ST7260 datasheet(88/117 Pages) STMICROELECTRONICS

部件名	ST7260

功能描述	LOW SPEED USB 8-BIT MCU FAMILY WITH UP TO 8K FLASH/ROM AND SERIAL COMMUNICATION INTERFACE (SCI)

PDF	117 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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ST7260

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13.3 OPERATING CONDITIONS

13.3.1 General Operating Conditions

Figure 42. fCPU Maximum Operating Frequency Versus VDD Supply Voltage

13.3.2 Operating Conditions with Low Voltage Detector (LVD)

Subject to general operating conditions for VDD, fCPU, and TA. Refer to Figure 9 on page 20.

Notes:

1. The VDD rise time rate condition is needed to insure a correct device power-on and LVD reset. Not tested in production.

2. Guaranteed by characterization - not tested in production

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VDD

Operating Supply Voltage

fCPU = 8 MHz

5.5

VDDA

Analog supply voltage

VDD

VSSA

Analog supply voltage

VSS

fCPU

Operating frequency

fOSC = 24 MHz

MHz

fOSC = 12 MHz

Ambient temperature range

070

°C

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VIT+

Low Voltage Reset Threshold (VDD rising) VDD Max. Variation 50V/ms

3.4

3.7

4.0

VIT-

Low Voltage Reset Threshold (VDD falling) VDD Max. Variation 50V/ms

3.2

3.5

3.8

Vhyst

Hysteresis (VIT+ - VIT-)

100

175

220

VtPOR

VDD rise time rate

0.5

V/ms

fCPU [MHz]

SUPPLY VOLTAGE [V]

2.5

3.0

3.5

4.5

5.5

FUNCTIONALITY

GUARANTEED

FROM 4 TO 5.5 V

NOT GUARANTEED

IN THIS AREA

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