104-DIO-48S datasheet(2/2 Pages) ADL | 48 lines of digital I/O with change of state detection

2 page

48 or 24 Lines of

PC/104 DIGITAL I/O WITH COS

104-DIO-48S &

104-DIO-24S

D i g i t a l I / O

Chip

82C55A (each supports 24 lines)

Number of I/O lines

48 or 24 TTL/CMOS compatible

Direction

Programmable as inputs or outputs in two groups

of 4 and 8 per 82C55A

Sink and source current

64mA and 32mA respectively

Pullup resistors

10K all input lines with optional pull-downs

Change of state detection

Port by port selectable on rising and falling edge

(COS)

Throughput

Up to 1 Megabyte per second

Power output

Re-settable fused +5V at 500mA per 50-pin connector

I n t e r r u p t s

Number of interrupts

Interrupt requests

IRQ's 3-7, 9-12, 14, 15

Interrupt sources

Counter/timer outputs, external interrupt input, or DIO

lines with change of state detection enabled by software

C o u n t e r / T i m e r s

Chip

Type 82C54

Counter/timers

3 x 16 bit

Maximum input frequency

10MHz

On-board time-base

1MHz

Signal type

TTL

Input voltage

Logic low: -0.5V min, 0.8V max;

Logic high: 2.0V min, 5.0V max

Output voltage

Logic low: 0.0V min, 0.4V max;

Logic high: 3.0V min, 5.0V max

G e n e r a l

Power required

+5V at 50mA typical, all outputs open

Operating temperature

0 to 70°C, optional -40 to +85°C, all versions

Storage temperature

-50 to 120°C

Operating humidity

5% to 95% RH, non-condensing

Specifications

Block Diagram & Pin Configuration

Ordering Guide

104-DIO-48S

48 lines of digital I/O with change of state detection

104-DIO-24S

24 lines of digital I/O with change-of-state detection

PC7

PC6

PC5

PC4

PC3

PC2

PC1

PC0

PB7

PB6

PB5

PB4

PB3

PB2

PB1

PB0

PA7

PA6

PA5

PA4

PA3

PA2

PA1

PA0

+5 VDC

Port C Hi

Port C Lo

Port B

Port A

GND

Clock 0 Input

Output 0

Gate 1 Input

Clock 2 Input

Output 2

Gate 0 Input

1MHz Clock (out)

Output 1

Gate 2 Input

Ground

CTR/Timer

I/O Header

Specifications subject to change without notice.

Advanced Digital Logic, Inc. 4411 Morena Blvd. Suite 101 San Diego, CA 92117

Email: sales@adlogic-pc104.com Website: www.adlogic-pc104.com

Tel: (858) 490-0597

Fax: (858) 490-0599

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