PTN3500 데이터 시트보기 (PDF) - Philips Electronics
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PTN3500 Datasheet PDF : 15 Pages
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Philips Semiconductors
Maintenance and control device
Product specification
PTN3500
FEATURES
• I2C to parallel port expander
• Internal 256x8 E2PROM
• Self timed write cycle (5 ms typ.)
• Four byte page write operation
• Controlled pull-up on address lines
• Low voltage VCC range of +2.5 V to +3.6 V
• 5 V – tolerant I/Os
• Low standby current (< 60 µA )
• Power on Reset
• Supports Live Insertion
• Compatible with SMBus specification version 1.1
• High E2PROM endurance and data retention
• Available in SO16 and TSSOP16 package options
PIN CONFIGURATION
A0 1
A1 2
A2 3
P0 4
P1 5
P2 6
P3 7
VSS
8
PTN3500
16 VDD
15 SDA
14 SCL
13 WC
12 P7
11 P6
10 P5
9 P4
Figure 1.
SW00541
DESCRIPTION
The PTN3500 is a general purpose maintenance and control device.
It features an on-board E2PROM that can be used to store error
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
share the common two wire I2C software protocol serial data bus.
The PTN3500 supports live insertion to facilitate usage in removable
cards on backplane systems.
PIN DESCRIPTION
PIN NUMBER SYMBOL
1,2,3
A0:2
4,5,6,7
P0:3
8
9,10,11,12
VSS
P4:7
13
WC
14
SCL
15
SDA
16
VDD
NAME AND FUNCTION
Address Lines
Quasi–bidirectional i/o pins
Supply Ground
Quasi–bidirectional i/o pins
Write Control Pin. Should be
tied LOW.
I2C Serial Clock
I2C Serial Data
Supply Voltage
ORDERING INFORMATION
Type number
Package
Name
PTN3500D
SO16
PTN3500DH
TSSOP16
Description
Plastic small-outline package; 16 leads; body width 7.5 mm
Plastic thin shrink small-outline package; 16 leads; body width 4.4 mm
Version
SOT162-1
SOT403-1
FUNCTIONAL DIAGRAM
SCL
SDA
A2:0
I2C
Control
8-Bit
I/O
Port
P7:0
WC
E2PROM
256 x 8
Figure 2.
2001 Jan 17
2
SW00562
853-2226 25435
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