ST72621L4M1(2002) View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72621L4M1
(Rev.:2002)

LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS, FLASH OR ROM MEMORY, LVD, WDG, 10-BIT ADC, 2 TIMERS, SCI, SPI

STMicroelectronics 

ST7262

I/O PORTS (Cont’d)

9.2.7 Port C

Table 11. Port C Description

PORT C

PC0

PC1

PC2

Input*

floating

floating

with pull-up

I/O

Output

true open drain

true open drain

push-pull

PC3

with pull-up

push-pull

PC4

with pull-up

push-pull

PC5

PC6

PC7

*Reset State

with pull-up

with pull-up

with pull-up

push-pull

push-pull

push-pull

Alternate Function

Signal

Condition

IT9 Schmitt triggered input

SCK

IT10 Schmitt triggered input

SS

IT11 Schmitt triggered input

MISO

IT12 Schmitt triggered input

MOSI

IT9E = 1 (ITRFRE2)

SPI enabled

IT10E = 1 (ITRFRE2)

SPI enabled

IT11E = 1 (ITRFRE2)

SPI enabled

IT12E = 1 (ITRFRE2)

SPI enabled

Figure 28. Port C[1:0] Configuration

ALTERNATE ENABLE

ALTERNATE 1

OUTPUT

0

DR

LATCH

DDR

LATCH

PAD

DDR SEL

DR SEL

1

0

N-BUFFER

ALTERNATE ENABLE

VSS

CMOS SCHMITT TRIGGER

DIODES

35/133

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