ST6220CD3/HWD View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST6220CD3/HWD

8-BIT MCUs WITH A/D CONVERTER, TWO TIMERS, OSCILLATOR SAFEGUARD & SAFE RESET

STMicroelectronics 

ST6208C/ST6209C/ST6210C/ST6220C

11.11 8-BIT ADC CHARACTERISTICS

Subject to general operating conditions for VDD, fOSC, and TA unless otherwise specified.

Symbol

Parameter

Conditions

Min

Typ 1)

Max

fOSC

VAIN

RAIN

tADC

tSTAB

ADI

Clock frequency

Conversion range voltage 2)

External input resistor

Total convertion time

fOSC=8MHz

fOSC=4MHz

Stabilization time 4)

Analog input current during conver-

sion

fOSC=8MHz

1.2

fOSC

VSS

VDD

10 3)

70

140

2

4

3.25

6.5

1.0

ACIN Analog input capacitance

2

5

Unit

MHz

V

kΩ

µs

tCPU

µs

µA

pF

Notes:

1. Unless otherwise specified, typical data are based on TA=25°C and VDD=5V.

2. The ADC refers to VDD and VSS.

3. Any added external serial resistor will downgrade the ADC accuracy (especially for resistance greater than 10kΩ). Data

based on characterization results, not tested in production.

4. As a stabilization time for the AD converter is required, the first conversion after the enable can be wrong.

Figure 72. Typical Application with ADC

VAIN

RAIN

AIN x

r≈150Ω

10pF

10MΩ

ADC

Note: ADC not present on some devices. See device summary on page 1.

ST62XX

88/105

1

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