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CM-2 Datasheet PDF : 54 Pages
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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
|VDDA – VDD|
VDD
VDDA
VDDIO
– 0.3
– 0.3
–0.3
-
2.0
V
2.0
V
5.0
V
0.3
V
Input current, any pin except supplies
Input voltage on FILT1, FILT2
Input voltage on I/O pins
Storage temperature
Iin
-
+/- 10
mA
Vfilt
2.0
V
Vinio
-
5.0
V
Tstg
– 65
150
°C
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
DC power supplies:
Parameter
Ambient operating temperature
Symbol Min Typ Max
Unit
Core supply VDD
1.71 1.8 1.89
V
PLL supply VDDA
1.71
1.8 1.89
V
I/O supply VDDIO 3.13 3.3 3.46
V
|VDDA – VDD|
0.3
V
TA
- CQ
- DQ
-
°C
0
+ 70
- 40
+ 85
4.3.3 Digital DC Characteristics
(measurements performed under static conditions.)
Parameter
High-level input voltage
Low-level input voltage, except XTI
Low-level input voltage, XTI
Input Hysteresis
High-level output voltage at
IO = –8.0 mAO = –16.0 mA
Low-level output voltage at
IO = 8.0 mAO = –16.0 mA
Input leakage current (all pins without internal pull-
up resistors except XTI)
Input leakage current (pins with internal pull-up
resistors, XTI)
Symbol
Min
Typ
VIH
VIL
VILXTI
Vhys
VOH
2.0
-
-
-
-
-
0.3
VDDIO * 0.9 -
Max
-
0.8
0.6
-
VOL
-
- VDDIO * 0.1
IIN
-
-
5
IIN-PU
-
-
50
Unit
V
V
V
V
V
V
µA
µA
4.3.4 Power Supply Characteristics
(measurements performed under operating conditions))
Parameter
Power supply current:
Core and I/O operating: VDD
PLL operating: VDDA
With external memory and most ports operating: VDDIO
Min
Typ Max
Unit
(Note 1) -
500
-
mA
-
10
-
mA
-
120
-
mA
NOTES:1. Dependent on application firmware and DSP clock speed.
16
©Copyright 2005 Cirrus Logic, Inc.
DS651UM23
Version 2.3
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