Acromag 948 Series, Руководство пользователя

Страница: 12 / 27

AVME948x USER'S MANUAL Digital I/O Board
___________________________________________________________________________________________
- 11 -
CALIBRATION PROCEDURE
Due to the digital nature of the AVME948x, no maintenance is
required during normal operation of the board.
REPLACEABLE PARTS
The Replaceable Parts List (Table 5.1) is provided as an aid to
the user in troubleshooting the board. Replacement parts and repair
services are available from Acromag. If repair is deemed necessary
for this circuitry, it is highly recommended that the board be returned
to Acromag for repair and recalibration. Information on ordering
replacement parts is shown below:
Table 5.1: AVME 948x Replacement Parts
REFERENCE
ACROMAG
PART NO.
DESCRIPTION
U1-8,16-23 1033-152 IC LM339
U9,10,13,14,40 1033-278 IC SN74LS257AND
U11,12 1033-256 IC SN74LS08ND
U15,28 1033-275 IC SN74LS273ND
U24,29 1033-273 IC SN74LS244ND
U25 5016-073 IC PA7024
U26 5016-074 IC PLS153N
U27 5016-075 IC PLS153N
U30 1033-415 IC LH5116-15
U31-38 1033-272 IC SN74LS240ND
U39 5016-076 IC PLS153N
U41 1033-621 IC N74F04N
U42 1033-623 IC N74F38N
U43 1033-658 IC 74LS164N
U44, (9480) 5016-078 IC TBP18S030N3
U44, (9481) 5016-079 IC TBP18S030N3
U45-52 1033-515 IC UCN5801ABU
U53 1033-048 IC 7445
U54 5016-082 IC PLS173N
U55 1033-626 IC AM25LS2521PCB
U56 1033-283 IC SN74LS373ND
U57 5016-083 IC PLS173N
U58 5016-077 IC PLS153N
U59,60 1033-627 IC SN74LS645-1ND
U61 5016-084 IC PAL22V10
6.0 SPECIFICATIONS
The following specifications apply at 25
°
C ambient temperature
and nominal power supply values, unless otherwise noted.
AMBIENT TEMPERATURE RANGES
Operating Temperature..............
0 to +70
°
C
Storage Temperature................. -25 to +85
°
C
PHYSICAL DIMENSIONS
Length........................................ 233mm
Width......................................... 160mm
Board Thickness........................ 1.6mm
Maximum Component Height..... 13.9mm
CONNECTORS
P1, P2........................................ IEC Type 603-2-C096MX-
XXX or equivalent.
P3, P4........................................ 50-Pin Header Connector,
Right Angle Amp 1-499919-0
or equivalent.
POWER REQUIREMENTS
+5 Volts DC.............................. 4.875 to 5.25V DC at 1.6A,
Typical (Board Logic only).
Does not include additional
current for output loads.
VMEbus Loading Current Input LOW Input HIGH
AM2, AS*, IACK* -0.6 mA 20 uA
A15 - A10 -0.4 mA 20 uA
AM5 - AM3, AM1, AM0,
LWORD*, A9 - A6, IACKIN*
-0.25 mA 25 uA
A5 - A1, DS1*, DS0*, WRITE* -0.2 mA 20 uA
D15 - D0 -0.1 mA 20 uA
SYSRESET* -100 uA 40 uA
VMEbus Drive Current Output LOW Output HIGH
IRQ7* - IRQ1* 80mA 250uA
DTACK*, BERR*, SYSFAIL* 64mA -3.0mA
D15-D0 48mA -15mA
IACKOUT* 24mA -3.2mA
Typical VMEbus Access Time
1
< 590nS
1
typical
Note 1: Measured from the falling edge of DSx*, to the falling edge
of DTACK*, during a normal data transfer cycle.
MAXIMUM INPUT FREQUENCY
Minimum positive pulse width.... 1.4 uS
Minimum negative pulse width... 2.0 uS
Maximum input frequency
(w/ minimum pulse widths)........
295 KHz
Maximum input frequency
(with 50% duty cycle).................
250 KHz
DIGITAL INPUT/OUTPUT NON-ISOLATED
Input Voltage Range.................. 0.0 to 30V DC
Input Threshold (L to H)............. 2.2V DC Nominal (Adjustable)
Input Threshold (H to L)............. 1.0V DC Nominal (Adjustable)
Input Hysteresis......................... 1.2 V DC Nominal
Input Current
(pull-up resistors removed)........
61uA at 30VDC
Points per Board........................ 64 I/O points (Each point can
be configured as an input or
output. Up to eight points can
interrupt the VME bus)
Output Type............................... Open collector with optional
pull-up resistor.
Output Voltage Range................ 0 to 30 V DC.
Output Current Sink................... 100mA Max.
Output Saturation Voltage.......... 1.1V Max @100mA., 0.9V Typ
Logic Compatibility..................... TTL, LSTTL, CMOS, & Others
Minimum interrupt point pulse
width to guarantee recognition...
>2uS
VME COMPLIANCE
Meets or exceeds all written VME Specifications per revision C.1
dated October, 1985, and IEC 821-1987
Data transfer bus........................
A16: D16/D08 (EO) DTB slave
Address modifier codes.............. 29H, 2DH
Interrupt request levels............... IRQ(1) - IRQ(7), eight
programmable vectors
Memory map............................... Short I/O space user or
supervisor & occupying 1Kbyte
consecutive locations, base
address jumper-configurable
within 64K short I/O space
Board Size.................................. Double Eurocard (NEXP)
(233mm X 160mm)
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com