Rainbow Electronics ATmega64C1 - Manual (Page 310)

310
7647A–AVR–02/08
ATmega32/64/M1/C1
25.2 DC Characteristics
T
A
= -40
°
C to +125
°
C, V
CC
= 2.7V to 5.5V (unless otherwise noted)
Symbol Parameter Condition Min. Typ. Max. Units
V
IL
Input Low Voltage
Port B, C & D and XTAL1,
XTAL2 pins as I/O
-0.5 0.2V
CC
(1) V
V
IH
Input High Voltage
Port B, C & D and XTAL1,
XTAL2 pins as I/O
0.6V
CC
(2) V
CC
+0.5 V
V
IL1
Input Low Voltage
XTAL1 pin , External
Clock Selected
-0.5 0.1V
CC
(1) V
V
IH1
Input High Voltage
XTAL1 pin , External
Clock Selected
0.7V
CC
(2) V
CC
+0.5 V
V
IL2
Input Low Voltage RESET pin -0.5 0.2V
CC
(1) V
V
IH2
Input High Voltage RESET pin 0.9V
CC
(2) V
CC
+0.5 V
V
IL3
Input Low Voltage RESET pin as I/O -0.5 0.2V
CC
(1) V
V
IH3
Input High Voltage RESET pin as I/O 0.8V
CC
(2) V
CC
+0.5 V
V
OL
Output Low Voltage (3)
(Port B, C & D and
XTAL1, XTAL2 pins as
I/O) I
OL
= 10 mA, V
CC
= 5V
I
OL
= 6 mA, V
CC
= 3V
0.7
0.5
V
V
V
OH
Output High Voltage (4)
(Port B, C & D and
XTAL1, XTAL2 pins as
I/O) I
OH
= -10 mA, V
CC
= 5V
I
OH
= -8 mA, V
CC
= 3V
4.2
2.3
V
V
V
OL3
Output Low Voltage (3)
(RESET pin as I/O)
I
OL
= 2.1 mA, V
CC
= 5V
I
OL
= 0.8 mA, V
CC
= 3V
0.9
0.7
V
V
V
OH3
Output High Voltage (4)
(RESET pin as I/O)
I
OH
= -0.6 mA, V
CC
= 5V
I
OH
= -0.4 mA, V
CC
= 3V
3.8
2.2
V
V
I
IL
Input Leakage
Current I/O Pin V
CC
= 5.5V, pin low
(absolute value)
50 nA
I
IH
Input Leakage
Current I/O Pin V
CC
= 5.5V, pin high
(absolute value)
50 nA
R
RST
Reset Pull-up Resistor 30 200 k
Ω
R
pu
I/O Pin Pull-up Resistor 20 50 k
Ω