XIO2000AI TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS], XIO2000AI Datasheet - Page 152

• Manufacturer Part Number: XIO2000AI
• Description: PCI Express to PCI Bus Translation Bridge
• Manufacturer: TAOS [TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS]

Electrical Characteristics
7.11 PCI Bus Parameter Measurement Information
142
† C LOAD includes the typical load-circuit distributed capacitance.
‡ V LOAD − V OL
NOTES: A. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by pulse generators having the
(see Note A )
Out-of-Phase
t en
t dis
t pd
(see Note A)
Input
SCPS155C
Data
PARAMETER
In-Phase
I OL
Timing
TIMING
Output
Output
Input
Input
C. For t PLZ and t PHZ , V OL and V OH are measured values.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
10% V DD
90% V DD
t PZH
t PZL
t PHZ
t PLZ
following characteristics: PRR = 1 MHz, Z O = 50 Ω, t r ≤ 6 ns, t f ≤ 6 ns.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
t r
t pd
t pd
t su
INPUT RISE AND FALL TIMES
PROPAGATION DELAY TIMES
= 50 Ω, where V OL = 0.6 V, I OL = 12 mA
LOAD CIRCUIT PARAMETERS
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
C LOAD †
50% V DD
30/50
30/50
30/50
(pF)
50% V DD
50% V DD
50% V DD
Figure 7−1. Load Circuit And Voltage Waveforms
50% V DD
(mA)
I OL
12
12
12
50% V DD
50% V DD
t h
t f
(mA)
I OH
−12
−12
−12
50% V DD
50% V DD
t pd
t pd
V DD
0 V
V DD
0 V
V DD
0 V
V OH
V OL
V OH
V OL
V LOAD
(V)
1.5
0
3
‡
(see Note B)
(see Note B)
Waveform 1
Waveform 2
(low-level
enabling)
High-Level
Low-Level
Control
Output
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
From Output
Under Test
Input
Input
t PZH
t PZL
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
Point
PULSE DURATION
Test
50% V DD
50% V DD
50% V DD
50% V DD
C LOAD
50% V DD
t PHZ
t PLZ
LOAD CIRCUIT
t w
April 2007 Revised October 2008
50% V DD
50% V DD
50% V DD
V OL + 0.3 V
V OH − 0.3 V
V DD
0 V
V DD
0 V
I OL
I OH
V DD
0 V
≈ 50% V DD
V OL
V OH
≈ 50% V DD
0 V
V DD
V LOAD