Preliminary Technical Data

ADuCM360/ADuCM361

Rev. Pr R| Page 17 of 21

Pin Configuration and Function Descriptions

Figure 7. ADuCM360/ADuCM361 Pinout

Table 11. Pin Function Descriptions

Pin No.

Mnemonic

Description

1

RESET

Reset. Input pin, active low. An internal pull-up is provided.

2

P2.1/SDA/UARTDCD

pin may be the UART Data carrier Detect pin.

This is a multi function input/output pin.

3

P2.2/BM

General-Purpose Input and General Purpose Output P2.2/ Boot mode input select pin. When

this pin is held low during any reset sequence, the part will enter UART download mode.

This is a dual function input/output pin.

4

XTAL0

External Crystal Oscillator Output Pin. Optional 32.768kHz source for Real time clock.

5

XTAL1

External Crystal Oscillator Input Pin. Optional 32.768kHz source for Real time clock.

6

IOVDD

Digital System Supply pin.

7

DVDD_REG

Internal Digital Regulator Supply Output. This pin must be connected to ground via a 470nF

capacitor.

Note: This pin must be connected to pin 18, AVDD_REG

8

AIN0

ADC Analog Input 0. This pin can be configured as a positive or negative input to either ADC in

Differential or single ended modes.

9

AIN1

ADC Analog Input 1. This pin can be configured as a positive or negative input to either ADC in

Differential or single ended modes.

10

AIN2

ADC Analog Input 2. This pin can be configured as a positive or negative input to either ADC in