Philips Semiconductors

Product specification

PTN3500

Maintenance and control device

2

2001 Jan 17

853-2226 25435

FEATURES

DESCRIPTION

The PTN3500 is a general purpose maintenance and control device.

codes or board manufacturing data for read–back by application

software for diagnostic purposes.

The eight quasi bidirectional data pins can be independently

assigned as inputs or outputs to monitor board level status or

activate indicator devices such as LEDs.

The PTN3500 has three address pins allowing up to 8 devices to

The PTN3500 supports live insertion to facilitate usage in removable

cards on backplane systems.

PIN CONFIGURATION

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

A0

A1

A2

P0

P1

P2

P3

SDA

SCL

P7

P6

P5

P4

WC

SW00541

PTN3500

Figure 1.

PIN DESCRIPTION

PIN NUMBER

SYMBOL

NAME AND FUNCTION

1,2,3

A0:2

Address Lines

4,5,6,7

P0:3

Quasi–bidirectional i/o pins

8

Supply Ground

9,10,11,12

P4:7

Quasi–bidirectional i/o pins

13

WC

Write Control Pin. Should be

tied LOW.

14

SCL

15

SDA

16

Supply Voltage

ORDERING INFORMATION

Type n mber

Package

Type number

Name

Description

Version

PTN3500D

SO16

Plastic small-outline package; 16 leads; body width 7.5 mm

SOT162-1

PTN3500DH

TSSOP16

Plastic thin shrink small-outline package; 16 leads; body width 4.4 mm

SOT403-1

FUNCTIONAL DIAGRAM

WC

SCL

SDA

A2:0

Control

E2PROM

256 x 8

8-Bit

I/O

Port

P7:0

SW00562

Figure 2.