NJU7505

-7 -

Ver.2004-06-04

! AC CHARACTERISTICS

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNIT

NOTE

Oscillation Clock Freq

RST/CLKO Terminal

360

400

440

KHz

12

External Clock Frequency

RST/CLKO Terminal

400

800

KHz

13

Master

RD Pulse Width

RD Terminal

Slave

C

µs

14

Master

RST Pulse Width

RST/CLKO Terminal

Slave

µs

15

RST Rise/Fall Time

tr, tf

RST/CLKO Terminal

100

nA

15

Note 12) The example for the CR Oscillation

Note 13) The example for the external clock input

Note 14) The output wave form of the RD terminal.

Note 15) The input wave form of the RST terminal.

OSC1

OSC2

RT

CT

OSC1

OSC2

Oscillator

Open

tf

tr

*The oscillation clock frequency is calculated from the

output frequency of the RST/CLKO terminal by 3/2.

RT: 13K

Ω(±2%)

CT: 220pF(

±5%)

The input signal for the OSC2 terminal should be the

condition of the pulse of DUTY50%

±10%.

* The oscillation clock frequency is calculated

from the output frequency of the RST/CLKO terminal

by 3/2.