UPD6708 datasheet(64/72 Pages) NEC

64 / 72 page

µPD6708

Recommended Ceramic Resonator (12 MHz)

Recommended Crystal Resonator (12 MHz)

Manufacturer

Product Name

External Capacities [pF]

Murata Mfg.

CST12.0MT Note 1

––

CSA12.00MX241

Kyocera Corp.

KBR-12.0M Note 2

Manufacturer

Product Name

External Capacities [pF]

Kinseki, Ltd

HC-49/U

Recommended Ceramic Resonator (12.58 MHz)

Manufacturer

Product Name

External Capacities [pF]

Murata Mfg.

CSTCS12.5MTA 904 Note 1

––

TDK

FCR12.58M2S Note 1

Notes 1.

Can only be used when communication mode 0 or 1 is used (frequency accuracy:

±1.5 %).

This is a custom product, and therefore the manufacturer should be contacted directly.

Caution The oscillation circuit constants and oscillation voltage range shown above indicate the condition under

which oscillation is stable and do not guarantee the oscillation frequency accuracy. If a high oscillation

frequency accuracy is required from the actual circuit, the resonator mounted to the actual circuit must

be adjusted. For details, directly consult the manufacturer of the resonator.

External Circuit

Caution Wire the dotted portion in the above figure as follows to prevent adverse influences of wiring capacitance

when using the system clock oscillation circuit.

• Keep the wiring length as short as possible.

• Do not cross the wiring with any other signal lines.

• Do not place the wiring in the vicinity of a line through which a high alternating current flows.

• Always keep the ground point of the capacitor of the oscillation circuit at the same potential as VSS.

• Do not ground the wiring to a ground pattern through which a high current flows.

• Do not extract signals from the oscillation circuit.

XO GND

UPD6708 데이터시트(PDF) 64 Page - NEC

UPD6708 데이터시트(HTML) 64 Page - NEC

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