Datasheet

UCD9081
SLVS813B –JUNE 2008–REVISED DECEMBER 2010 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
These specifications are over recommended ranges of supply voltage and operating free-air temperature, unless otherwise
noted
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
MISCELLANEOUS
T
retention
Retention of configuration parameters T
J
= 25°C 100 Years
POR, BROWNOUT, RESET (see
(2) (3)
)
t
d(BOR)
2000 ms
V
CC (start)
0.7×V(B_IT-) V
V
(B_IT–)
dV
CC
/dt ≤ 3V/s 1.71 V
Brownout
V
hys(B_IT–)
70 130 180 mV
Pulse length needed at RST pin to accept
t
(reset)
2 ms
reset internally, V
CC
= 3V
DIGITAL OUTPUTS (EN8/GPO1, GPO2, GPO3, GPO4, EN1, EN2, EN3, EN4, EN5, EN6, EN7, SDA, SCL)
I
OH
(max) = –1.5 mA,
(4)
V
CC
= 3V V
CC
– 0.25 V
CC
V
OH
High-level output voltage V
I
OH
(max) = –6 mA,
(5)
V
CC
= 3V V
CC
– 0.6 V
CC
I
OL
(max) = 1.5 mA,
(4)
V
CC
= 3V V
SS
V
SS
+ 0.25
V
OL
Low-level output voltage V
I
OL
(max) = 6 mA,
(5)
V
CC
= 3V V
SS
V
SS
+ 0.6
I
lkg
High-impedance leakage current V
CC
= 3V ±50 nA
(2) The current consumption of the brown-out module is already included in the I
CC
current consumption data.
(3) During power up, device initialization starts following a period of t
d(BOR)
after V
CC
= V
(B_IT–)
+ V
hys(B_IT–)
.
(4) The maximum total current, I
OH
max and I
OL
max, for all outputs combined, should not exceed ±12 mA to hold the maximum voltage drop
specified.
(5) The maximum total current, I
OH
max and I
OL
max, for all outputs combined, should not exceed ±48 mA to hold the maximum voltage drop
specified.
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