 | M41T94MH6E | Stmicroelectronics | Serial real-time clock (RTC) with 44 bytes NVRAM and reset |
 | DS1743-100+ | Maxim | IC RTC CLK/CALENDAR PAR 28-EDIP |
 | M41ST84WMQ6E | Stmicroelectronics | 1 TIMER(S), REAL TIME CLOCK, PDSO16, ROHS COMPLIANT, PLASTIC, SOP-16 |
 | M41T11M6E | Stmicroelectronics | Serial real-time clock (RTC) with 56 bytes of NVRAM |
 | MCP7940N-I/ST | Microchip | Real Time Clock Serial 64byte Clock/Calendar/Alarm/Battery Backup Automotive 8-Pin TSSOP Tube |
 | DS1337+ | Maxim | MAXIM INTEGRATED PRODUCTS DS1337+ RTC, SERIAL ALARM, LOW POWER, 1337 |
 | DS1643P-100+ | Maxim | IC RTC CLK/CALENDAR PAR 34-PCM |
 | M41T00M6E | Stmicroelectronics | Serial real-time clock (RTC) |
 | DS1683S+ | Maxim | 8-Pin SOIC N RTC: Clock/Calendar/Time/Temp/Alarm, 16B RAM, 2.5-5.5V |
 | MCP7940N-I/SN | Microchip | RTC IC, I2C, 64B Mem, 1.8-5.5V, SOIC, -40 to 85°C |
 | MCP79410-I/SN | Microchip | RTC IC, I2C, 64B Mem, 1.8-5.5V, SOIC, Industrial |
 | DS1742W-150+ | Maxim | IC RTC CLK/CALENDAR PAR 24-EDIP |
 | DS1340Z-33+ | Maxim | RTC IC, 3.3V, I2C/Serial, SOIC-8, 32.768kHz |
 | DS1746WP-120+ | Maxim | IC RTC CLK/CALENDAR PAR 34-PCM |
 | DS17287-5+ | Maxim | MAXIM INTEGRATED PRODUCTS DS17287-5+. IC, RTC MODULE, 17287, DIP24 |
 | M48T58Y-70MH1F | Stmicroelectronics | 5.0 V, 64 Kbit (8 Kb x 8) TIMEKEEPER® SRAM |
 | M41T94MH6F | Stmicroelectronics | SPI Real Time Clock (RTC) IC, 2.7-5.5V, 44B NVRAM, SOIC |
 | BQ3287EAMT | Texas Instruments | IC RTC CLK/CALENDAR PAR 24-DIP |
 | PCF2129AT/1 | NXP | Real Time Clock Serial (3-Wire, I2C, SPI) Clock/Calendar 20-Pin SO |
 | DS1307+ | Maxim | I2C RTC IC, 5V, PDIP-8, Serial, BCD |
