ST6200C datasheet(68/100 Pages) STMICROELECTRONICS

部件名	ST6200C

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

PDF	100 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

标志

68 / 100 page

ST6200C/ST6201C/ST6203C

68/100

10.5 CLOCK AND TIMING CHARACTERISTICS

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

10.5.1 General Timings

10.5.2 External Clock Source

Notes:

1. Data based on typical application software.

2. Time measured between interrupt event and interrupt vector fetch.

∆t

c(INST) is the number of tCPU cycles needed to finish

the current instruction execution.

Figure 43. Typical Application with an External Clock Source

Symbol

Parameter

Conditions

Min

Typ 1)

Max

Unit

tc(INST)

Instruction cycle time

tCPU

fCPU=8 MHz

3.25

6.5

8.125

µs

tv(IT)

Interrupt reaction time 2)

tv(IT) = ∆tc(INST) + 6

611

tCPU

fCPU=8 MHz

9.75

17.875

µs

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VOSCINH

OSCIN input pin high level voltage

See Figure 43

0.7xVDD

VDD

VOSCINL

OSCIN input pin low level voltage

VSS

0.3xVDD

OSCx Input leakage current

VSS≤VIN≤VDD

± 2

µA

OSCIN

OSCOUT

fOSC

EXTERNAL

ST62XX

CLOCK SOURCE

VOSCINL

VOSCINH

90%

10%

Not connected

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