SWRS128 June 2014 CC2541-Q1
PRODUCTION DATA.
The CC2541-Q1 pinout is shown in Figure 3-1 and a short description of the pins follows.
PINS | TYPE | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
AVDD1 | 28 | Power (analog) | 2-V–3.6-V analog power-supply connection |
AVDD2 | 27 | Power (analog) | 2-V–3.6-V analog power-supply connection |
AVDD3 | 24 | Power (analog) | 2-V–3.6-V analog power-supply connection |
AVDD4 | 29 | Power (analog) | 2-V–3.6-V analog power-supply connection |
AVDD5 | 21 | Power (analog) | 2-V–3.6-V analog power-supply connection |
AVDD6 | 31 | Power (analog) | 2-V–3.6-V analog power-supply connection |
DCOUPL | 40 | Power (digital) | 1.8-V digital power-supply decoupling. Do not use for supplying external circuits. |
DVDD1 | 39 | Power (digital) | 2-V–3.6-V digital power-supply connection |
DVDD2 | 10 | Power (digital) | 2-V–3.6-V digital power-supply connection |
GND | 1 | Ground pin | Connect to GND |
GND | — | Ground | The ground pad must be connected to a solid ground plane. |
GND | 4 | Ground pin | Connect to GND |
P0_0 | 19 | Digital I/O | Port 0.0 |
P0_1 | 18 | Digital I/O | Port 0.1 |
P0_2 | 17 | Digital I/O | Port 0.2 |
P0_3 | 16 | Digital I/O | Port 0.3 |
P0_4 | 15 | Digital I/O | Port 0.4 |
P0_5 | 14 | Digital I/O | Port 0.5 |
P0_6 | 13 | Digital I/O | Port 0.6 |
P0_7 | 12 | Digital I/O | Port 0.7 |
P1_0 | 11 | Digital I/O | Port 1.0 – 20-mA drive capability |
P1_1 | 9 | Digital I/O | Port 1.1 – 20-mA drive capability |
P1_2 | 8 | Digital I/O | Port 1.2 |
P1_3 | 7 | Digital I/O | Port 1.3 |
P1_4 | 6 | Digital I/O | Port 1.4 |
P1_5 | 5 | Digital I/O | Port 1.5 |
P1_6 | 38 | Digital I/O | Port 1.6 |
P1_7 | 37 | Digital I/O | Port 1.7 |
P2_0 | 36 | Digital I/O | Port 2.0 |
P2_1/DD | 35 | Digital I/O | Port 2.1 / debug data |
P2_2/DC | 34 | Digital I/O | Port 2.2 / debug clock |
P2_3/ OSC32K_Q2 | 33 | Digital I/O, Analog I/O | Port 2.3/32.768 kHz XOSC |
P2_4/ OSC32K_Q1 | 32 | Digital I/O, Analog I/O | Port 2.4/32.768 kHz XOSC |
RBIAS | 30 | Analog I/O | External precision bias resistor for reference current |
RESET_N | 20 | Digital input | Reset, active-low |
RF_N | 26 | RF I/O | Negative RF input signal to LNA during RX Negative RF output signal from PA during TX |
RF_P | 25 | RF I/O | Positive RF input signal to LNA during RX Positive RF output signal from PA during TX |
SCL | 2 | I2C clock or digital I/O | Can be used as I2C clock pin or digital I/O. Leave floating if not used. If grounded disable pull up |
SDA | 3 | I2C clock or digital I/O | Can be used as I2C data pin or digital I/O. Leave floating if not used. If grounded disable pull up |
XOSC_Q1 | 22 | Analog I/O | 32-MHz crystal oscillator pin 1 or external clock input |
XOSC_Q2 | 23 | Analog I/O | 32-MHz crystal oscillator pin 2 |