RTC-8564JE
Successor: RX8130CE
The RTC-8564JE is going end of life. Epson discontinuation notice 25-012E dated 28 October 2025 · last time buy was 16 April 2026 · final shipment end of October 2026 · reason: ageing production line for these packages. What you can design in now, which route is the smaller intervention and what changes in layout and firmware — set side by side here.
RTC-8564JE versus RX8130CE
| RTC-8564JE — end of life | RX8130CE — successor | |
|---|---|---|
| Status | Discontinued — final shipment October 2026 | Active, series programme |
| Interface | I²C bus (400 kHz) | I²C bus (400 kHz) |
| Package | VSOJ-20 · 7.0 × 5.4 × 1.5 mm | CE 3.2 × 2.5 × 1.0 mm |
| Footprint area | 37.8 mm² | 8.0 mm² |
| Supply voltage | 1.8 – 5.5 V | 1.25 – 5.5 V |
| Timekeeping | Timekeeping 1.0 – 5.5 V (−20 … +70 °C) · 1.1 – 5.5 V (−40 … +85 °C) | 1.25 – 5.5 V |
| Standby current | 275 nA typ. · 700 nA max. at 3 V | 300 nA typ. · 500 nA max. |
| Accuracy | Grade B: +5 ±23 ppm at +25 °C | +5 ±23 ppm at +25 °C (not compensated) |
| Temperature range | −40 … +85 °C | −40 … +85 °C |
Function set of the RTC-8564JE: full calendar, alarm, timer (1/4096 s to 255 min), voltage monitoring, CLKOUT 32.768 kHz / 1024 Hz / 32 Hz / 1 Hz with CLKOE control pin. Epson product number: Q41856471000100.
Two ways out of the discontinuation
RX-8564LC
same series, same register map, considerably smaller package — still in production. Package: VSOJ-12 · 3.6 × 2.8 mm.
- The register map stays the same — the firmware does not have to be touched
- Electrical figures stay within the range of the series
- Only the footprint on the board changes
RX8130CE
The official successor. Not a drop-in: package, footprint and register map all change. In return you get:
- Reset output with adjustable delay
- Charge control for the backup battery with full-charge detection
- Dedicated V_IO pin for interface levels below VDD
- Self-monitoring (oscillation stop)
- Automatic switchover to the backup source
- Footprint area drops from 37.8 mm² to 8.0 mm²
Frequently asked questions
Is the RTC-8564JE discontinued?
Yes. Epson discontinued the type with notice 25-012E dated 28 October 2025. The last order date was 16 April 2026 and the final shipment goes out at the end of October 2026. The reason is the ageing production line for this package.
What is the successor to the RTC-8564JE?
Epson recommends the RX8130CE. It is not a drop-in replacement: the package changes to CE 3.2 x 2.5 x 1.0 mm, so the printed circuit board has to change. If you want to avoid that effort, look at the RX-8564LC from the same series first.
Can I replace the RTC-8564JE pin-compatibly?
No. Neither the RX8130CE nor the sibling types sit on the same footprint. A layout step is required either way; the smaller intervention is moving within the series to the RX-8564LC, because the register map and therefore the firmware stay the same.
Where can I still get the RTC-8564JE?
Timing Devices Europe stocks the Epson RTC programme in Ladenburg near Heidelberg, Germany. Ask for remaining stock, successor samples and migration planning in one go — we answer the same working day.
Remaining stock, samples and successor in one enquiry.
We stock the Epson RTC programme in our own warehouse in Ladenburg near Heidelberg — physically on site, not at the manufacturer. Tell us your annual demand for the RTC-8564JE and we will put together remaining coverage and successor samples.