AcPC483: Counter/Timer with Quadrature
Please sign in or register to see model options and to add products to your cart.
Product short description:
- Four 16-bit counters - TTL, and four 32-bit counters - RS422
- Event counter
- Frequency measurement
- Quadrature position measurement
- Pulse-width or periodic rate monitor
- Watchdog timer with isolated relay output
Not recommended for new designs. Limited availability - please contact sales department.
Several models with a variety of configurations provide up to ten counter/timer channels for counting events, generating waveform control signals, measuring pulse-widths, periodic rates, or quadrature position and monitoring operations.
Support for internal or external triggering simplifies the synchronization of operations to specific events. Counter functions can use internally generated clocks or an externally supplied clock.
- Most configuration is handled by a single register which minimizes programming.
- Pullups are socketed for easy adjustment.
Specifications
Counter/Timers
Counter/timer configuration: AcPC483: Four 16-bit counters – TTL, Four 32-bit counters – RS422 – Other I/O mixes can be made available as specials.
Clock frequency: 20MHz.
Field I/O: Front panel SCSI-3 connector.
Speed (with 20MHz internal clock):
Maximum output pulse/square wave freq.: 200nS.
Minimum event pulse width: 100nS.
Minimum pulse width measurement: 100nS.
Minimum period measurement: 200nS.
Mode accuracy (with external clocking):
Waveform generation: Period is ±125nS.
Watchdog: Timeout occurs within ±1 clock cycle.
Pulse/period measurement: ±1 clock cycle.
Internal clocks: Programmable 1.25, 2.5, 5, 10 or 20MHz via the counter control register.
External clocks: Supported on a per-counter basis via clock line. Maximum frequency 8MHz.
Interrupts: Supported for watchdog timer time-out, event count complete, pulse width or periodic rate measurement complete, pulse wave complete (one-shot mode), successive waveform generation (continuous).
Triggering/gate: Programmable via register write or external trigger. Minimum pulse width 100nS. Line may be used for gating of counter.
Counter trigger: Interface for triggering counter functions. Input level is TTL or RS422 differential digital.
Counter input: Interface for events and pulse/period measurements. Also triggers load of watchdog timer register. Level is TTL or RS422 differential digital.
TTL compatibility: VIH = 2.0V and VIL = 0.8V. Inputs are buffered and include 4.7K ohm pull-ups to 5V.
Counter output: Level is TTL or RS422 differential digital.
Digital I/O
I/O channel configuration: 16 bi-directional TTL transceivers.Direction controlled as 16 independent channels.
CompactPCI bus Compliance
Meets PCI spec. V2.2 and PICMG 2.0, R3.0.
Data transfer bus: Slave with 32-bit, 16-bit, and 8-bit data transfer operation.
Interrupts (INTA#): Interrupt A is used to request an interrupt.
Plug-and-Play: The system maps the base address into the PCI bus 32-bit memory space.
Environmental
Operating temperature: 0 to 70°C or -40 to 85°C (E versions).
Storage temperature: -55 to 125°C.
Relative humidity: 5 to 95% non-condensing.
Power: 320mA at 5V, typical.
MTBF: Hours at 25°C, MIL-HDBK-217F, notice 2 1,727,707
- Four 16-bit TTL counter/timers and four 32-bit RS422 counter/timers
- Two 16-bit counters can be combined to create one 32-bit counter
- 16 bi-directional digital I/O
- 20MHz clock time base
- Counter/timer functions:
- Quadrature position measurement
- Pulse width modulation
- Watchdog timer
- Event counting
- Frequency measurement
- Period/pulse-width measurement
- One-shot/repetitive
- 0 to 70°C or -40 to 85°C (E versions)
Specs & Catalogs
Manuals
AcPC483 User Manual (Log in to download the file)
Catalogs
Drawings & Diagrams
-
502x Cable Series
- Communication Signal Cables
- Wide assortment of ribbon cables
$40 – $705Select options -
PMCSW-API-VXW: VxWorks Libraries
- VxWorks function libraries for XMC, PMC, PCI and CompactPCI products (except IP carriers)
- Supports any CPU target with quick modification.
- API easily convertible for any operating system
$995Select options -
Termination Products
- DIN rail-mount panels
- 50 screw terminals on 50-pin connector termination panels
- 50 screw terminals on SCSI-2 connector termination panels
- 68 screw terminals on SCSI-3 connector termination panels
$170 – $235Select options
Additional information
Weight | N/A |
---|---|
Dimensions | N/A |
Part Number | AcPC483: 16-bit counters – TTL, and Four 32-bit counters – RS422., AcPC483E: 16-bit counters – TTL, and Four 32-bit counters – RS422, Extended temperature range. |
-
Description
Several models with a variety of configurations provide up to ten counter/timer channels for counting events, generating waveform control signals, measuring pulse-widths, periodic rates, or quadrature position and monitoring operations.
Support for internal or external triggering simplifies the synchronization of operations to specific events. Counter functions can use internally generated clocks or an externally supplied clock.
- Most configuration is handled by a single register which minimizes programming.
- Pullups are socketed for easy adjustment.
Specifications
Counter/Timers
Counter/timer configuration: AcPC483: Four 16-bit counters – TTL, Four 32-bit counters – RS422 – Other I/O mixes can be made available as specials.
Clock frequency: 20MHz.
Field I/O: Front panel SCSI-3 connector.
Speed (with 20MHz internal clock):
Maximum output pulse/square wave freq.: 200nS.
Minimum event pulse width: 100nS.
Minimum pulse width measurement: 100nS.
Minimum period measurement: 200nS.
Mode accuracy (with external clocking):
Waveform generation: Period is ±125nS.
Watchdog: Timeout occurs within ±1 clock cycle.
Pulse/period measurement: ±1 clock cycle.
Internal clocks: Programmable 1.25, 2.5, 5, 10 or 20MHz via the counter control register.
External clocks: Supported on a per-counter basis via clock line. Maximum frequency 8MHz.
Interrupts: Supported for watchdog timer time-out, event count complete, pulse width or periodic rate measurement complete, pulse wave complete (one-shot mode), successive waveform generation (continuous).
Triggering/gate: Programmable via register write or external trigger. Minimum pulse width 100nS. Line may be used for gating of counter.
Counter trigger: Interface for triggering counter functions. Input level is TTL or RS422 differential digital.
Counter input: Interface for events and pulse/period measurements. Also triggers load of watchdog timer register. Level is TTL or RS422 differential digital.
TTL compatibility: VIH = 2.0V and VIL = 0.8V. Inputs are buffered and include 4.7K ohm pull-ups to 5V.
Counter output: Level is TTL or RS422 differential digital.Digital I/O
I/O channel configuration: 16 bi-directional TTL transceivers.Direction controlled as 16 independent channels.
CompactPCI bus Compliance
Meets PCI spec. V2.2 and PICMG 2.0, R3.0.
Data transfer bus: Slave with 32-bit, 16-bit, and 8-bit data transfer operation.
Interrupts (INTA#): Interrupt A is used to request an interrupt.
Plug-and-Play: The system maps the base address into the PCI bus 32-bit memory space.Environmental
Operating temperature: 0 to 70°C or -40 to 85°C (E versions).
Storage temperature: -55 to 125°C.
Relative humidity: 5 to 95% non-condensing.
Power: 320mA at 5V, typical.
MTBF: Hours at 25°C, MIL-HDBK-217F, notice 2 1,727,707 -
Features & Benefits
- Four 16-bit TTL counter/timers and four 32-bit RS422 counter/timers
- Two 16-bit counters can be combined to create one 32-bit counter
- 16 bi-directional digital I/O
- 20MHz clock time base
- Counter/timer functions:
- Quadrature position measurement
- Pulse width modulation
- Watchdog timer
- Event counting
- Frequency measurement
- Period/pulse-width measurement
- One-shot/repetitive
- 0 to 70°C or -40 to 85°C (E versions)
-
Specs & Data Sheets
Specs & Catalogs
Manuals
AcPC483 User Manual (Log in to download the file)
Catalogs
Drawings & Diagrams
-
Software
PCISW-API-LNX (Log in to download the file) -
Accessories
-
502x Cable Series
- Communication Signal Cables
- Wide assortment of ribbon cables
$40 – $705Select options -
PMCSW-API-VXW: VxWorks Libraries
- VxWorks function libraries for XMC, PMC, PCI and CompactPCI products (except IP carriers)
- Supports any CPU target with quick modification.
- API easily convertible for any operating system
$995Select options -
Termination Products
- DIN rail-mount panels
- 50 screw terminals on 50-pin connector termination panels
- 50 screw terminals on SCSI-2 connector termination panels
- 68 screw terminals on SCSI-3 connector termination panels
$170 – $235Select options
-
-
Additional information
Additional information
Weight N/A Dimensions N/A Part Number AcPC483: 16-bit counters – TTL, and Four 32-bit counters – RS422., AcPC483E: 16-bit counters – TTL, and Four 32-bit counters – RS422, Extended temperature range.
Please login to submit this form.