AT83SND1CXXX-ROTIL datasheet(183/212 Pages) ATMEL

tên linh kiện	AT83SND1CXXX-ROTIL

Giải thích chi tiết về linh kiện	Single-Chip Flash Microcontroller with MP3 Decoder and Human Interface

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183

4109J–8051–10/06

AT8xC51SND1C

22.2.2

A to D Converter

Table 145. A to D Converter DC Characteristics

DD = 2.7 to 3.3 V, TA = -40 to +85°C

22.2.3

Oscillator & Crystal

22.2.3.1

Schematic

Figure 22-4. Crystal Connection

Note:

For operation with most standard crystals, no external components are needed on X1 and X2. It

may be necessary to add external capacitors on X1 and X2 to ground in special cases (max 10

pF). X1 and X2 may not be used to drive other circuits.

22.2.3.2

Parameters

Table 146. Oscillator & Crystal Characteristics

DD = 2.7 to 3.3 V, TA = -40 to +85°C

Symbol

Parameter

Min

Typ

Max

Units

Test Conditions

Analog Supply Voltage

2.7

3.3

AIDD

Analog Operating Supply Current

600

μA

DD= 3.3V

AIN1:0= 0 to AVDD

ADEN= 1

AIPD

Analog Standby Current

μA

DD= 3.3V

ADEN= 0 or PD= 1

Analog Input Voltage

AVREF

Reference Voltage

AREFN

REFP

AVSS

2.4

REF

AREF Input Resistance

A= 25°C

Analog Input capacitance

A= 25°C

VSS

Symbol

Parameter

Min

Typ

Max

Unit

Internal Capacitance (X1 - VSS)

Internal Capacitance (X2 - VSS)

Equivalent Load Capacitance (X1 - X2)

Drive Level

μW

Crystal Frequency

MHz

Crystal Series Resistance

Crystal Shunt Capacitance

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