Maxim IC DS134x Low-Current I²C RTCs
Timekeeping device that provides an extremely low standby current.

Microchip MCP7940N Real-Time Clock/Calendar (RTCC)
Provides 64 bytes SRAM and battery switchover.

Texas Instruments THS788 Quad Channel Time Measurement Unit
Quad-channel TMU with 8ps single-shot accuracy and 13ps (LSB) resolution.

STMicroelectronics M41T62LC6F Serial Real-Time Clock with Alarm
Industry's smallest RTC with embedded crystal.

ON Semiconductor NBVSBAXXX Series PureEdge™ VCXO
Provides exceptional frequency stability & reliability for 2.5V & 3.3V LVPECL clock generation applications.

Maxim DS134x Low-Current SPI / 3-Wire RTCs
Compatible with any 32.768 kHz crystal, supports high ESR, and provides extremely low standby current.

Maxim DS134x Low-Current SPI / 3-Wire RTCs
Compatible with any 32.768 kHz crystal, supports high ESR, and provides extremely low standby current.

Maxim DS134x Low-Current SPI / 3-Wire RTCs
Compatible with any 32.768 kHz crystal, supports high ESR, and provides extremely low standby current.

Silicon Labs Si537x 4-PLL Jitter Attenuating Clock ICs
First single-chip timing ICs integrating 4 independent, high-performance PLLs.

Maxim IC DS3231M I²C Real-Time Clock
Industry's first temperature-compensated RTC with internal MEMS resonator.

Maxim IC DS3231M I²C Real-Time Clock
Industry's first temperature-compensated RTC with internal MEMS resonator.

Maxim IC DS3231M I²C Real-Time Clock
Industry's first temperature-compensated RTC with internal MEMS resonator.

Silicon Labs Si5351 CMOS Clock Generator
Most frequency flexible, lowest jitter, lowest power.