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May 25, 2004
IDT 79RC32351
Power-on RampUp
The 2.5V core supply (and 2.5V VccPLL supply) can be fully powered without the 3.3V I/O supply. However, the 3.3V I/O supply cannot exceed the
2.5V core supply by more than 1 volt during power up. A sustained large power difference could potentially damage the part. Inputs should not be
driven until the part is fully powered. Specifically, the input high voltages should not be applied until the 3.3V I/O supply is powered.
There is no special requirement for how fast Vcc I/O ramps up to 3.3V. However, all timing references are based on a stable Vcc I/O.
DC Electrical Characteristics
(Tambient = 0°C to +70°C Commercial, Vcc I/O = +3.3V±5%, Vcc Core and Vcc P = +2.5V±5%)
Para-
meter
Min
Max
Unit
Pin Numbers
Conditions
LOW Drive
Output with
Schmitt Trigger
Input (STI)
I
OL
7.3
—
mA
1-4,6-8,10-16,18,20-25,27-29,32,33,35-37,
39-42,44,46-48,50,52,53,56,58-60,62-69,
71-77,82-85,87-94,96-99,101-105,167,
205-208
V
OL = 0.4V
I
OH
-8.0
—
mA
V
OH = (V
cc I/O - 0.4)
V
IL
—0.8
V
—
V
IH
2.0
(VccI/O
+ 0.5)
V—
V
OH
Vcc - 0.4
—
V—
HIGH Drive
Output with
Standard Input
I
OL
9.4
—
mA
49,51,54,55,106-108,110,112-117,119,
121,123-128,130,132-137,139,141,143,
150,152,154-159,161,163-166,168-170,
172,174-179,181,185-190,192,194-200,
202,204
V
OL = 0.4V
I
OH
-15
—
mA
V
OH = (V
cc I/O - 0.4)
V
IL
—0.8
V
—
V
IH
2.0
(VccI/O
+ 0.5)
V—
V
OH
Vcc - 0.4
—
V—
Clock Drive
Output
I
OL
39
—
mA
183
V
OL = 0.4V
I
OH
-24
—
mA
V
OH = (V
cc I/O - 0.4)
Capacitance
C
IN
—
10
pF
All pins
—
Leakage
I/OLEAK
—20
A
All pins
—
Table 16 DC Electrical Characteristics