Fujitsu MB3773

MB3773

(2)AC Characteristics (VCC = 5 V, Ta = + 25 °C)

* : Output rising/falling time are measured at 10 % to 90 % of voltage.

Parameter Symbol Condition Value Unit

Min Typ Max

VCC input pulse width TPI VCC 8.0 µs

CK input pulse width TCKW CK 3.0 µs

CK input frequency TCK 20 µs

Watch dog timer watching time TWD CT = 0.1 µF 5 10 15 ms

Watch dog timer reset time TWR CT = 0.1 µF123ms

Rising reset hold time TPR CT = 0.1 µF, V CC 50 100 150 ms

Output propagation

delay time from VCC

TPD1 RESET, RL = 2.2 kΩ,

CL = 100 pF 210

µs

TPD2 RESET, RL = 2.2 kΩ,

CL = 100 pF 310

Output rising time* tRRL = 2.2 kΩ,

CL = 100 pF 1.0 1.5

µs

Output falling time* tFRL = 2.2 kΩ,

CL = 100 pF 0.1 0.5

5 V

4 V