ST7FLITE25F1B6 データシートの表示（PDF） - STMicroelectronics

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ST7FLITE25F1B6

8-bit microcontroller with single voltage Flash memory, data EEPROM, ADC, Timers, SPI

STMicroelectronics 

Pin description

ST7LITE20F2 ST7LITE25F2 ST7LITE29F2

Table 2.

Pin

No.

Device pin description (continued)

Pin name

Level

Port / Control

Input

Output

OD PP

Main

function

(after

reset)

Alternate function

19 14 OSC2

O − − − − − − − − Resonator oscillator inverter output

20 15 OSC1/CLKIN

I

−

−

−−−−

−

−

Resonator oscillator inverter input or external

clock input

1. No negative current injection allowed on this pin. For details (refer toTable 58: Current characteristics).

2. During normal operation this pin must be pulled- up, internally or externally (external pull-up of 10k mandatory in noisy

environment). This is to avoid entering ICC mode unexpectedly during a reset. In the application, even if the pin is

configured as output, any reset will put it back in input pull-up.

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Doc ID 8349 Rev 5

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