Meilhaus Electronic USB interface module PMD-1024HLS ME-RedLab® PMD-1024HLS Datenbogen
Produktcode
ME-RedLab® PMD-1024HLS
1
Specifications
Measurement Computing Corporation.
Typical for 25°C unless otherwise specified.
Specifications in italic text are guaranteed by design.
Digital input/output
Table 1. Digital I/O specifications
Digital input type
74ACT373
Digital output type
74FCT244
Number of I/O
24 (port A0 through port C7)
Configuration
2 banks of 8 and 2 banks of 4 or
3 banks of 8
3 banks of 8
Pull up/pull-down configuration
Internal 47K resistors may be user configured for
pull-up or pull-down via external connection of “Port
x Pull-up / Pull-down” to “USB +5 V” or “GND”.
Ports A, B, and C are independently configurable.
pull-up or pull-down via external connection of “Port
x Pull-up / Pull-down” to “USB +5 V” or “GND”.
Ports A, B, and C are independently configurable.
Input high voltage
2.0 V min, 5.5 V absolute max
Input low voltage
0.8 V max, –0.5 V absolute min
Output high voltage (IOH = -15 mA)
2.4 V min
Output low voltage (IOL=64 mA)
0.55 V max
Source current – (Note 1)
Self -powered hub
Externally-powered root port hub
Maximum = 15 mA per output
Source current – (Note 2)
Bus-powered hub
Battery-powered root port hub.
Per pin maximum = 40 mA/ [number of active
outputs].
15 mA max source current for any single output
outputs].
15 mA max source current for any single output
Sink current - (Note 3)
Current sink max: 440 mA/ [number of outputs].
64 mA max sink current for any single output.
64 mA max sink current for any single output.
Power up/reset state
Input mode (high impedance)