PMD-1208LS User's Guide - LArTPC DocDB

PMD-1208LS User's GuideSpecificationsDigital input/outputDigital type82C55Number of I/O16 (Port A0 through A7, Port B0 through B7Configuration 2 banks of 8Pull up/pull-downconfigurationInput high voltageInput low voltageOutput high voltage(IOH = -2.5mA)Output low voltage(IOL = 2.5mA)All pins pulled up to Vs via 47K resistors (default). Positions available for pull downto ground. Hardware selectable via zero ohm resistors as a factory option.2.0V min, 5.5V absolute max0.8V max, –0.5V absolute min3.0V min0.4V maxExternal triggerParameter Conditions SpecificationTrigger Source (Note 4) External Digital TRIG_INTrigger mode Software selectable Level Sensitive: user configurable for TTL level high orlow input.Trigger latency Burst 25µs min, 50µs maxTrigger pulse width Burst 40µs minInput high voltage3.0V min, 15.0V absolute maxInput low voltage0.8V maxInput leakage current±1.0µANote 4:TRIG_IN is protected with a 1.5KOhm series resistor.Counter sectionCounter typeEvent counterNumber of Channels 1Input sourceCTR screw terminalResolution32 bitsSchmidt Trigger Hysteresis20mV to 100mVInput Leakage Current±1µAMaximum input frequency1 MHzHigh pulse width500ns minLow pulse width500ns minInput low voltage0V min, 1.0V maxInput high voltage4.0V min, 15.0V maxNon-volatile memoryMemory sizeMemory configuration8192 bytesAddress Range Access Description0x0000 – 0x17FF Read/Write A/D Data (4K samples)0x1800 – 0x1EFF Read/Write User data area0x1F00 – 0x1FEF Read/Write Calibration Data0x1FF0 – 0x1FFF Read/Write System Data4-3