CobraNet Hardware User’s Manual
Pinout and Signal Descriptions
4.3 Characteristics and Specifications
4.3.1 Absolute Maximum Ratings
Parameter
Symbol
Min
Max
Unit
DC power supplies:
Core supply
PLL supply
I/O supply
VDD
VDDA
VDDIO
–0.3
–0.3
–0.3
-
2.0
2.0
5.0
0.3
V
V
V
V
|VDDA – VDD|
Input current, any pin except supplies
Input voltage on FILT1, FILT2
Input voltage on I/O pins
I
-
+/- 10
2.0
5.0
mA
V
V
in
V
filt
V
-
inio
Storage temperature
T
–65
150
°C
stg
Caution: Operation at or beyond these limits may result in permanent damage to the device. Normal operation is
not guaranteed at these extremes.
4.3.2 Recommended Operating Conditions
Parameter
Symbol
Min
Typ
Max
Unit
DC power supplies:
Core supply
PLL supply
I/O supply
VDD
VDDA
VDDIO
1.71
1.71
3.13
1.8
1.8
3.3
1.89
1.89
3.46
0.3
V
V
V
V
|VDDA – VDD|
Ambient operating temperature
T
-
°C
A
- CQ
- DQ
0
- 40
+ 70
+ 85
4.3.3 Digital DC Characteristics
(measurements performed under static conditions.)
Parameter
High-level input voltage
Symbol
Min
2.0
Typ
-
Max
-
Unit
V
V
IH
Low-level input voltage, except XTI
Low-level input voltage, XTI
Input Hysteresis
V
-
-
-
-
0.8
0.6
V
V
IL
V
ILXTI
V
V
0.3
-
V
V
hys
OH
High-level output voltage at
VDDIO * 0.9
-
I = –8.0 mA = –16.0 mA
O
O
Low-level output voltage at
I = 8.0 mA = –16.0 mA
V
-
-
-
-
-
-
VDDIO * 0.1
V
OL
IN
O
O
Input leakage current (all pins without internal pull-
up resistors except XTI)
Input leakage current (pins with internal pull-up
resistors, XTI)
I
5
µA
µA
I
50
IN-PU
4.3.4 Power Supply Characteristics
(measurements performed under operating conditions))
Parameter
Min
Typ
Max
Unit
Power supply current:
Core and I/O operating: VDD
PLL operating: VDDA
With external memory and most ports operating: VDDIO
(Note 1)
-
-
-
500
10
120
-
-
-
mA
mA
mA
NOTES:1. Dependent on application firmware and DSP clock speed.
16 ©Copyright 2005 Cirrus Logic, Inc.
DS651UM23
Version 2.3
CIRRUS [ CIRRUS LOGIC ]
