HS4318ESS01H datasheet(25/68 Pages) RENESAS

Il numero della parte	HS4318ESS01H

Spiegazioni elettronici	microcomputer designed to increase program productivity

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Produttore elettronici	RENESAS [Renesas Technology Corp]

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HD404318 Series

Table 4

Oscillator Circuit Examples

Circuit Configuration

Circuit Constants

External clock

operation

External

oscillator

OSC

Open

OSC

Ceramic oscillator

(OSC

1, OSC 2)

OSC

Ceramic

GND

Ceramic oscillator: CSA4.00MG (Murata)

f = 1 MΩ ±20%

1 = C2 = 30 pF ±20%

Crystal oscillator

(OSC

1, OSC 2)

OSC

Crystal

GND

OSC1

OSC2

f = 1 MΩ ±20%

1 = C2 = 10 to 22 pF ±20%

Crystal: Equivalent to circuit shown below

0 = 7 pF max.

S = 100 Ω max.

Notes: 1. Since the circuit constants change depending on the crystal or ceramic oscillator and stray

capacitance of the board, the user should consult with the crystal or ceramic oscillator

manufacturer to determine the circuit parameters.

2. Wiring among OSC

1, OSC 2, and elements should be as short as possible, and must not cross

other wiring (see figure 16).

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