DSPIC30F2012-20I/ML Microchip Technology, DSPIC30F2012-20I/ML Datasheet - Page 111

• Manufacturer Part Number: DSPIC30F2012-20I/ML
• Description: IC DSPIC MCU/DSP 12K 28QFN
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F2012-20I/ML

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 MIPS
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 20
• Program Memory Size: 12KB (4K x 24)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 10x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Core Frequency: 40MHz
• Embedded Interface Type: I2C, SPI, UART
• No. Of I/o's: 20
• Flash Memory Size: 12KB
• Supply Voltage Range: 2.5V To 5.5V
• Operating Temperature Range: -40°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: DSPIC30F201220IML

16.0
The 12-bit Analog-to-Digital converter (A/D) allows
conversion of an analog input signal to a 12-bit digital
number. This module is based on a Successive
Approximation Register (SAR) architecture and pro-
vides a maximum sampling rate of 100 ksps. The A/D
module has up to 10 analog inputs which are multi-
plexed into a sample and hold amplifier. The output of
the sample and hold is the input into the converter
which generates the result. The analog reference volt-
age is software selectable to either the device supply
voltage (AV
(V
feature of being able to operate while the device is in
Sleep mode with RC oscillator selection.
FIGURE 16-1:
© 2005 Microchip Technology Inc.
Note: This data sheet summarizes features of this group
of dsPIC30F devices and is not intended to be a complete
reference source. For more information on the CPU,
peripherals, register descriptions and general device
functionality, refer to the dsPIC30F Family Reference
Manual (DS70046).
REF
A
+/V
A
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN8
AN9
VDD
VSS
12-BIT ANALOG-TO-DIGITAL
CONVERTER (A/D) MODULE
REF
/V
/V
REF
REF
DD
-) pin. The A/D converter has a unique
+
-
/AV
SS
) or the voltage level on the
12-BIT A/D FUNCTIONAL BLOCK DIAGRAM
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
dsPIC30F2011/2012/3012/3013
S/H
Preliminary
Sample
CH0
The A/D module has six 16-bit registers:
• A/D Control Register 1 (ADCON1)
• A/D Control Register 2 (ADCON2)
• A/D Control Register 3 (ADCON3)
• A/D Input Select Register (ADCHS)
• A/D Port Configuration Register (ADPCFG)
• A/D Input Scan Selection Register (ADCSSL)
The ADCON1, ADCON2 and ADCON3 registers
control the operation of the A/D module. The ADCHS
register selects the input channels to be converted. The
ADPCFG register configures the port pins as analog
inputs or as digital I/O. The ADCSSL register selects
inputs for scanning.
The block diagram of the 12-bit A/D module is shown in
Figure 16-1.
Note:
12-bit SAR
Switches
The SSRC<2:0>, ASAM, SMPI<3:0>,
BUFM and ALTS bits, as well as the
ADCON3 and ADCSSL registers, must
not be written to while ADON = 1. This
would lead to indeterminate results.
DAC
Input
16-word, 12-bit
Sample/Sequence
Dual Port
Buffer
Comparator
Conversion Logic
Control
Input Mux
Control
DS70139C-page 109