272mm | 4.9022mm | 3.9116mm | ROHS3 Compliant | ||
| X1227S8Z-2.7A | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #ISL1208IB8Twicea Part #699-476-ISL1208IB8 | Rochester Electronics, LLC |
RTC, NON-VOLATILE
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 8-SOIC (0.154, 3.90mm Width) | YES | - | - | -40°C~85°C | Tube | e3 | yes | Obsolete | 1 (Unlimited) | 8 | Clock/Calendar | MATTE TIN | 2.7V~5.5V | DUAL | 260 | - | 3V | 1.27mm | - | NOT SPECIFIED | 8 | R-PDSO-G8 | COMMERCIAL | - | - | - | - | I2C, 2-Wire Serial | 2B | - | 0.032MHz | - | 1 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 4μA~6μA @ 3V~5V | 1.8V~5.5V | I2C | Alarm, Leap Year, SRAM | 1.7272mm | 4.9022mm | 3.9116mm | Non-RoHS Compliant | ||
| ISL1208IB8 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS1306NTwicea Part #699-476-DS1306N | Rochester Electronics, LLC |
DS1306 SERIAL ALARM RTC
Datasheet
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| Min.:1 Mult.:1 | Through Hole | 16-DIP (0.300, 7.62mm) | NO | - | - | -40°C~85°C | Tube | e0 | no | Obsolete | 1 (Unlimited) | 16 | Clock/Calendar | TIN LEAD | 2V~5.5V | DUAL | 240 | - | 5V | 2.54mm | unknown | 20 | 16 | R-PDIP-T16 | COMMERCIAL | - | - | - | - | SPI | 96B | - | 0.032MHz | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 25.3μA~81μA @ 2V~5V | 2V~5.5V | SERIAL, 3-WIRE | Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger | 4.572mm | 19.175mm | 7.62mm | Non-RoHS Compliant | ||
| DS1306N | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS1685-3Twicea Part #699-476-DS1685-3 | Rochester Electronics, LLC |
DS1685 5V REAL-TIME CLOCK
Datasheet
Compare
| Min.:1 Mult.:1 | Through Hole | 24-DIP (0.600, 15.24mm) | NO | - | - | 0°C~70°C | Tube | e0 | no | Obsolete | 1 (Unlimited) | 24 | Clock/Calendar | TIN LEAD | 2.7V~3.7V | DUAL | 240 | - | 3V | 2.54mm | - | 20 | 24 | R-PDIP-T24 | COMMERCIAL | - | - | - | - | Parallel | 242B | - | 0.032MHz | 8 | 1 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2mA @ 3V | 2.5V~3.7V | - | Alarm, NVSRAM, Square Wave Output, Y2K | 5.08mm | 31.75mm | 15.24mm | Non-RoHS Compliant | ||
| DS1685-3 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #X1227S8-2.7Twicea Part #699-476-X1227S8-2.7 | Rochester Electronics, LLC |
RTC, NON-VOLATILE
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 8-SOIC (0.154, 3.90mm Width) | YES | - | - | 0°C~70°C | Tube | e0 | no | Obsolete | 1 (Unlimited) | 8 | Clock/Calendar | TIN LEAD | 2.7V~5.5V | DUAL | 240 | - | 5V | 1.27mm | - | 30 | 8 | R-PDSO-G8 | COMMERCIAL | - | - | - | - | I2C, 2-Wire Serial | - | - | 0.032MHz | - | 1 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 10μA~20μA @ 2.7V~5V | 1.8V~5.5V | I2C | Alarm, Leap Year, Supervisor, Watchdog Timer | 1.7272mm | 4.9022mm | 3.9116mm | Non-RoHS Compliant | ||
| X1227S8-2.7 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS1744-70Twicea Part #699-476-DS1744-70 | Rochester Electronics, LLC |
Y2K, NV TIMEKEEPING RAM
Datasheet
Compare
| Min.:1 Mult.:1 | Through Hole | 28-DIP Module (0.600, 15.24mm) | NO | - | - | 0°C~70°C | Tube | e0 | no | Obsolete | 3 (168 Hours) | 28 | Clock/Calendar | TIN LEAD | 4.5V~5.5V | DUAL | 240 | - | 5V | 2.54mm | - | NOT SPECIFIED | 28 | R-XDMA-T28 | COMMERCIAL | - | - | - | - | Parallel | 32KB | - | 0.032MHz | 8 | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 4mA @ 5V | - | - | Leap Year, NVSRAM, Y2K | 10.42mm | 38.865mm | 15.24mm | Non-RoHS Compliant | ||
| DS1744-70 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS1557P-70Twicea Part #699-476-DS1557P-70 | Rochester Electronics, LLC |
NV, Y2K TIMEKEEPING RAM
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 34-PowerCap™ Module | YES | - | - | 0°C~70°C | Tube | e0 | no | Obsolete | 3 (168 Hours) | 34 | Clock/Calendar | TIN LEAD | 4.5V~5.5V | DUAL | 240 | - | 5V | - | - | NOT SPECIFIED | 34 | R-XDMA-U34 | COMMERCIAL | - | - | - | - | Parallel | 512KB | - | 0.032MHz | 8 | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 6mA @ 5V | 3V | - | Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K | - | - | - | Non-RoHS Compliant | ||
| DS1557P-70 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS1678Twicea Part #699-476-DS1678 | Rochester Electronics, LLC |
DS1678 REAL-TIME EVENT RECORDER
Datasheet
Compare
| Min.:1 Mult.:1 | Through Hole | 8-DIP (0.300, 7.62mm) | NO | - | - | -40°C~85°C | Tube | e0 | no | Obsolete | 1 (Unlimited) | 8 | Time Event Recorder | TIN LEAD | 4.5V~5.5V | DUAL | 245 | - | 5V | 2.54mm | - | NOT SPECIFIED | 8 | R-PDIP-T8 | COMMERCIAL | - | - | - | - | I2C, 2-Wire Serial | 32B | - | 0.032MHz | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 2.6V~3.5V | I2C | Alarm, Leap Year, NVSRAM, Y2K | 4.572mm | 9.375mm | 7.62mm | Non-RoHS Compliant | ||
| DS1678 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #ISL12025IVZ-TTwicea Part #699-476-ISL12025IVZ-T | Rochester Electronics, LLC |
RTC, NON-VOLATILE
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 8-TSSOP (0.173, 4.40mm Width) | - | 8-TSSOP | - | -40°C~85°C | Tape & Reel (TR) | - | - | Obsolete | 1 (Unlimited) | - | Clock/Calendar | - | 2.7V~5.5V | - | - | - | - | - | - | - | - | - | - | - | - | - | - | I2C, 2-Wire Serial | - | - | - | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 10μA~20μA @ 2.7V~5.5V | 1.8V~5.5V | - | Alarm, Leap Year, Supervisor, Unique ID, Watchdog Timer | - | - | - | ROHS3 Compliant | ||
| ISL12025IVZ-T | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #ISL12025IBZTwicea Part #699-476-ISL12025IBZ | Rochester Electronics, LLC |
RTC, NON-VOLATILE
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 8-SOIC (0.154, 3.90mm Width) | YES | - | - | -40°C~85°C | Tube | e3 | yes | Obsolete | 1 (Unlimited) | 8 | Clock/Calendar | MATTE TIN | 2.7V~5.5V | DUAL | 260 | - | 3.3V | 1.27mm | - | 40 | 8 | R-PDSO-G8 | COMMERCIAL | - | - | - | - | I2C, 2-Wire Serial | - | - | 0.032MHz | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 10μA~20μA @ 2.7V~5.5V | 1.8V~5.5V | I2C | Alarm, Leap Year, Supervisor, Unique ID, Watchdog Timer | 1.75mm | 4.9mm | 3.9mm | ROHS3 Compliant | ||
| ISL12025IBZ | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS17285S-5Twicea Part #699-476-DS17285S-5 | Rochester Electronics, LLC |
DS17285 REAL-TIME CLOCK
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 24-SOIC (0.295, 7.50mm Width) | YES | - | - | -40°C~85°C | Tube | e0 | no | Obsolete | 3 (168 Hours) | 24 | Clock/Calendar | TIN LEAD | 4.5V~5.5V | DUAL | 245 | - | 5V | 1.27mm | - | NOT SPECIFIED | 24 | R-PDSO-G24 | COMMERCIAL | - | - | - | - | Parallel | 2KB | - | 0.032MHz | 8 | 1 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 3mA @ 4.5V~5.5V | 2.5V~3.7V | - | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2.67mm | 17.9mm | 7.5mm | Non-RoHS Compliant | ||
| DS17285S-5 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #MAX6917EO30Twicea Part #699-476-MAX6917EO30 | Rochester Electronics, LLC |
RTCS WITH MPU SUPERVISOR
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 20-SSOP (0.154, 3.90mm Width) | YES | - | - | -40°C~85°C | Tube | e3 | yes | Obsolete | 1 (Unlimited) | 20 | Clock/Calendar/Supervisor | TIN | 2.7V~3.3V | DUAL | 260 | - | 3V | 0.635mm | - | NOT SPECIFIED | 20 | R-PDSO-G20 | COMMERCIAL | - | - | - | - | I2C, 2-Wire Serial | 96B | - | 0.032MHz | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | - | I2C | - | 1.73mm | 8.65mm | 3.9mm | ROHS3 Compliant | ||
| MAX6917EO30 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS3231STwicea Part #699-476-DS3231S | Rochester Electronics, LLC |
I2C-INTEGRATED RTC/TCXO/XTAL
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 16-SOIC (0.295, 7.50mm Width) | YES | - | - | 0°C~70°C | Tube | e0 | no | Obsolete | 1 (Unlimited) | 16 | Clock/Calendar | TIN LEAD | 2.3V~5.5V | DUAL | 240 | - | 3.3V | 1.27mm | - | 20 | 16 | R-PDSO-G16 | COMMERCIAL | - | - | - | - | I2C, 2-Wire Serial | - | - | 0.032MHz | - | 1 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 110μA~170μA @ 3.63V~5.5V | 2.3V~5.5V | I2C | Alarm, Leap Year, Square Wave Output, TCXO/Crystal | 2.65mm | 10.3mm | 7.5mm | Non-RoHS Compliant | ||
| DS3231S | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS17285S-3Twicea Part #699-476-DS17285S-3 | Rochester Electronics, LLC |
DS17285 REAL-TIME CLOCK
Datasheet
Compare
| Min.:1 Mult.:1 | Surface Mount | 24-SOIC (0.295, 7.50mm Width) | YES | - | 70°C | - | Tube | e0 | no | Obsolete | 3 (168 Hours) | 24 | Clock/Calendar | TIN LEAD | 2.7V~3.7V | DUAL | 245 | - | 3V | 1.27mm | - | NOT SPECIFIED | 24 | R-PDSO-G24 | COMMERCIAL | - | COMMERCIAL | - | - | Parallel | 2KB | - | 0.032MHz | 8 | 1 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | 2.5V~3.7V | - | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 2.67mm | 17.9mm | 7.5mm | Non-RoHS Compliant | ||
| DS17285S-3 | |||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #DS14285Twicea Part #699-476-DS14285 | Rochester Electronics, LLC |
DS14285 RTC WITH NV RAM CONTROL
Datasheet
Compare
| Min.:1 Mult.:1 | Through Hole | 24-DIP (0.600, 15.24mm) | NO | - | - | 0°C~70°C | Tube | e3 | yes | Obsolete | 1 (Unlimited) | 24 | Clock/Calendar | MATTE TIN | 4.5V~5.5V | DUAL | 260 | - | 5V | 2.54mm | - | 30 | 24 | R-PDIP-T24 | COMMERCIAL | - | - | - | - | Parallel | 114B | - | 0.032MHz | 8 | 1 | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 0.5μA @ 4.5V~5.5V | 2.5V~3.6V | - | Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output | 5.08mm | 31.75mm | 15.24mm | ROHS3 Compliant | ||
| DS14285 |
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