59
SLAS826F – MARCH 2015 – REVISED MARCH 2017
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Specifications
Copyright © 2015–2017, Texas Instruments Incorporated
lists the characteristics of the normal-drive digital outputs. See
through
for the typical characteristics graphs.
(1)
The maximum total current, I
(OHmax)
and I
(OLmax)
, for all outputs combined should not exceed ±48 mA to hold the maximum voltage drop
specified.
(2)
The maximum total current, I
(OHmax)
and I
(OLmax)
, for all outputs combined should not exceed ±100 mA to hold the maximum voltage
drop specified.
(3)
The port can output frequencies at least up to the specified limit - it might support higher frequencies.
(4)
A resistive divider with 2 × R1 and R1 = 3.2k
Ω
between V
CC
and V
SS
is used as load. The output is connected to the center tap of the
divider. C
L
= 20 pF is connected to the output to V
SS
.
(5)
The output voltage reaches at least 20% and 80% V
CC
at the specified toggle frequency.
(6)
Measured between 20% of V
CC
to 80% of V
CC
.
(7)
Measured between 80% of V
CC
to 20% of V
CC
.
Table 5-23. Digital Outputs, Normal I/Os
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V
CC
MIN
MAX
UNIT
V
OH
High-level output voltage
I
(OHmax)
= –1 mA
(1)
2.2 V
V
CC
– 0.25
V
CC
V
I
(OHmax)
= –3 mA
(2)
V
CC
– 0.60
V
CC
I
(OHmax)
= –2 mA
(1)
3.0 V
V
CC
– 0.25
V
CC
I
(OHmax)
= –6 mA
(2)
V
CC
– 0.60
V
CC
V
OL
Low-level output voltage
I
(OLmax)
= 1 mA
(1)
2.2 V
V
SS
V
SS
+ 0.25
V
I
(OLmax)
= 3 mA
(2)
V
SS
V
SS
+ 0.60
I
(OLmax)
= 2 mA
(1)
3.0 V
V
SS
V
SS
+ 0.25
I
(OLmax)
= 6 mA
(2)
V
SS
V
SS
+ 0.60
f
Px.y
Port output frequency (with RC
load)
(3)
VCORE = 1.4 V, C
L
= 20 pF, R
L
(4) (5)
1.62 V
24
MHz
2.2 V
24
3.0 V
24
d
Px.y
Port output duty cycle (with RC
Load)
VCORE = 1.4 V, C
L
= 20 pF, R
L
(4) (5)
1.62 V
40%
60%
2.2 V
40%
60%
3.0 V
45%
55%
f
Port_CLK
Clock output frequency
(3)
VCORE = 1.4 V, C
L
= 20 pF
(5)
1.62 V
24
MHz
2.2 V
24
3.0 V
24
d
Port_CLK
Clock output duty cycle
VCORE = 1.4 V, C
L
= 20 pF
(5)
1.62 V
40%
60%
2.2 V
40%
60%
3.0 V
45%
55%
t
rise,dig
Port output rise time, digital only
port pins
C
L
= 20 pF
(6)
1.62 V
8
ns
2.2 V
5
3.0 V
3
t
fall,dig
Port output fall time, digital only
port pins
C
L
= 20 pF
(7)
1.62 V
8
ns
2.2 V
5
3.0 V
3
t
rise,ana
Port output rise time, port pins
with shared analog functions
C
L
= 20 pF
(6)
1.62 V
8
ns
2.2 V
5
3.0 V
3
t
fall,ana
Port output fall time, port pins
with shared analog functions
C
L
= 20 pF
(7)
1.62 V
8
ns
2.2 V
5
3.0 V
3