ST62T09CM6 STMicroelectronics, ST62T09CM6 Datasheet - Page 52

• Manufacturer Part Number: ST62T09CM6
• Description: Microcontrollers (MCU) OTP EPROM 1K No Intf
• Manufacturer: STMicroelectronics

Specifications of ST62T09CM6

• Processor Series: ST62T0x
• Core: ST6
• Data Bus Width: 8 bit
• Program Memory Type: EPROM
• Program Memory Size: 1 KB
• Data Ram Size: 64 B
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 12
• Number Of Timers: 2
• Operating Supply Voltage: 3 V to 6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOP-20
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• 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.
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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.