40MX and 42MX FPGA Families
Output Drive Characteristics for 5.0V PCI Signaling
MX PCI device I/O drivers were designed specifically for high-performance PCI systems. Figure 1-16 on page 1-21 shows
the typical output drive characteristics of the MX devices. MX output drivers are compliant with the PCI Local Bus
Specification.
Table 17 • DC Specification (5.0V PCI Signaling)1
PCI
MX
Symbol
VCCI
VIH
VIL
IIH
IIL
VOH
VOL
Parameter
Supply Voltage for I/Os
Input High Voltage
Input Low Voltage
Input High Leakage Current
Input Low Leakage Current
Output High Voltage
Output Low Voltage
Condition
VIN = 2.7V
VIN=0.5V
IOUT = –2 mA
IOUT = –6 mA
IOUT = 3 mA,
6 mA
Min.
4.75
2.0
–0.5
2.4
Max.
5.25
VCC + 0.5
0.8
70
–70
0.55
Min.
4.75
2.0
–0.3
—
—
3.84
—
Max.
5.252
VCCI + 0.3
0.8
10
–10
Units
V
V
V
µA
µA
V
0.33
V
CIN
Input Pin Capacitance
10
—
10
pF
CCLK
LPIN
CLK Pin Capacitance
Pin Inductance
5
12
—
10
pF
20
—
< 8 nH3
nH
Notes:
1. PCI Local Bus Specification, Version 2.1, Section 4.2.1.1.
2. Maximum rating for VCCI –0.5V to 7.0V.
3. Dependent upon the chosen package. PCI recommends QFP and BGA packaging to reduce pin inductance and capacitance.
Table 18 • AC Specifications (5.0V PCI Signaling)*
PCI
Symbol
ICL
Parameter
Low Clamp Current
Condition
–5 < VIN ≤ –1
Min.
–25 + (VIN +1)
/0.015
Slew (r)
Output Rise Slew Rate
0.4V to 2.4V load
1
Slew (f)
Output Fall Slew Rate
2.4V to 0.4V load
1
Note: *PCI Local Bus Specification, Version 2.1, Section 4.2.1.2.
Max.
5
5
MX
Min.
Max.
–60
–10
1.8
2.8
2.8
4.3
Units
mA
V/ns
V/ns
v6.0
1-19