PCF2123: SPI Real time clock/calendar
The PCF2123 is a CMOS Real-Time Clock (RTC) and calendar optimized for low power applications. Data is transferred serially via a Serial Peripheral Interface (SPI-bus) with a maximum data rate of 6.25 Mbit/s. An alarm and timer function is also available providing the possibility to generate a wake-up signal on an interrupt pin. An offset register allows fine tuning of the clock.
PCF2123: Product Block Diagram
Outline 3d SOT402-1
Data Sheets (1)
| Name/Description | Modified Date |
|---|---|
| SPI Real time clock/calendar (REV 6.0) PDF (802.0 kB) PCF2123 | 15 Jul 2013 |
Application Notes (3)
| Name/Description | Modified Date |
|---|---|
| Improved timekeeping accuracy with PCF85063, PCF8523 and PCF2123 using an external temperature sensor (REV 1.0) PDF (309.0 kB) AN11247 | 06 Mar 2015 |
| ESD and EMC sensitivity of IC (REV 1.0) PDF (745.0 kB) AN10853 | 14 Mar 2013 |
| Handling bare die (REV 2.0) PDF (1.6 MB) AN10706 | 16 Jun 2011 |
Users Guides (3)
| Name/Description | Modified Date |
|---|---|
| Demo board OM13512 for the SPI-bus RTC PCF2123 (REV 1.0) PDF (391.0 kB) UM10759 | 05 Oct 2015 |
| 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 |
Brochures (1)
| Name/Description | Modified Date |
|---|---|
| NXP® ultra-low-power RTC/calendars PCF8523 & PCF2123 (REV 2.0) PDF (290.0 kB) 75017076 | 10 Mar 2011 |
Package Information (2)
| Name/Description | Modified Date |
|---|---|
| plastic thin shrink small outline package; 14 leads; body width 4.4 mm (REV 1.0) PDF (285.0 kB) SOT402-1 | 08 Feb 2016 |
| plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 3 x 3 x 0.85 mm (REV 1.0) PDF (201.0 kB) SOT758-1 | 08 Feb 2016 |
Packing (2)
| Name/Description | Modified Date |
|---|---|
| HVQFN16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 2.0) PDF (262.0 kB) SOT758-1_118 | 18 Apr 2013 |
| TSSOP14; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (217.0 kB) SOT402-1_118 | 08 Apr 2013 |
Supporting Information (1)
| Name/Description | Modified Date |
|---|---|
| Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE | 08 Oct 2009 |
Ordering Information
| Product | resolution | Interface | VDD (interface) (V) | watchdog timer | Programmable alarm | countdown timer | Special features | VDD (clock) (V) | Leap year tracking | IDD (nA) | temperature compensation | Tamb (Cel) | AEC-Q100 compliant |
|---|
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCF2123U/10AA/1 | Active | PCF2123U/10AA/1,00 (9352 875 42005) | Standard Marking | PCF2123U/10AA/1 |    | Always Pb-free | 5 | 2E8 | NA | NA | ||||
| PCF2123U/12AA/1 | Discontinued | PCF2123U/12AA/1,00 (9352 906 47005) | Standard Marking | PCF2123U/12AA/1 | | Always Pb-free | 5 | 2E8 | NA | NA | ||||
| PCF2123U/12HA/1 | Active | PCF2123U/12HA/1,00 (9352 929 66005) | Standard Marking | PCF2123U/12HA/1 | | Always Pb-free | 5 | 2E8 | NA | NA | ||||
| PCF2123U/5GA/1 | Discontinued | PCF2123U/5GA/1,015 (9352 954 29015) | Standard Marking | PCF2123U/5GA/1 | | Always Pb-free | 5 | 2E8 | NA | NA | ||||
| PCF2123TS/1 | | SOT402-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCF2123TS/1,118 (9352 863 84118) | PCF2123 | PCF2123TS/1 | | Always Pb-free | 5 | 2E8 | 1 | 1 |
| Bulk Pack | Discontinued | PCF2123TS/1,112 (9352 863 84112) | PCF2123 | PCF2123TS/1 | | Always Pb-free | 5 | 2E8 | 1 | 1 | ||||
| PCF2123BS/1 |  | SOT758-1 | Reel 13" Q1/T1 in Drypack | Active | PCF2123BS/1,518 (9352 863 82518) | 123 | PCF2123BS/1 | | Always Pb-free | 5 | 2E8 | 3 | 3 | |
| Tube in Drypack | Discontinued | PCF2123BS/1,512 (9352 863 82512) | 123 | PCF2123BS/1 | | Always Pb-free | 5 | 2E8 | 3 | 3 |
- SPI Real time clock/calendar PCF2123
- Improved timekeeping accuracy with PCF85063, PCF8523 and PCF2123 using an external temperature sensor PCF85063BTL
- ESD and EMC sensitivity of IC pcf8576d_automotive
- Handling bare die pcf8576d_automotive
- Demo board OM13512 for the SPI-bus RTC PCF2123 PCF2123
- User Manual for NXP® Real Time Clocks PCF85x3, PCF85x63, PCA8565, PCF2123, and PCA21125 pca8565ts
- Store and transport requirements pcf8576d_automotive
- NXP® ultra-low-power RTC/calendars PCF8523 & PCF2123 PCF2123
- HVQFN16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... PCF2123
- plastic thin shrink small outline package; 14 leads; body width 4.4 mm 74LV164_Q100
- SSOP-TSSOP-VSO-WAVE LPC1114FDH28
- TSSOP14; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... 74LV164_Q100
- plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 3 x 3 x 0.85 mm PCF2123
- PCF2123
- 74LV164
- PCF7900VHN
