ST6201C 查看數據表（PDF） - STMicroelectronics

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ST6201C

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

STMicroelectronics 

ST6200C/ST6201C/ST6203C

11.5 CLOCK AND TIMING CHARACTERISTICS

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

11.5.1 General Timings

Symbol

Parameter

Conditions

tc(INST)

tv(IT)

Instruction cycle time

Interrupt reaction time 2)

tv(IT) = ∆tc(INST) + 6

fCPU=8 MHz

fCPU=8 MHz

Min

2

3.25

6

9.75

Typ 1)

4

6.5

Max

5

8.125

11

17.875

Unit

tCPU

µs

tCPU

µs

11.5.2 External Clock Source

Symbol

VOSCINH

VOSCINL

IL

Parameter

OSCIN input pin high level voltage

OSCIN input pin low level voltage

OSCx Input leakage current

Conditions

See Figure 43

VSS≤VIN≤VDD

Min

Typ

0.7xVDD

VSS

Max

VDD

0.3xVDD

±2

Unit

V

µA

Notes:

1. Data based on typical application software.

2. Time measured between interrupt event and interrupt vector fetch. ∆tc(INST) is the number of tCPU cycles needed to finish

the current instruction execution.

Figure 43. Typical Application with an External Clock Source

VOSCINH

VOSCINL

90%

10%

Not connected

OSCOUT

EXTERNAL

CLOCK SOURCE

OSCIN

fOSC

IL

ST62XX

68/100

1

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