MB3793-27A
■ ELECTRICAL CHARACTERISTICS
1. DC Characteristics
(VCC = +3.3 V, Ta = +25°C)
Value
Unit
Parameter
Symbol
ICC1
Conditions
Min.
—
Typ.
Max.
Power supply current
After exit from reset
31
55
µA
Ta = +25°C
2.63
2.70
2.70
2.76
2.76
2.77
VSL
VCC falling
V
Ta = –40°C to +85°C (2.59)*
Ta = +25°C 2.69
(2.81)*
2.87
Detection voltage
VSH
VCC rising
VSH – VSL
V
Ta = –40°C to +85°C (2.65)*
(2.87)*
Detection voltage hysteresis
difference
VSHYS
35
65
95
mV
VCIH
VCIL
VCHTS
VIIH
VIIL
CK rising
CK falling
(0.7)*
0.5
1.3
1.0
0.3
—
1.9
(1.5)*
(0.6)*
—
V
V
V
Clock-input threshold voltage
Clock-input hysteresis
—
—
—
(0.1)*
2.2
—
Inhibition-input voltage
V
0
0.8
IIH
VCK = 5 V
—
0
1.0
µA
µA
V
Input current
(CK1, CK2, INH)
IIL
VCK = 0 V
–1.0
2.8
—
0
—
VOH
VOL
IRESET = –5 mA
IRESET = +5 mA
3.10
0.12
—
Reset output voltage
0.4
V
Reset-output minimum
power voltage
VCCL
IRESET = +50 µA
—
0.8
1.2
V
* : The values enclosed in parentheses ( ) are setting assurance values.
2. AC Characteristics
(VCC = +3.3 V, Ta = +25°C)
Value
Unit
Parameter
Symbol
Conditions
Min.
Typ.
75
—
Max.
Power-on reset hold time
VCC input pulse width
VCC delay time
tPR
tPI
CTP = 0.1 µF
CTP = 0.1 µF
CTP = 0.1 µF
30
(8)*2
—
120
ms
µs
µs
—
(10)*2
tPD
2
CTW = 0.01 µF,
CTP = 0.1 µF
Watchdog timer monitor time
tWD
8
16
24
ms
Watchdog timer reset time
Clock input pulse width
Clock input pulse cycle
tWR
tCKW
tCKT
tr*1
CTP = 0.1 µF
—
2
500
20
—
5.5
—
—
—
—
9
ms
ns
µs
ns
ns
—
—
—
Rising
Falling
CL = 50 pF
CL = 50 pF
500
500
Reset (RESET) output transition
time
tf*1
—
*1:The voltage range is 10% to 90% at testing the reset output transition time.
*2:The values enclosed in parentheses ( ) are setting assurance values.
6
FUJITSU [ FUJITSU ]
