MB3793-30A
6
■ ELECTRICAL CHARACTERISTICS
1. DC Characteristics
(VCC = +3.3 V, Ta = +25 °C)
* : The values enclosed in parentheses ( ) are setting assurance values.
2. AC Characteristics
(VCC = +3.3 V, Ta = +25 °C)
* : The voltage range is 10% to 90% at testing the reset output transition time.
Parameter Symbol Conditions
Value
Unit
Min Typ Max
Power supply current I
CC After exit from reset 31 45 µA
Detection voltage
V
SL VCC falling
Ta = +25 °C 2.93 3.00 3.07
V
Ta = −40 °C to +85 °C (2.89)* 3.00 (3.11)*
V
SH VCC rising
Ta = +25 °C 3.00 3.07 3.14
V
Ta = −40 °C to +85 °C (2.96)* 3.07 (3.18)*
Detection voltage hysteresis
difference
V
SHYS VSH – VSL 30 70 110 mV
Clock-input threshold voltage
V
CIH CK rising (0.7)* 1.3 1.9 V
V
CIL CK falling 0.5 1.0 (1.5)* V
Clock-input hysteresis V
CHYS (0.1)* 0.3 (0.6)* V
Inhibition-input voltage
V
IIH 2.2 VCC
V
V
IIL 0 0.8
Input current
(CK1, CK2, INH)
I
IH VCK = 5 V 01.0µA
I
IL VCK = 0 V −1.0 0 µA
Reset output voltage
V
OH IRESET = −3 mA 2.8 3.10 V
V
OL IRESET = +3 mA 0.12 0.4 V
Reset-output minimum power
voltage
V
CCL IRESET = +50 µA 0.8 1.2 V
Parameter Symbol Conditions
Value
Unit
Min Typ Max
Power-on reset hold time t
PR CTP = 0.1 µF 30 75 120 ms
Watchdog timer monitor time t
WD
CTW = 0.01 µF,
C
TP = 0.1 µF
81624ms
Watchdog timer reset time t
WR CTP = 0.1 µF25.59ms
Clock input pulse width t
CKW 500 ns
Clock input pulse cycle t
CKT 20 µs
Reset (RESET
) output transition
time
Rising t
r*CL = 50 pF 500 ns
Falling t
f*CL = 50 pF 500 ns
