Table A-1. Jackrabbit Board Specifications
|
| Board Size |
3.50" × 2.50" × 0.94" (89 mm × 64 mm × 24 mm) |
| Humidity |
5% to 95%, noncondensing |
| Input Voltage and Current |
7.5 V to 25 V DC, 100 mA typical, 150 mA maximum, linear regulator |
| Configurable I/O |
44--28 independent
16 shared with onboard peripherals
3 additional shared with programming connector when programming/debugging |
| Analog Inputs |
One low-grade A/D input--input range 0 V to 3 V, 10-bit resolution, 8-bit accuracy, average acquisition time 150 ms (165 ms maximum) with 14.7 MHz clock |
| Analog Outputs |
Two filtered and buffered PWM outputs |
| Digital Outputs |
Four high-current, high-voltage outputs--3 sink up to 200 mA and 35 V standoff |
| Clock |
14.74 MHz |
| SRAM |
128K (supports 32K-512K) |
| Flash EPROM |
128K (supports 32K-512K) |
| Timers |
Five 8-bit timers, one 10-bit timer with two match registers, five timers are cascadable |
| Serial Ports |
Four serial ports--two RS-232 or one RS-232 (with CTS/RTS) and one RS-485 One 5 V CMOS-compatible line Two serial ports can be clocked |
| Serial Rate |
Up to 1.84 MHz |
| Watchdog/Supervisor |
Yes |
| Time/Date Clock |
Yes |
| Backup Battery |
Yes, 3 V lithium coin type, 950 mA-h, includes external battery holder |
