
PCF8523T
NXP Semiconductors
Real-Time Clock (RTC) and calendar
- Part id
- nxp/PCF8523T
- Category
- Uncategorised
- Package
- SOIC8
- Pins
- 8
- Used on
- 53 open-source boards
Overview
The PCF8523T is an uncategorised made by NXP Semiconductors in a SOIC8 package with 8 pins. Real-Time Clock (RTC) and calendar.
PCBKit's library has its KiCad symbol (Timer_RTC:PCF8523T, from KiCad's library) and its footprint (Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 53 open-source boards in 44 repositories on GitHub use it.
Symbol
Footprint
Pinout
8| Pin | Name | Type |
|---|---|---|
| 1 | OSCI | Input |
| 2 | OSCO | Output |
| 3 | VBAT | Power in |
| 4 | VSS | Power in |
| 5 | SDA | Input/output |
| 6 | SCL | Input |
| 7 | INT1/CLKOUT | Open collector |
| 8 | VDD | Power in |
- 2 layers19 × 106 mm

- 2 layers158 × 85 mm

- 2 layers36 × 29.3 mm

Ble mvp 1b rev0
saewoonam/ble_adv_covid
Repo to implement the advertise and scanner portion for bluetooth to enable encounter/exposure tracing (e.g. Apple/Google / TCN / etc...) on a nRF52840 based battery powered dongle/device
71 parts10 - 2 layers115 × 100 mm

Cog1
diegodemarco/cog1
cog1 is an open-source industrial IoT gateway (hardware and software) built as a motherboard hosting an Orange Pi Zero 3 Linux SBC.
133 parts6MIT - 2 layers104 × 43.3 mm

Serial snooper
can-caglar/Data-Logger-STM32
The Serial Snooper is a UART data logger with automatic baud rate detection, real-time data stamping and a command-line-interface for configuration, running on an STM32F3 microcontroller.
101 parts4 - 2 layers49.5 × 106 mm

Supra board
jsenzel1/supra
is multimode Eurorack module with 4 different experiments in long term time. you can run up to 2 modes at once. use the 4 way joystick and buttons to interact with the modes on the oled
119 parts4 - 2 layers48.3 × 123.8 mm

Altimeter v2
pimbongaerts/altimeter
Underwater sonar/USBL interface for photogrammetry surveys. PCB design files and Arduino code.
74 parts4 - 2 layers

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Questions
Is there a KiCad symbol and footprint for the PCF8523T?
Yes. The symbol is Timer_RTC:PCF8523T and the footprint Package_SO:SOIC-8_3.9x4.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the PCF8523T?
SOIC8, with 8 pins. Its footprint is drawn on this page.
What can replace the PCF8523T?
Parts like it in the library: the LTA8062XS8/R8 by Linearin, the SD8568 by WAVE, the FH9926 by XIN FEI HONG and the LTC8836XS8/R8 by Linearin. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the PCF8523T?
53 boards in 44 repositories on GitHub; the most starred are listed on this page, with their KiCad files.