Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral. They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.
| Part # | Manufacturer | Description | Availability | Pricing | Quantity |
|---|---|---|---|---|---|
ISL12027IVZ-TReal Time Clocks ICs | Intersil | IC RTC CLK/CALENDAR I2C 8-TSSOP | 1391 | 70+: $3.77520 | |
ISL12029IB27AZReal Time Clocks ICs | Intersil | Real Time Clock/Calendar with I2C Bus™ and EEPROM; SOIC14, TSSOP14; Temp Range: -40° to 85°C | 5965 | 70+: $3.77520 | |
ISL12028AIB27ZReal Time Clocks ICs | Intersil | Real Time Clock/Calendar with I2C Bus™ and EEPROM; SOIC14, TSSOP14; Temp Range: -40° to 85°C | 8060 | 70+: $3.77520 | |
BQ4285EPReal Time Clocks ICs | Benchmarq | IC RTC CLK/CALENDAR PAR 24DIP | 6897 | 58+: $4.54080 | |
ISL12028IB27ZReal Time Clocks ICs | Intersil | Real Time Clock/Calendar with I2C Bus™ and EEPROM; SOIC14, TSSOP14; Temp Range: -40° to 85°C | 1752 | 70+: $3.77520 | |
ISL12028IV27ZReal Time Clocks ICs | Intersil | IC RTC CLK/CALENDAR I2C 14-TSSOP | 4755 | 70+: $3.77520 | |
ISL12028IB27Z-TReal Time Clocks ICs | Intersil | Real Time Clock/Calendar with I2C Bus™ and EEPROM; SOIC14, TSSOP14; Temp Range: -40° to 85°C | 106 | 70+: $3.77520 | |
ISL12028IV27Z-TReal Time Clocks ICs | Intersil | Real Time Clock/Calendar with I2C Bus™ and EEPROM; SOIC14, TSSOP14; Temp Range: -40° to 85°C | 1569 | 70+: $3.77520 | |
ISL12029AIB27ZReal Time Clocks ICs | Elantec | IC RTC CLK/CALENDAR I2C 14SOIC | 1100 | 70+: $3.77520 | |
ISL12027IB27AZ-TReal Time Clocks ICs | Intersil | Real Time Clock/Calendar with EEPROM; SOIC8, TSSOP8; Temp Range: -40° to 85°C | 7371 | 70+: $3.77520 | |
ISL12032IVZ-TReal Time Clocks ICs | Intersil | Low Power RTC with Battery Backed SRAM and 50/60 Cycle AC Input and Xtal Back-up; TSSOP14; Temp Range: -40° to 85°C | 2750 | 90+: $2.94800 | |
ISL12059IBZReal Time Clocks ICs | Intersil | Low Cost and Low Power I2C Bus™ Real Time Clock/Calendar Low Power and Low Cost RTC; SOIC8; Temp Range: -40° to 85°C | 4605 | 133+: $1.98880 | |
ISL12029AIV27ZReal Time Clocks ICs | Intersil | Real Time Clock/Calendar with I2C Bus™ and EEPROM; SOIC14, TSSOP14; Temp Range: -40° to 85°C | 7301 | 70+: $3.77520 | |
X1227S8Z-2.7AReal Time Clocks ICs | Intersil | IC RTC CLK/CALENDAR I2C 8SOIC | 11499 | 109+: $2.42880 | |
BQ3285LDSSReal Time Clocks ICs | Benchmarq | IC RTC CLK/CALENDAR PAR 24SSOP | 550 | 77+: $3.42320 | |
BQ3285LSSReal Time Clocks ICs | Texas Instruments | Real Time Clock Multiplexed 242Byte 24-Pin SSOP | 162 | 91+: $2.89520 | |
CDP68HC68T1MReal Time Clocks ICs | Intersil | IC RTC CLK/CALENDAR SPI 20-SOIC | 1026 | 22+: $12.23200 | |
BQ4285LSReal Time Clocks ICs | Texas Instruments | Real Time Clock Multiplexed 114Byte 24-Pin SOIC | 1073 | 166+: $1.59280 | |
ISL12029IB27Z-TReal Time Clocks ICs | Intersil | Real Time Clock/Calendar with I2C Bus™ and EEPROM; SOIC14, TSSOP14; Temp Range: -40° to 85°C | 2519 | 70+: $3.77520 | |
ISL12059IBZ-TReal Time Clocks ICs | Elantec | IC RTC CLK/CALENDAR I2C 8SOIC | 11000 | 133+: $1.98880 | |
ISL1208IU8-TKReal Time Clocks ICs | Intersil | 1 TIMER(S), REAL TIME CLOCK, PDSO8, PLASTIC, MO-187AA, MSOP-8 | 6405 | 146+: $1.80400 | |
DS12885Q/T&RReal Time Clocks ICs | Dallas Semiconductor | IC RTC CLK/CALENDAR PAR 28PLCC | 2750 | 66+: $4.03920 | |
ISL12030IBZReal Time Clocks ICs | Intersil | IC RTC CLK/CALENDAR I2C 8-SOIC | 1067 | 137+: $1.92720 | |
ISL1208IU8Real Time Clocks ICs | Intersil | 1 TIMER(S), REAL TIME CLOCK, PDSO8, PLASTIC, MO-187AA, MSOP-8 | 4121 | 169+: $1.56640 | |
X1228S14I-4.5AReal Time Clocks ICs | Intersil | IC RTC CLK/CALENDAR I2C 14SOIC | 29 | 27+: $5.27120 |