
QEdge UI
qinno/qEdge-UI
qedge+ is the industry's low power design alternative to the standard PC approach. qEdge-UI is part of qEdge+ and consists of a RaspBerry Pico with LCD, touch screen and keys and an 868MHz LoRa radio module.
NXP SemiconductorsExtended
-40℃~+85℃ 1.6V~5.5V 150nA Built-in I2C Watchdog timer、Backup power management and battery charging、Battery low-voltage detection、Programmable clock output、Alarm function、Sleep/Wake control、Periodic interrupt output、Countdown timer Yes TSSOP-14 Real Time Clocks ROHS
The PCF8523TS/1 is a real Time Clock made by NXP Semiconductors in a TSSOP-14 package with 14 pins. -40℃~+85℃ 1.6V~5.5V 150nA Built-in I2C Watchdog timer、Backup power management and battery charging、Battery low-voltage detection、Programmable clock output、Alarm function、Sleep/Wake control、Periodic interrupt output、Countdown timer Yes TSSOP-14 Real Time Clocks ROHS.
PCBKit's library has its KiCad symbol (Timer_RTC:PCF8523TS, from KiCad's library) and its footprint (Package_SO:TSSOP-14_4.4x5mm_P0.65mm, from KiCad's library), ready for a KiCad board. 65 are in stock at JLCPCB (part C2669512). 2 open-source boards in 2 repositories on GitHub use it.
| Pin | Name | Type |
|---|---|---|
| 1 | OSCI | Input |
| 2 | OSCO | Output |
| 3 | NC | Not connected |
| 4 | VBAT | Power in |
| 5 | VSS | Power in |
| 6 | NC | Not connected |
| 7 | INT2 | Open collector |
| 8 | CLKOUT | Open collector |
| 9 | NC | Not connected |
| 10 | SDA | Input/output |
| 11 | SCL | Input |
| 12 | NC | Not connected |
| 13 | INT1/CLKOUT | Output |
| 14 | VDD | Power in |

qinno/qEdge-UI
qedge+ is the industry's low power design alternative to the standard PC approach. qEdge-UI is part of qEdge+ and consists of a RaspBerry Pico with LCD, touch screen and keys and an 868MHz LoRa radio module.

millerlp/BivalveBit_hardware
Heart rate and valve gape sensor wearable for oysters and mussels
Yes. The symbol is Timer_RTC:PCF8523TS and the footprint Package_SO:TSSOP-14_4.4x5mm_P0.65mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
TSSOP-14, with 14 pins. Its footprint is drawn on this page.
NXP Semiconductors publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C2669512, with 65 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the MCP795W22-I/ST by Microchip Technology, the EM3028V3TP14B by EM Microelectronic, the MCP795W10-I/ST by Microchip Technology and the MCP795W11-I/ST by Microchip Technology. Check their datasheets: a part that fits the footprint may still differ in its ratings.
2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.