EOL - PC/104 9-Channel 8-bit Pulse-width Modulator, DIO, and Timer
Product phased out. Please call systerra for replacement options.
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The DM6816 has nine 8-bit pulse width modulator circuits. The PWM function is divided into three blocks with each having three PWMs and four digital outputs. Each block consists of an 8-bit counter that is driven by either an on-board 8 MHz clock, the 8 MHz clock divided by a 16-bit counter/timer or an external clock. There are three 8-bit PWM registers. The counter output is
compared to each register and the PWM outputs are high if the count is less than the register and low if the count is greater than the register. Four buffered digital output lines available for control functions such as direction.
An 8254 programmable interval timer provides three 16-bit, 8 MHz timer/counters to support a wide range of user timing and counting functions.
Features
- PC/104 form factor with stackable ISA bus
- Pulse-Width-Modulator (PWM) Outputs
9 independent PWM channels
8-bit resolution
Synchronized to common 8MHz xtal oscillator
Each group of three outputs can be driven by either:
- 8MHz oscillator (gives fixed 32250 Hz frequency)
- 8MHz oscillator divided by timer/counter (gives 0.5 Hz to 15625 Hz)
Each channel can be independently enabled or disabled
- Digital Outputs
- 9 output lines
- Buffered TTL-compatible (-8mA source, +8mA sink)
- Individual 10k pull-up/down resistors
- Bus interfaces
- AT-bus interface on DM6816
- Jumper-selectable hardware interrupt 6814:
IRQ 2/9, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15
- Timer/counters
- Three 16-bit timer/counters
- On-board 8 MHz clock
- One timer/counter can provide divided clock for PWM channels
- Mating Connectors
- Two Standard 50-pin 0.1" DIL headers
Software
- Includes software packages for the following Operating Systems:
- DOS
- Windows 98, NT4.0, 2000, XP/XPe
- Linux 2.4.x and 2.6.x
- Source code provided for easy porting to other platforms, including RTOSes
- Data acquisition toolkits such as LabVIEW and MATLAB may be used with the Windows drivers
- Example programs with source code provide a starting point for developing custom applications
Physical Attributes
- Dimensions
- Length (L): 3.775 inches (95.89 mm)
- Width (W): 3.550 inches (90.17 mm)
- Stand-off Height: 0.600 inches (15.24 mm)
- Weight: Approximately 0.22 lbs. (0.10 Kg)
- Standard Operating Temperature, 90% humidity non-condensing: -40...+85°C
- Storage Temperature: -55...+125°C
- MTBF: 4,957,167 hours
- Power Requirements: 1.19 W @ 5 VDC typical
Also available in a stackable, rugged IDAN enclosure
Ordering Options
| Manuf. Part No | | Part Description |
| DM6816HR | | PWM Output AT dataModule® |
Accessories
| Manuf. Part No | | Part Description |
| XT50 | | 3 foot, 50-pin, twisted-pair cable |
| TB50 | | 50-pin screw terminal board |
| XB50 | | 50-pin screw terminal board with prototyping area |
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