ST7263BEx datasheet(142/186 Pages) STMICROELECTRONICS

部件名	ST7263BEx

功能描述	Low speed USB 8-bit MCU family with up to 32 KB Flash/ROM, DFU capability, 8-bit ADC, WDG, timer, SCI and I²C

PDF	186 Pages

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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142 / 186 page

Electrical characteristics

ST7263Bxx

142/186

Doc ID 7516 Rev 8

13.4

Supply current characteristics

The following current consumption specified for the ST7 functional operating modes over

temperature range does not take into account the clock source current consumption. To get

the total device consumption, the two current values must be added (except for Halt mode

for which the clock is stopped).

Figure 55.

Typ. IDD in Run at fCPU = 4 and 8 MHz

Table 60.

Supply current characteristics

Symbol

Parameter

Conditions

Typ

Max

Unit

ΔI

DD(

ΔTa) Supply current variation vs. temperature Constant VDD and fCPU

-10(1)

IDD

CPU Run mode

I/Os in input mode

fCPU = 4 MHz

7.5

9(2)(1)

fCPU = 8 MHz

10.5

13(2)

CPU Wait mode

fCPU = 4 MHz

8(1)

fCPU = 8 MHz

8.5

11(2)

CPU Halt mode(3)

LVD disabled

40(1)

μA

USB Suspend mode(4)

LVD disabled

100

120

μA

LVD enabled

230

Not tested in production, guaranteed by characterization.

Oscillator and watchdog running. All others peripherals disabled.

USB Transceiver and ADC are powered down.

CPU in Halt mode. Current consumption of external pull-up (1.5Kohms to USBVCC) and pull-down (15Kohms to

VSSA) not included.

Idd Run (mA) at fcpu=4 and 8MHz

4.2

4.4

4.6

4.8

5.2

5.4

Vdd (V)

8MHz

4MHz

ai15593

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