
IBM PowerPC 403GC
22
DC Specifications
Notes:
1. VIVR is the interface voltage reference to which the IVR pin is tied to select either a 3.3V or 5V interface. For
2. The 403GC drives its outputs to the level of VDD and, when not driving, the 403GC outputs can be pulled up to 5V
by other devices in a system if the 403GC IVR pin has been tied to 5V properly.
3. ICC Max is measured at TmC = 85°C, worst-case recommended operating conditions for frequency and voltage as
Note:
1. COut is specified as the load capacitance of a floating output in high impedance.
AC Specifications
Clock timing and switching characteristics are specified in accordance with
recommended operating conditions in
Table 9. AC specifications are
characterized at VDD = 3.14V and TJ = 85°C with the 50pF test load shown in
the figure at right. Derating of outputs for capacitive loading is shown in the
Table 10. 403GC DC Characteristics
Symbol
Parameter
Min
Max
Units
VIL
Input low voltage (except for SysClk)
GND - 0.1
0.8
V
VILC
Input low voltage for SysClk
GND - 0.1
0.8
V
VIH
Input high voltage (except for SysClk)1
2.0
V
IVR + 0.1
V
VIHC
Input high voltage for SysClk1
2.0
V
IVR + 0.1
V
VOL
Output low voltage
0.4
V
VOH
Output high voltage
2.4
VDD
V
IOH
Output high current
2
mA
IOL
Output low current
4
mA
ILI
Input leakage current
50
A
ILO
Output leakage current
10
A
ICC
Supply current (ICC Max at FC of 25 MHz)
2
200
mA
Supply current (ICC Max at FC of 33 MHz)
2
260
mA
Supply current (ICC Max at FC of 40 MHz)
2, 3
315
mA
Table 11. 403GC I/O Capacitance
Symbol
Parameter
Min
Max
Units
CIN
Input capacitance (except for SysClk)
5
pF
CINC
Input capacitance for SysClk
25
pF
COUT
Output capacitance1
7pF
CI/O
I/O pin capacitance
8
pF
Output
Pin
CL
CL = 50 pf for all signals