4 layers85.7 × 73.9 mm
PCF2127AT/2Y
NXP Semiconductors
-40℃~+85℃ 0.7uA 1.8V~4.2V 700nA Built-in SPI、I2C Temperature compensation、Backup power management and battery charging、Battery low-voltage detection、InsideSRAM/NVRAM、Timestamp function、Programmable clock output、Alarm function、Locking and tamper-proof、Periodic interrupt output、Countdown timer Yes SOIC-20-300mil Real Time Clocks ROHS
Extended
- Category
- Real Time Clocks
- Package
- SOIC-20-300mil
- Pins
- 20
Overview
The PCF2127AT/2Y is a real Time Clock made by NXP Semiconductors in a SOIC-20-300mil package with 20 pins. -40℃~+85℃ 0.7uA 1.8V~4.2V 700nA Built-in SPI、I2C Temperature compensation、Backup power management and battery charging、Battery low-voltage detection、InsideSRAM/NVRAM、Timestamp function、Programmable clock output、Alarm function、Locking and tamper-proof、Periodic interrupt output、Countdown timer Yes SOIC-20-300mil Real Time Clocks ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:PCF2127AT_2Y, from EasyEDA) and its footprint (Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C2669496). 1 open-source board in 1 repository on GitHub use it.
Symbol
Footprint
Parameters
7- Alarm Output
- Yes
- Current - Supply
- 700nA
- Interface
- I2C；SPI
- Operating Temperature
- -40℃~+85℃
- Quiescent Current(Iq)
- 0.7uA
- Voltage - Supply
- 1.8V~4.2V
- crystal oscillator
- Built-In
Order codes
1- PCF2127AT/2YLCSC C2669496
Pinout
20| Pin | Name | Type |
|---|---|---|
| 1 | SCL | Unspecified |
| 2 | SDI | Unspecified |
| 3 | SDO | Unspecified |
| 4 | SDA/CE# | Unspecified |
| 5 | IFS | Unspecified |
| 6 | TS# | Unspecified |
| 7 | CLKOUT | Unspecified |
| 8 | VSS | Unspecified |
| 9 | n.c | Unspecified |
| 10 | n.c | Unspecified |
| 11 | n.c | Unspecified |
| 12 | n.c | Unspecified |
| 13 | TEST | Unspecified |
| 14 | PFO# | Unspecified |
| 15 | PFI | Unspecified |
| 16 | RST# | Unspecified |
| 17 | INT# | Unspecified |
| 18 | BBS | Unspecified |
| 19 | VBAT | Unspecified |
| 20 | VDD | Unspecified |
Open-source boards using it
All 1Show this part on your page
<iframe src="https://pcbkit.io/embed/parts/nxp/PCF2127AT/2Y" title="PCF2127AT/2Y in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/nxp/PCF2127AT/2Y.jpg" alt="PCF2127AT/2Y" width="1200" height="900">[](https://pcbkit.io/parts/nxp/PCF2127AT/2Y)Questions
Is there a KiCad symbol and footprint for the PCF2127AT/2Y?
Yes. The symbol is EasyEDA_Cloud:PCF2127AT_2Y and the footprint Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the PCF2127AT/2Y?
SOIC-20-300mil, with 20 pins. Its footprint is drawn on this page.
Where is the PCF2127AT/2Y datasheet?
NXP Semiconductors publishes it: the Datasheet link on this page opens it.
Where can I order the PCF2127AT/2Y?
JLCPCB lists it as part C2669496, with 0 in stock; the sellers' links on this page open their listings.
What can replace the PCF2127AT/2Y?
Parts like it in the library: the PCF2129AT/2 by NXP Semiconductors, the DS3232SN#T&R by Maxim Integrated (Analog Devices), the DS3232S#T&R by Maxim Integrated (Analog Devices) and the DS3234S#T&R by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the PCF2127AT/2Y?
1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
8
PCF2129AT/2
SOIC-20-300mil-40℃~+85℃ 0.7uA 1.8V~4.2V 700nA Built-in I2C Watchdog timer、Temperature compensation、Backup power management and battery charging、Battery low-voltage detection、Timestamp function、Programmable clock output、Alarm function、Locking and tamper-proof、Periodic interrupt output Yes SOIC-20-300mil Real Time Clocks ROHSNXP SemiconductorsReal Time ClocksDS3232SN#T&R
SO-20-300mil-40℃~+85℃ 100nA 2.3V~5.5V 200uA Built-in I2C Temperature compensation、Backup power management and battery charging、InsideSRAM/NVRAM、Programmable clock output、Alarm function Yes SO-20-300mil Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time ClocksDS3232S#T&R
SOIC-20-300mil0℃~+70℃ 2.3V~5.5V Built-in I2C Temperature compensation、Backup power management and battery charging、InsideSRAM/NVRAM、Programmable clock output、Alarm function SOIC-20-300mil Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time ClocksDS3234S#T&R
SO-20-300mil0℃~+70℃ 100nA 2V~5.5V 400uA Built-in SPI Temperature compensation、InsideSRAM/NVRAM、Programmable clock output、Alarm function Yes SO-20-300mil Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time ClocksDS3232S#
SOIC-20-300mil0℃~+70℃ 2.3V~5.5V Built-in I2C Temperature compensation、Backup power management and battery charging、InsideSRAM/NVRAM、Programmable clock output、Alarm function SOIC-20-300mil Real Time Clocks ROHSAnalog DevicesReal Time ClocksDS3234SN#T&R
SO-20-300mil-40℃~+85℃ 2V~5.5V 400uA Built-in SPI Temperature compensation、Backup power management and battery charging、InsideSRAM/NVRAM、Programmable clock output、Alarm function Yes SO-20-300mil Real Time Clocks ROHSMaxim Integrated (Analog Devices)Real Time ClocksCDP68HC68T1MZ
SOIC-20-300milWatchdog timer、Backup power management and battery charging、InsideSRAM/NVRAM、Programmable clock output、Alarm function、Sleep/Wake control、Periodic interrupt output SOIC-20-300mil Real Time Clocks ROHSRenesas ElectronicsReal Time ClocksISL12022MIBZ-TR5421
SOIC-20-300mil-40℃~+85℃ 1uA 2.7V~5.5V 4.1uA Built-in I2C Temperature compensation、Backup power management and battery charging、Battery low-voltage detection、InsideSRAM/NVRAM、Timestamp function、Programmable clock output、Alarm function、ESD/Overvoltage protection Yes SOIC-20-300mil Real Time Clocks ROHSRenesas ElectronicsReal Time Clocks