Bluetooth Technical Comparison

Features
	BT 11	BT 31	BT 22	BT 23
Availability	Production	Q1 2011	Production	Production
Bluetooth Specification	v2.1 +EDR	v3.0	v2.1 +EDR	v2.1 +EDR
Bluetooth Power Class	1	1	2	2
Dimensions	27 x 15mm	27 x 15mm	13.5 x 10.4mm	13.5 x 11.6mm
Antenna	Internal Chip, or U.FL Connector	Internal Chip, or U.FL Connector	External Pin	Internal Chip
Max Data Throughput	2.2Mbps	2.2Mbps	2.2Mbps	2.2Mbps
RF Tx Output	+18dBm	+10dBm	+6dBm	+6dBm
RF Rx Sensitivity	-94dBm	-88dBm	-85dBm	-85dBm
Upper Layer Stack	Amp'ed UP	Amp'ed UP	Amp'ed UP	Amp'ed UP
AT Command Interface	abSerial	abSerial	abSerial	abSerial
Bluetooth Profiles	SPP, OBEX, DUN	SPP, OBEX, DUN	SPP, OBEX, DUN	SPP, OBEX, DUN
Input Voltage	2.7V - 3.6V	2.7V - 3.6V	2.7V - 3.6V	2.7V - 3.6V
Temperature, C	-40 + 85	-40 + 85	-40 + 85	-40 + 85
Sleep Power Consumption	240uA	60uA	2.6mA	2.6mA
Pin Count	24	24	14	14
GPIOs	16 GPIO (4 ADC, 1 DAC)	16 GPIO (4 ADC, 1 DAC)	4 GPIO (1 ADC)	6 GPIO (2 ADC, 1 DAC)
Serial Interfaces	UART, SPI, I2C, I2S, USB	UART, SPI, I2C, I2S, USB	UART, SPI, I2C	UART, SPI, I2C
Processor	ARM Cortex/70Mhz/256K Flash, 48K RAM	ARM Cortex/72Mhz/256K Flash, 48K RAM	ARM Cortex/70Mhz/256K Flash, 48K RAM	ARM Cortex/70Mhz/256K Flash, 48K RAM