4513 datasheet(71/210 Pages) RENESAS

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1-58

HARDWARE

4513/4514 Group User’s Manual

Clock signal f(XIN) is obtained by externally connecting a ceramic

resonator.

Connect this external circuit to pins XIN and XOUT at the shortest

distance. A feedback resistor is built in between pins XIN and XOUT.

When an external clock signal is input, connect the clock source to

XIN and leave XOUT open. When using an external clock, the maxi-

mum value of external clock oscillating frequency is shown in Table

24.

Table 24 Maximum value of external clock oscillation frequency

Supply voltage

VDD = 2.0 V to 5.5 V

VDD = 4.0 V to 5.5 V

VDD = 2.5 V to 5.5 V

VDD = 2.0 V to 5.5 V

VDD = 2.5 V to 5.5 V

VDD = 4.0 V to 5.5 V

VDD = 2.5 V to 5.5 V

Oscillation frequency (duty ratio)

3.0 MHz (40 % to 60 %)

1.0 MHz (40 % to 60 %)

0.8 MHz (40 % to 60 %)

3.0 MHz (40 % to 60 %)

1.0 MHz (40 % to 60 %)

ROM ORDERING METHOD

Please submit the information described below when ordering

Mask ROM.

(1) Mask ROM Order Confirmation Form ..................................... 1

(2) Data to be written into mask ROM ............................... EPROM

(three sets containing the identical data)

(3) Mark Specification Form .......................................................... 1

Fig. 42 Ceramic resonator external circuit

Fig. 43 External clock input circuit

Note: Externally connect a

damping resistor Rd de-

pending on the oscillation

frequency.

(A feedback resistor is

built-in.)

Use the resonator manu-

facturer’s recommended

value because constants

such as capacitance de-

pend on the resonator.

Mask ROM version

One Time PROM version

4513/4514

XIN

XOUT

CIN

COUT

4513/4514

XIN

XOUT

External oscillation circuit

VDD

VSS

Middle-speed mode

High-speed mode

Middle-speed mode

High-speed mode

FUNCTION BLOCK OPERATIONS/ROM ORDERING METHOD

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