MB3773
■ BLOCK DIAGRAM
VCC
5
Reference AMP.
1.24V
1.24V
Reference Voltage Generator
+
_
VREF
6
100
kΩ
1.2µA
COMP.O
10µA
+
_
+
_
10µA
COMP.S
+
R
S
Q
_
VS
7
40kΩ
Inhibit
CK
Watch
Dog
3
Timer
P. G
GND
4
2
1
8
CT
RESET
RESET
■ RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
VCC
IOL
Value
Unit
V
Supply voltage
+3.5 to +16
0 to 20
Reset, reset sink current
VREF output current
mA
µA
ms
µs
IOUT
tWD
-200 to +5
0.1 to 1000
<100
Watch clock setting time
Rising/falling time
tFC, tRC
CT
Terminal capacitance
Operating ambient temperature
0.001 to 10
-40 to +85
µF
°C
Ta
3
FUJITSU [ FUJITSU ]
