ST72260G1B6/XXX View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72260G1B6/XXX

8-BIT MCU WITH FLASH OR ROM MEMORY, ADC, TWO 16-BIT TIMERS, I2C, SPI, SCI INTERFACES

STMicroelectronics 

ST72260G, ST72262G, ST72264G

I/O PORTS (Cont’d)

9.7 DEVICE-SPECIFIC I/O PORT CONFIGURATION

The I/O port register configurations are summa- True Open Drain Interrupt Ports

rised as follows.

PA6, PA4 (without pull-up)

Interrupt Ports

PA7, PA5, PA3:0, PB7:0, PC5:0 (with pull-up)

MODE

DDR OR

floating input

0

0

MODE

DDR OR

floating interrupt input

0

1

floating input

0

0

open drain (high sink ports)

1

X

pull-up interrupt input

0

1

open drain output

1

0

push-pull output

1

1

Table 9. Port Configuration

Port

Pin Name

Port A

Port B

Port C

PA7

PA6

PA5

PA4

PA3:0

PB7:0

PC5:0

Input (DDR = 0)

OR = 0

floating

floating

floating

floating

floating

floating

floating

OR = 1

pull-up interrupt

floating interrupt

pull-up interrupt

floating interrupt

pull-up interrupt

pull-up interrupt

pull-up interrupt

Output (DDR = 1)

OR = 0

OR = 1

open drain

push-pull

true open-drain

open drain

push-pull

true open-drain

open drain

push-pull

open drain

push-pull

open drain

push-pull

High-Sink

Yes

No

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