
21
PC107A [Preliminary]
2137C–HIREL–03/04
Electrical
Characteristics
This section provides the AC and DC electrical specifications and thermal characteris-
tics for the PC107A.
Static Characteristics
DC Electrical Specification
Table 7 provides the DC electrical characteristics for the PC107A.
At recommended operating conditions (see Table 3 on page 12)
Notes:
1. These specifications are for the default driver strengths indicated in Table 8 on page 22.
2. See Figure 23 on page 35 for pins with internal pull-up resistors.
3. The minimum Input high voltage is not compliant with the
PCI Local Bus Specification
(Rev 2.1) which specifies 0.5*OV
DD
for
minimum input high voltage.
4. Leakage current is measured on input pins and on output pins in the high impedance state. The leakage current is mea-
sured for nominal OV
DD
/LV
DD
and V
DD
or both Ov
DD
/LV
DD
and V
DD
must vary in the same direction.
5. See Table 8 on page 22 for the typical drive capability of a specific signal pin based upon the type of output driver associ-
ated with that pin as listed in Table 1 on page 5.
6. Capacitance is periodically sampled rather than 100% tested.
Table 7.
DC Electrical Specifications
Characteristics
Conditions
(1)
Symbol
Value
Unit
Min
Max
Input High Voltage
(2)(3)
PCI only
V
IH
0.65*OV
DD
(3)
LV
DD
V
Input Low Voltage
PCI only
V
IL
–
0.3*OV
DD
V
Input High Voltage
(2)
All other pins (GV
DD
= 3.3V)
V
IH
2.0
–
V
Input High Voltage
(2)
All other pins (BV
DD
= 2.5V)
V
IH
1.7
–
V
Input Low Voltage
All inputs except PCI_SYNC_IN
V
IL
GND
0.8
V
PCI_SYNC_IN Input High Voltage
CV
IH
2.4
–
V
PCI_SYNC_IN Input Low Voltage
CV
IL
GND
0.4
V
Input Leakage Current for pins
using DRV_PCI driver
(4)
0.5V
≤
V
IN
≤
2.7V
at LV
DD
= 4.75
LV
DD
= 3.6V (GV
DD
≤
3.465)
I
OH
= Driver Dependent
(5)
(GV
DD
= 3.3V)
I
OL
= Driver Dependent
(5)
(GV
DD
= 3.3V)
I
OH
= Driver Dependent
(5)
(BV
DD
= 2.5V)
All outputs except CPU_CLKS[0-2]
I
L
–
±
70
μA
Input Leakage Current all others
(4)
I
L
–
±
10
μA
Output High Voltage
(5)
V
OH
2.4
–
V
Output Low Voltage
(5)
V
OL
–
0.4
V
Output High Voltage
(5)
V
OH
1.85
–
V
I
OH
= Driver Dependent
(5)
(BV
DD
= 2.5V)
CPUCLKS[0-2] Only
V
OH
2.0
–
V
Output Low Voltage
(5)
I
OL
= Driver Dependent
(5)
(BV
DD
= 2.5V)
All outputs except CPU_CLK[0-2]
V
OL
–
0.4
V
I
OL
= Driver Dependent
(5)
(BV
DD
= 2.5V)
CPU_CLK[0-2] Only
V
OL
–
0.3
V
Capacitance
(6)
V
IN
= 0V, f = 1 MHz
C
IN
–
7.0