PCI Boards NEW! APC424 Digital I/O (Differential & TTL) and Counter/Timers The APC424 provides 24 differential input/outputs, 16 TTL input/output channels, and four 16-bit multi- function counter/timers. This module saves money and PCI slots by combining differential I/O, TTL I/O, and counter/timer functions on one card. The 16 TTL input/output channels can be programmed Counter clock frequencies: Selectable for 20MHz, as inputs or as outputs on an individual channel basis. Specifications 10MHz, 5MHz, 2.5MHz, 1.25MHz or external up to The 24 differential input/output channels are pro- Differential Digital I/O 8MHz. grammed as inputs or outputs on an 4-channel port I/O channel configuration: 24 bidirectional differential Minimum I/P event: 100nS (debounce disabled). basis. All input channels can be enabled for change of signals. Direction is controlled as a 4-channel group. Minimum pulse measurement: 100nS (debounce disabled). state, low, or high level transition interrupts. Differential driver output voltage with 50 ohm load: Minimum period measurement: 200nS (debounce disabled). 2V minimum, 5V maximum. Four 16-bit multifunction counters/timers can be Minimum gate/trigger pulse: 100nS (debounce disabled). Common mode output voltage: 3V maximum: configured for pulse width modulated output, watchdog Minimum input resistance: 12K ohms. PCI Bus Compliance timer, event counter, frequency measurement, pulse Termination resistors: 120 ohm termination resistor This device meets or exceeds all written PCI local bus width measurement, period measurement, or one shot networks are installed in sockets. specifications per rev. 2.2 dated December 1998. pulse output. The four 16-bit counters can also be System base address: This board operates in memory space. It configured into two 32-bit counter/timers. TTL Digital I/O consumes 4K of memory space. I/O channel configuration: 16 bidirectional TTL Data transfer bus: Slave with 32, 16, and 8-bit data transfer transceivers with direction controlled independently Features operation. (shared as counter/timer control signals). Interrupts (INTA#): Interrupts requested on Interrupt A. Digital I/O Reset/power-up condition: All channels default to input. ■40 digital input/output channels: Digital Input Environmental - 24 differential input/outputs Input voltage range: 0 to 5V DC. Operating temperature: 0 to 70°C (APC424) or - 16 TTL input/output channels -40 to 85°C (APC424E) Input signal threshold, low to high: 3.5V typical. Storage temperature: -55 to 125°C. ■Programmable change of state/level interrupts Input signal threshold, high to low: 1.5V typical. Relative humidity: 5 to 95% non-condensing. Digital Output ■Input signal filtering debounce logic MTBF: Consult factory. Output voltage range: 0 to 5V DC. Power: 216mA at +5V, typical. Output ON current range: -32 to 32mA. Counter/Timer ■Four 16-bit or two 32-bit counter/timer channels Output pullups: 4.7K ohm socketed resistors. Ordering Information (control lines shared with 16 TTL I/O channels) Input Interrupts PCI Boards ■Six operating modes: 40 channels of interrupts are available for high-to-low, APC424: Digital I/O and counter/timer module low-to-high, or any change-of-state event type. - Pulse width modulation APC424E: Same as APC424 plus extended temp.range Debounce: Selectable for each channel. User-selectable - Watchdog timer (5.6µS, 50.4µS, 408.8µS, or 3.276mS). - Event counter Software (see Page 81) ® - Frequency measurement PMCSW-API-VXW: VxWorks software support package Counter/Timers ® - Pulse width or period measurement PCISW-API-QNX: QNX software support package Counter/timer configuration: Four 16-bit counters can be ® - One-shot and repetitive one-shot configured into two 32-bit counters. PCISW-API-WIN: Windows DLL software support Counter input: Each counter has an IN ,IN , and IN port. A B C■TTL-compatible thresholds Accessories (see Page 87) These TTL input signals control start/stop, reload, event 5025-288: Termination panel, SCSI-3 connector, input, external clock, trigger, and up/down operations. ■Power-up and system reset are failsafe 68 screw terminals Counter output: Each counter has one output signal. The TTL 5028-432: Cable, shielded, SCSI-3 connector both ends output is used for waveform output, watchdog active indi- Approvals cator, or 1.6µS pulse upon counter function completion. ■CE marked, FCC Part 15, Class B Programmable as active high or low. Acromag, Inc.  PO Box 437, Wixom, MI 48393  Phone: 248-624-1541  Fax: 248-624-9234  solutions@acromag.com  www.acromag.com 66 PCI Boards