Electronic Component Solutions

New Real-Time Clock Modules with Embedded DTCXO

Epson introduced two new real-time clock (RTC1) modules with built-in digital temperature-compensated crystal oscillators (DTCXO2). The new RTC modules are housed in Epson’s smallest-ever RTC package (maximum dimensions: 3.2 x 2.5 x 1.0t mm). The RA8804CE is designed for AEC-Q100-compliant3 automotive applications, while the RX8804CE is designed for industry systems. Both provide high-accuracy timekeeping in electronic systems while meeting the need for a small form factor and low current consumption.

Product number RA8804CE RX8804CE
Temperature-compensated operating voltage 1.5 V (Min.)
Clock supply voltage 1.5 V (Min.)
Timekeeping current 0.35 µA (Typ.)
Frequency stability -40℃ to +85℃ XA: ±3.4×10-6
XB: ±5.0×10-6
+85℃ to +105℃ ±8.0×10-6
Operating temperature range -40℃ to +105℃
Interface I2C (400 kHz)
New features
  • Additional interrupt: SOUT
  • Time stamp with trigger input
  • 24-bit timer (from 244 µs to up to 32 years)
Automotive standard conformance AEC-Q100
External dimensions (mm) 3.2 × 2.5 × 1.0t (Max.)



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