HD74ALVCH162827 Datasheet, PDF (8/10 Pages) Hitachi Semiconductor – 20-bit Buffers / Drivers with 3-state Outputs

HD74ALVCH162827
Waveforms – 1
Input
tr
10 %
90 %
V_ref
t_PLH
tf
90 %
V_ref
10 %
t_PHL
Output
V_ref
V_ref
V_IH
GND
V_OH
V_OL
Waveforms – 2
tf
Output
Control
90 %
V_ref
10 %
t_ZL
Waveform - A
V_ref
t_ZH
Waveform - B
V_ref
tr
10 %
90 %
V_ref
t_LZ
t_HZ
V_OL + 0.3 V
V_OH – 0.3 V
V_IH
GND
≈V_OH1
V_OL
V_OH
≈V_OL1
Notes:
TEST
V_IH
V_ref
V_OH1
V_OL1
Vcc=2.5±0.2V
2.3 V
1.2 V
2.3 V
GND
Vcc=2.7V,
3.3±0.3V
2.7 V
1.5 V
3.0 V
GND
1. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10
MHz, Zo = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
2. Waveform–A is for an output with internal conditions such that the output is low except when
disabled by the output control.
3. Waveform–B is for an output with internal conditions such that the output is high except
when disabled by the output control.
4. The output are measured one at a time with one transition per measurement.
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