22 34980A Service Guide
2 Specifications
34950A 64-channel Digital I/O Specifications and Characteristics (continued)
[1]
Configurable by bank
[2]
Lower current drive at lower voltages
[3]
Maximum threshold setting of 3V
Handshake lines
Vin 0 V – 5 V
[1]
Vout 1.66 V – 5 V
[1,2]
I out (max) 24 mA
[2]
Frequency (max) 10 MHz
Counter function characteristics
Maximum frequency 10 MHz (max) 50% duty
Vin 0 V – 5 V
[3]
t
rise /
t
fall
Input (min) 5 s
Totalizer function characteristics
Maximum count 2
32
– 1 (4,294,967,296)
Maximum input frequency 10 MHz
rising or falling edge programmable
Vin 0 V – 5 V
[3]
Gate input 0 V – 5 V
[3]
System clock generator characteristics
Frequency 20 MHz – 10 Hz configurable
divide-by-n 24-bits, programmable on/off
Vout 1.66 V – 5 V
[2]
Accuracy 100 ppm
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