ADSP-21061_15 Datasheet, PDF (45/52 Pages) Analog Devices – Commercial Grade SHARC DSP Microcomputer

Input/Output Characteristics (3.3 V)
120
100
80
3.3V, +25°C
60
3.6V, -40°C
40
3.0V, +85°C
20
V_OH
0
-20
3.0V, +85°C
3.3V, +25°C
-40
3.6V, -40°C
-60
-80
-100
V_OL
-120
0
0.5
1.0
1.5
2.0
2.5 3.0
3.5
SOURCE VOLTAGE (V)
Figure 34. Typical Drive Currents (V_DD = 3.3 V)
18
16
14
Y = 0.0796x + 1.17
12
10
RISE TIME
8
6
Y = 0.0467x + 0.55
4
FALL TIME
2
0
0 20 40 60 80 100 120 140 160 180 200
LOAD CAPACITANCE (pF)
Figure 35. Typical Output Rise Time (10% to 90% V_DD) vs. Load Capacitance
(V_DD = 3.3 V)
ADSP-21061/ADSP-21061L
9
8
7
6
Y = 0.0391x + 0.36
5
4
RISE TIME
Y = 0.0305x + 0.24
3
FALL TIME
2
1
0
0 20 40 60 80 100 120 140 160 180 200
LOAD CAPACITANCE (pF)
Figure 36. Typical Output Rise Time (0.8 V to 2.0 V) vs. Load Capacitance
(V_DD = 3.3 V)
5
4
Y = 0.0329x - 1.65
3
2
1
NOMINAL
-1
25
50
75
100
125
150 175
200
LOAD CAPACITANCE (pF)
Figure 37. Typical Output Delay or Hold vs. Load Capacitance (at Maximum
Case Temperature) (V_DD = 3.3 V)
Rev. D | Page 45 of 52 | May 2013