PCF8563 → RV-8564
Cross-reference / replacement · NXP → Micro Crystal
- Interface:
- I²C (up to 400 kHz)
- Oscillator:
- Integrated 32.768 kHz
- Compatibility:
- PCF8563 register-compatible
- Timekeeping Current:
- ~250 nA @ 3V
Compatibility & sourcing notes
The RV-8564 is register/command compatible with the PCF8563: the same 16-register map with auto-increment, the same I²C address (0xA2), and 400kHz Fast-Mode, so PCF8563 firmware runs unchanged (Linux uses one driver for both). It is not pin-compatible, however — the RV-8564 is a leadless ceramic module with embedded crystal (C2 SON-10 5.0×3.2mm, C3 3.7×2.5mm), so the PCF8563 SOIC-8 footprint must be re-laid-out.
Registers and interface are similar and firmware largely ports, but the package/pinout differs — re-layout and validate in your design.
Frequently asked questions
Can RV-8564 replace the PCF8563? ▾
The RV-8564 is register/command compatible with the PCF8563: the same 16-register map with auto-increment, the same I²C address (0xA2), and 400kHz Fast-Mode, so PCF8563 firmware runs unchanged (Linux uses one driver for both). It is not pin-compatible, however — the RV-8564 is a leadless ceramic module with embedded crystal (C2 SON-10 5.0×3.2mm, C3 3.7×2.5mm), so the PCF8563 SOIC-8 footprint must be re-laid-out.
What should I check when replacing the PCF8563? ▾
Registers and interface are similar and firmware largely ports, but the package/pinout differs — re-layout and validate in your design.
Is the RV-8564 in stock, and can I get a quote? ▾
JLink Technology is an authorized distributor and supplies RV-8564 with stock, pricing, and lead time. Click "Request a Quote" with your quantity and we reply within one business day.