Datasheet

ADSP-21061/ADSP-21061L
Rev. D | Page 45 of 52 | May 2013
Input/Output Characteristics (3.3 V)
Figure 34. Typical Drive Currents (V
DD
= 3.3 V)
Figure 35. Typical Output Rise Time (10% to 90% V
DD
) vs. Load Capacitance
(V
DD
= 3.3 V)
SOURCE VOLTAGE (V)
120
- 20
- 80
0 3.5
S
O
U
R
C
E
C
U
R
R
E
N
T
(
m
A
)
0.5 1.0 1.5 2.0 2.5 3.0
100
0
- 40
- 60
60
20
80
40
- 100
- 120
3.0V, +85°C
3.3V, + 2 5 ° C
3.6V, - 40°C
3.6V, - 40°C
3.3V, +25 °C
3.0V, +85°C
V
OH
V
OL
LOAD CAPACITANCE (pF)
0
2
0
20 40 60 80100120
Y = 0.0796x + 1.17
Y = 0.0467x + 0.55
RISETIME
FALL TIME
140 160 180200
4
6
8
10
12
14
16
18
R
I
S
E
A
N
D
F
A
L
L
T
I
M
E
S
(
n
s
)
(
1
0
%
t
o
9
0
%
)
Figure 36. Typical Output Rise Time (0.8 V to 2.0 V) vs. Load Capacitance
(V
DD
= 3.3 V)
Figure 37. Typical Output Delay or Hold vs. Load Capacitance (at Maximum
Case Temperature) (V
DD
= 3.3 V)
LOAD CAPACITANCE (pF)
0
0
20 40 60 80 100 120
Y=0.0391x + 0.36
Y=0.0305x + 0.24
RISETIME
FALL TIME
140 160 180200
R
I
S
E
A
N
D
F
A
L
L
T
I
M
E
S
(
n
s
)
(
0
.
8
V
t
o
2
.
0
V
)
1
2
3
4
5
6
7
8
9
LOAD CAPACITANCE (pF)
O
U
T
P
U
T
D
E
L
A
Y
O
R
H
O
L
D
(
n
s
)
5
- 1
25 20050 75 100 125 150 175
4
3
2
1
NOMINAL
Y=0.0329x - 1.65