UPSD3422 datasheet(15/293 Pages) STMICROELECTRONICS

15 / 293 page

uPSD34xx

Pin descriptions

15/293

PSEN

N/A

PSEN Signal,

external bus

ALE

N/A

Address Latch

signal, external bus

RESET_IN

Active low reset

input

XTAL1

Oscillator input pin

for system clock

XTAL2

Oscillator output pin

for system clock

DEBUG

I/O

I/O to the MCU

Debug Unit

PA0

N/A

I/O

General I/O port pin

All Port A pins

support:

PLD Macro-

cell outputs, or

PLD inputs, or

Latched

Address Out

(A0-A7), or

Peripheral I/O

Mode

PA1

N/A

I/O

General I/O port pin

PA2

N/A

I/O

General I/O port pin

PA3

N/A

I/O

General I/O port pin

PA4

N/A

I/O

General I/O port pin

PA5

N/A

I/O

General I/O port pin

PA6

N/A

I/O

General I/O port pin

PA7

N/A

I/O

General I/O port pin

PB0

I/O

General I/O port pin

All Port B pins

support:

PLD Macro-

cell outputs, or

PLD inputs, or

Latched

Address Out

(A0-A7 or

A8-A15)

PB1

I/O

General I/O port pin

PB2

I/O

General I/O port pin

PB3

I/O

General I/O port pin

PB4

I/O

General I/O port pin

PB5

I/O

General I/O port pin

PB6

I/O

General I/O port pin

PB7

I/O

General I/O port pin

JTAGTMS

TMS

JTAG pin (TMS)

JTAGTCK

TCK

JTAG pin (TCK)

PC2

VSTBY

I/O

General I/O port pin

SRAM Standby

voltage input

(VSTBY)

PLD Macrocell

output, or PLD input

PC3

TSTAT

N/A

I/O

General I/O port pin

Optional JTAG

Status (TSTAT)

PLD, Macrocell

output, or PLD input

PC4

TERR

N/A

I/O

General I/O port pin

Optional JTAG

Status (TERR)

PLD, Macrocell

output, or PLD input

Table 2.

Pin definitions

Port Pin

Signal

Name

80-Pin

No.

52-Pin

No.(1)

In/Out

Function

Basic

Alternate 1

Alternate 2

UPSD3422 датащи(PDF) 15 Page - STMicroelectronics

UPSD3422 датащи(HTML) 15 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

датащи скачать

ссылки URL