ST62T20CB3 STMicroelectronics, ST62T20CB3 Datasheet - Page 52

• Manufacturer Part Number: ST62T20CB3
• Description: IC MCU 8BIT W/ADC 20-PDIP
• Manufacturer: STMicroelectronics
• Series: ST6r

Specifications of ST62T20CB3

• Core Processor: ST6
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: LVD, POR, WDT
• Number Of I /o: 12
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: OTP
• Ram Size: 64 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 6 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Processor Series: ST62T2x
• Core: ST6
• Data Bus Width: 8 bit
• Data Ram Size: 64 B
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 1
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Development Tools By Supplier: ST622XC-KIT/110, ST62GP-EMU2, ST62E2XC-EPB/110, ST62E6XC-EPB/US, STREALIZER-II
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

ST6208C/ST6209C/ST6210C/ST6220C
8.3 A/D CONVERTER (ADC)
8.3.1 Introduction
The on-chip Analog to Digital Converter (ADC) pe-
ripheral is a 8-bit, successive approximation con-
verter. This peripheral has multiplexed analog in-
put channels (refer to device pin out description)
that allow the peripheral to convert the analog volt-
age levels from different sources.
The result of the conversion is stored in a 8-bit
Data Register. The A/D converter is controlled
through a Control Register.
Figure 34. ADC Block Diagram
Note: ADC not present on some devices. See device summary on page 1.
52/104
1
AIN0
AIN1
AINx
EAI EOC STA PDS
PORT
MUX
f
I/O PORT
INT
DDRx
ORx
DRx
CR3
AD
OSC
OFF
ADR7 ADR6 ADR5 ADR4
8.3.2 Main Features
■
■
■
■
■
■
■
The block diagram is shown in
CR1
AD
DIV 12
ADR
8-bit conversion
Multiplexed analog input channels
Linear successive approximation
Data register (DR) which contains the results
End of Conversion flag
On/Off bit (to reduce consumption)
Typical conversion time 70 µs (with an 8 MHz
crystal)
CR0
AD
ADCR
ANALOG TO DIGITAL
f
ADR3
ADC
CONVERTER
ADR2 ADR1
Figure
ADR0
34.