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nrf51822-CEAA Minimal System

Overview

I bought a lot of brand new CEAA with ribbons for two yuan a piece . I drew a fully functional test board (about 5*3cm) with all the pins out.

The size of CEAA is very small, about 3mm*3mm, which is a quarter of the area of common QFAA . Several vias have to be drilled on the pads. If there is poor contact, please cover it with green oil.

product properties	attribute value
manufacturer:	Nordic Semiconductor
Product Category:	RF System on Chip - SoC
type:	Bluetooth
core:	ARM Cortex M0
Maximum data rate:	2 Mbps
Sensitivity:	- 85 dBm
Working power supply voltage:	1.8 V to 3.6 V
Program memory size:	128kB, 256kB
ADC resolution:	10 bits
trademark:	Nordic Semiconductor
Data RAM size:	16kB, 32kB
Interface Type:	SPI, UART, I²C
Maximum clock frequency:	16MHz
Installation style:	SMD/SMT
Number of input/output terminals:	32 I/O
product type:	RF System on a Chip-SoC
Program memory type:	Flash
Subcategory:	Wireless & RF Integrated Circuits
technology:	Si

Design Files

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Update:2025-06-20 10:54:15

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