FSTUD32450 Datasheet, PDF (11/13 Pages) Fairchild Semiconductor – Configurable 4-Bit to 40-Bit Bus Switch with -2V Undershoot Protection and Selectable Level Shifting

Undershoot Characteristic (Note 12)
Symbol
Parameter
Min
Typ
Max
Units
Conditions
V_OUTU
Output Voltage During Undershoot
2.5
V_OH − 0.3
V
S₂ = S₅ = 0V, Figure 1
TBD
TBD
V
S₂ = S₅ = V_CC
Note 12: This test is intended to characterize the device’s protective capabilities by maintaining output signal integrity during an input transient voltage
undershoot event.
FIGURE 1.
Device Test Conditions
Parameter
V_IN
R₁ = R₂
V_TRI
V_CC
Value
see Waveform
100K
11.0
5.5
Units
V
Ω
V
V
AC Loading and Waveforms
Transient
Input Voltage (V_IN) Waveform
Note: Input driven by 50Ω source terminated in 50Ω
Note: C_L includes load and stray capacitance
Note: Input Frequency = 1.0 MHz, t_W = 500 ns
FIGURE 2. AC Test Circuit
FIGURE 3. AC Waveforms
11
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