HD293486 Datasheet, PDF (5/6 Pages) Hitachi Semiconductor – Quadruple Dfferential Line Receivers With 3 State Outputs

HD293486
2. tHZ, tZH, tLZ, tZL
Test circuit
–1.5 V
1.5 V
SW 1
HD293486
Output
2 KΩ ^SW2
5V
Pulse
Generator
Input
CL =
15 pF
5 KΩ
SW3
Notes: 1. The pulse generator has following characteristics:
PRR = 1 MHZ, 50 % duty cycle, tr ≤ 6 ns, tf ≤ 6 ns, Zout = 50 Ω
2. CL includes probe and jig capacitance.
3. All diodes are 1S2074 H
Waveforms
(1) tHZ
Input
1.5 V
Output
tHZ
0.5 V
3V
SW1 to 1.5 V
0V
SW2 CLOSE
VOH
SW3 CLOSE
≈1.3 V
(2) tZH
Input
Output
1.5 V
tHZ
1.5 V
3V
0V
VOH
≈1.3 V
SW1 to 1.5 V
SW2 OPEN
SW3 CLOSE
5