ST92T163R4D0 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST92T163R4D0

8/16-BIT FULL SPEED USB MCU FOR COMPOSITE DEVICES WITH 16 ENDPOINTS, 20K ROM, 2K RAM, I2C, SCI, & MFT

STMicroelectronics 

ST92163 - I/O PORTS

INPUT/OUTPUT BIT CONFIGURATION (Cont’d)

Figure 56. Basic Structure of an I/O Port Pin

I/O PIN

PUSH-PULL

TRIS TAT E

OPEN DRAIN

WEAK PULL-UP

FROM

PERIPHERAL

OUTPUT

OUTPUT SLAVE LATCH

ALTERNATE

FU NCTIO N

INPUT

OUTPUT

BIDIRE CTIONA L

OUTPUT

OUTPUT MASTER LATCH

TTL / CMOS

(or Schmitt Trigger)

TO PERIPHERAL

INPUTS AND

INTERRUPTS

INPUT

BIDIRECTIONAL

ALTERNATE

FUNCTION

INPUT LATCH

Figure 57. Input Configuration

I/O PIN

INTERNAL DATA BUS

Figure 58. Output Configuration

I/O PIN

TRISTATE

OUTPUT SLAVE LATCH

TTL / CMOS

(or Schmitt Trigger)

TO PERIPHERAL

INPUTS AND

INTERRUPTS

OPEN DRAIN

PUSH-PULL

OUTPUT SLAVE LATCH

TTL

(or Schmitt Trigger)

TO PERIPHERAL

INPUTS AND

INTERRUPTS

OUTPUT MASTER LATCH

INPUT LATCH

INTERNAL DATA BUS

n

n

OUTPUT MASTER LATCH

INPUT LATCH

INTERNAL DATA BUS

n

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