PCF8564ACX9: Real time clock and calendar
The PCF8564A is a CMOS real-time clock and calendar optimized for low power consumption. A programmable clock output, interrupt output and voltage low detector are also provided. All addresses and data are transferred serially via a two-line bidirectional I²C-bus. Maximum bus speed is 400 kbit/s. The built-in word address register is incremented automatically after each written or read data byte.
PCF8564ACX9: Product Block Diagram
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| Real time clock and calendar (REV 3.0) PDF (381.0 kB) PCF8564A | 27 Aug 2013 |
Application Notes (2)
| Name/Description | Modified Date |
|---|---|
| ESD and EMC sensitivity of IC (REV 1.0) PDF (745.0 kB) AN10853 | 14 Mar 2013 |
| Improved timekeeping accuracy with PCF8563 using external temperature sensor (REV 1.0) PDF (288.0 kB) AN10652 | 05 Nov 2007 |
Users Guides (5)
| Name/Description | Modified Date |
|---|---|
| User Manual for NXP® Real Time Clocks PCF85x3, PCF85x63, PCA8565, PCF2123, and PCA21125 (REV 2.1) PDF (961.0 kB) UM10301 | 24 Jul 2015 |
| Store and transport requirements (REV 3.0) PDF (325.0 kB) UM10569 | 10 Mar 2015 |
| I2C-bus specification and user manual (REV 6.0) PDF (1.4 MB) UM10204 | 28 Apr 2014 |
| I2C-bus specification and user manual (REV 5.0) PDF (1.6 MB) UM10204_JA | 03 Apr 2013 |
| I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM10206 | 13 Jun 2006 |
Brochures (2)
| Name/Description | Modified Date |
|---|---|
| NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns (REV 1.0) PDF (3.5 MB) 75017540 | 01 Aug 2014 |
| Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... (REV 1.0) PDF (1.1 MB) 75016543 | 01 Jun 2008 |
Ordering Information
| Product | Status | package version | resolution | interface | VDD (interface) (V) | watchdog timer | programmable alarm | countdown timer | stop-watch mode | VDD (clock) (V) | leap year tracking | IDD (nA) | temperature compensation | Tamb (Cel) | AEC-Q100 compliant |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCF8564ACX9/1 | No Longer Manufactured | NAU000 | 1 sec to year | I2C | 1.8 to 5.5 | yes | yes | yes | 1.0 to 5.5 | yes | 250 | no | -40 to +85 | no | |
| PCF8564ACX9/B/1 | No Longer Manufactured | NAU000 | 1 sec to year | I2C | 1.8 to 5.5 | yes | yes | yes | 1.0 to 5.5 | yes | 250 | no | -40 to +85 | no |
