User’s Manual
72
A.2 Rabbit 4000 DC Characteristics
Stresses beyond those listed in Table A-3 may cause permanent damage. The ratings are stress
ratings only, and functional operation of the Rabbit 4000 chip at these or any other conditions
beyond those indicated in this section is not implied. Exposure to the absolute maximum rating
conditions for extended periods may affect the reliability of the Rabbit 4000 chip.
Table A-4 outlines the DC characteristics for the Rabbit 4000 at 3.3 V over the recommended
operating temperature range from T
A
= –40°C to +85°C, VDD
IO
= 3.0 V to 3.6 V.
Table A-3. Rabbit 4000 Absolute Maximum Ratings
Symbol
Parameter
Maximum Rating
T
A
Operating Temperature
-40° to +85°C
T
S
Storage Temperature
-55° to +125°C
V
IH
Maximum Input Voltage
VDD
IO
+ 0.3 V
(max. 3.6 V)
VDD
IO
Maximum Operating Voltage
3.6 V
Table A-4. 3.3 Volt DC Characteristics
Symbol
Parameter
Min
Typ
Max
VDD
IO
I/O Ring Supply Voltage, 3.3 V
3.0 V
3.3 V
3.6 V
I/O Ring Supply Voltage, 1.8 V
1.65 V
1.8 V
1.90 V
V
IH
High-Level Input Voltage
(VDD
IO
= 3.3 V)
2.0 V
V
IL
Low-Level Input Voltage
(VDD
IO
= 3.3 V)
0.8 V
V
OH
High-Level Output Voltage
(VDD
IO
= 3.3 V)
2.4 V
V
OL
Low-Level Output Voltage
(VDD
IO
= 3.3 V)
0.4 V
I
IO
I/O Ring Current @ 29.4912 MHz,
3.3 V, 25°C
12.2 mA
I
DRIVE
All other I/O
(except TXD+, TXDD+, TXD-, TXDD-)
8 mA
