ADUCM360 AD [Analog Devices], ADUCM360 Datasheet - Page 18

• Manufacturer Part Number: ADUCM360
• Description: Low Power Precision Analog Microcontroller
• Manufacturer: AD [Analog Devices]

ADuCM360/ADuCM361
Pin No.
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
Mnemonic
AIN3
AIN4/IEXC
GND_SW
VREF+
VREF−
AGND
AVDD
AVDD_REG
DAC
INT_REF
IREF
AIN5/IEXC
AIN6/IEXC
AIN7/VBIAS0/IEXC/EXT_REF2IN+
AIN8/EXT_REF2IN-
AIN9
AIN10
AIN11/VBIAS1
P0.0/MISO1
P0.1/SCLK1/SCL/SIN
P0.2/MOSI1/SDA/SOUT
P0.3/IRQ0/ CS1
P0.4/RTS/ECLKO
P0.5/CTS/IRQ1
Description
Differential or single ended modes.
Differential or single ended modes.
ADC Analog Input 4. This pin can be configured as a positive or negative input to either ADC in
Differential or single ended modes.
Or, it may be configured as the output pin for either Excitation current source 0 or 1.
Sensor Power Switch to Analog Ground Reference.
External Reference Positive Input, an external reference can be applied between VREF+ and
VREF-.
External Reference Negative Input, an external reference can be applied between VREF+ and
VREF-.
Analog System Ground reference pin.
Analog System Supply pin.
Internal Analog Regulator Supply Output. This pin must be connected to ground via a 470nF
capacitor.
Note: This pin must be connected to pin 7, DVDD_REG
DAC Voltage Output
This pin must be connected to ground via a 470nF decoupling capacitor.
Optional reference current resistor connection for the Excitation current sources.
Reference current set by low drift external resistor (5ppm/C).
Multi-Function Pin: ADC Analog Input 5. This pin can be configured as a positive or negative input
to either ADC in Differential or single ended modes. Alternatively, it may be configured as the
output pin for either Excitation current source 0 or 1. Or, it may be configured as the output pin for
either Excitation current source 0 or 1.
Multi-Function Pin: ADC Analog Input 6. This pin can be configured as a positive or negative input
to either ADC in Differential or single ended modes.
Or, it may be configured as the output pin for either Excitation current source 0 or 1.
Multi-Function Pin: ADC Analog Input 7. This pin can be configured as a positive or negative input
to either ADC in differential or single ended modes. Alternatively, this pin can be configured as an
analog output pin to generate a Bias Voltage, VBIAS3 of AVDD_REG/2.
Or, it may be configured as the output pin for either Excitation current source 0 or 1. Alternatively,
this pin can be configured as an external reference 2 positive input.
Multi-Function Pin: ADC Analog Input 8. This pin can be configured as a positive or negative input
to either ADC in Differential or single ended modes. Alternatively, this pin can be configured as an
external reference 2 negative input.
ADC Analog Input 9. This pin can be configured as a positive or negative input to either ADC in
Differential or single ended modes. Alternatively, this pin can be configured as the non-inverting
input to the DAC output buffer when the DAC is configured for NPN mode.
ADC Analog Input 10. This pin can be configured as a positive or negative input to either ADC in
Differential or single ended modes.
Multi-Function Pin: ADC Analog Input 11. This pin can be configured as a positive or negative input
to either ADC in Differential or single ended modes. Alternatively, this pin can be configured as an
analog output pin to generate a Bias Voltage, VBIAS5 of AVdd/2.
General-Purpose Input and General-Purpose Output P0.0/SPI1 Master In – Slave out Pin.
This is a dual function input/output pin.
General-Purpose Input and General-Purpose Output P0.1/SPI1 Serial Clock Pin/I
Pin/ UART Serial Input. This is a multi function input/output pin.
This pin will be the data input for the UART downloader.
General-Purpose Input and General-Purpose Output P0.2/ SPI1 Master Out – Slave In Pin /I
Serial Data Pin/ UART Serial output. This is a multi function input/output pin.
This pin will be the data output for the UART downloader.
General-Purpose Input and General-Purpose Output P0.3/ External Interrupt Request 0/ SPI1
Chip Select Pin (Active Low). This is a triple function input/output pin.
General-Purpose Input and General-Purpose Output P0.4/ Request-to-Send Signal in UART
Mode/ Clock out (for test purposes) pin. This is a triple function input/output pin.
General-Purpose Input and General-Purpose Output P0.5/ Clear-to-Send Signal in UART Mode. /
External Interrupt Request 1.
ADC Analog Input 3. This pin can be configured as a positive or negative input to either ADC in
Rev. Pr R Page 18 of 21
Preliminary Technical Data
2
C Serial Clock
2
C