MPC148 - Micro/Sys MPC148 - High Density Digital I/O and Timer for...
- Part Number:
- MPC148
- Model Number:
- MPC148
- Make:
- MICRO SYS
- Lead Time:
- Available
- Qty In Stock:
- Available
Micro/Sys MPC148 - High Density Digital I/O and Timer for PC/104 Simple Type: Expansion Module
The MPC148 is a plug-on PC/104 board that adds high density digital I/O and timers to PC/104 systems. Three 82C55s provide bi-directional interfaces to and from A/D, D/A, and general system I/O. System reliability for this additional I/O is enhanced with grounds between each 82C55 signal. Consistent system start-up status is controlled with pull-down/pull-up resistors on all I/O lines. There are three counter/timers implemented with an 82C54. A matrix of software and jumper positions provides options for timer frequency, starting and stopping, and interrupt (IRQ) generation. An 8-position DIP switch and 8 indicator LEDS are on-board for development ease and monitoring system status during run time. Additionally, the switches can be used to set a system address in multi-board systems. The robustness of the MPC148 protects against power sequencing problems in PC/104 systems. This is accomplished with on-board current-limiting resistors that prevent overload currents.
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Features
- 53 user TTL-level I/O lines
- I/O direction selectable
- Individual grounds for all signals
- IRQs on I/O, timers, external
- PC/104 format, extended temp available
- Selectable pull-downs/ups on I/O with current-limiting resistors
- Switches/LEDs
Specifications
- Counter/Timer: 82C54 provides 3 16-bit timer/counters. Matrix of jumpers for IRQs, gating, internal/external clock, and cascading
- Digital I/O: 72 total in nine 8-bit groups, Outputs sink/source 2.5mA, Selectable I/Os can source IRQs, Jumper selectable 4.7k pull-downs/ups on I/O for initialization after reset, 470-ohm current-limiting resistors, Individual grounds for all signals
- Environmental: 0° - +70°C operating, -40° - +85°C operating, -ET version, -40° - +85°C storage, 5%-95% relative humidity, non-condensing
- External Connections: Two 50-pin headers for digital I/O. 26-pin header for timer, external-clock, external IRQ, miscellaneous I/O
- Mechanical: PC/104 standard, 3.55” (plus I/O region) x 3.775” x .6”
- PC/104 Interface: 8-bit PC/104 transfers, IRQ source from I/O, timers, external, Two interrupts jumperable to IRQ3,4,5,6,7,9, Jumperable to IRQ10,11,12,14,15 if MPCOPT16ST installed
- Power Requirements: +5v ±5% at 150mA max
- Switch/LEDs: 8-position switch, 8 LEDs from dedicated 82C55
Applications
- None Available
Aliases
- None Available
