85RF Fluke Electronics, 85RF Datasheet - Page 89

• Manufacturer Part Number: 85RF
• Description: PROBE HIGH FREQ 500MHZ
• Manufacturer: Fluke Electronics
• Type: High Frequencyr

Specifications of 85RF

• Impedance: 10M Ohm
• Voltage - Max: 30VRMS, 200VDC
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Ratings: -
• Current Rating: -
• Color: -
• Termination: -
• Wire Insulation Material: -
• Cable Length: -
• Other names: 532457

Pin No.
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Mnemonic
Table 4-8. U3 (MAC) Pin Descriptions (cont)
OREF-
OREF+
BFH
BFL
AZ
INT
BTI
VIA
CV
VDD
VID
VDG
AD0
AD1
AD2
AD3
WR/
ALE/
RD/
IN10
IN11
IN12
IN13
IN20
IN21
IN22
CLKO
XTALI
XTALO
Reference input to a/d converter during
autozero period for resistance functions.
Output of the a/d buffer circuit.
Input for AZ capacitor.
Input for INTEG capacitor.
Battery test input.
+5.2V supply feedback (nominally 1V)
Gate drive for JFET. Series pass element
+5.2V supply.
Reference voltage for the U3 and U5 digital
power supply.
Output of the U3 and U5 digital power supply.
Four-bit parallel data bus between U3 and U5.
During the first part of a data transfer operation
they carry the address of the register being
read or written to. During the remainder of the
operation they carry data.
Register write strobe.
Address Latch Enable.
Register read strobe.
SW5
SW6
SW7
SW8
SW1
SW2
SW3
40 kHz clock which drives the U5 clock input
(crystal frequency divided by 80).
Connections to the crystal oscillator.
Inputs to U5 indicating the switch
positions.
Description
Troubleshooting
Maintenance
4-27
4