UPSD3233 データシートの表示（PDF） - STMicroelectronics

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UPSD3233

Flash Programmable System Devices with 8032 Microcontroller Core and 64 Kbit SRAM

STMicroelectronics 

uPSD3234A, uPSD3234BV, uPSD3233B, uPSD3233BV

Port Pin

Signal

Name

Pin No. In/Out

Basic

JTAG TMS 20

I JTAG pin

JTAG TCK 16

I JTAG pin

PC2

VSTBY

15

I/O General I/O port pin

PC3

TSTAT

14

I/O General I/O port pin

PC4

TERR_

9

I/O General I/O port pin

JTAG TDI

7

I JTAG pin

JTAG TDO

6

O JTAG pin

PC7

5

I/O General I/O port pin

PD1

CLKIN

3

I/O General I/O port pin

PD2

Vcc

Vcc

GND

GND

GND

NC

NC

NC

USB+

1

I/O General I/O port pin

12

50

13

29

69

10

11

17

71

Function

Alternate

1. PLD Macro-cell outputs

2. PLD inputs

3. SRAM stand by voltage in-

put (VSTBY)

4. SRAM battery-on indicator

(PC4)

5. JTAG pins are dedicated

pins

1. PLD I/O

2. Clock input to PLD and APD

1. PLD I/O

2. Chip select to PSD Module

52-PIN PACKAGE I/O PORT

The 52-pin package members of the uPSD323X

Devices have the same port pins as those of the

80-pin package except:

■ Port 0 (P0.0-P0.7, external address/data bus

AD0-AD7)

■ Port 2 (P2.0-P2.3, external address bus A8-

A11)

■ Port A (PA0-PA7)

■ Port D (PD2)

■ Bus control signal (RD,WR,PSEN,ALE)

Pin 5 requires a pull-up resistor (2kΩ for 3V

devices, 7.5kΩ for 5V devices) for all devices,

with or without USB function.

12/170

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