SN74LVC1GX04 Power Consumption

A.Wilson

Other Parts Discussed in Thread: SN74LVC1GX04

The SN74LVC1GX04 datasheet states 10uA power consumption with no further information. Is this just the static power consumption and is there a dynamic element in addition?

I wish to use a 12MHz crystal and the Pierce oscillator circuit mentioned in the datasheet powered from a 2.5V supply. Can anybody give an approximate idea of the total power consumption I could expect? Are there any graphs available perhaps that chart oscillator freq vs power?

If it is just 2.5V x 10uA this seems very low.

Regards, Andrew

over 15 years ago

0 A.Wilson over 15 years ago

Intellectual 520 points

I have, now, just tested a custom board with TMX320C5515AZCH12 and TLV320AIC3204IRHBT both clocked by an external SN74LVC1GX04 crystal oscillator driver and 12MHz crystal.

With a 2.5V supply the SN74LVC1GX04 is taking 1.5mA so 3.75mW.

Circuit is the Pierce Oscillator shown in Figure 3 in the SN74LVC1GX04 data sheet. Circuit values are the same except it uses 22pF capacitors. (32pF caps don't allow for strays). Crystal is a Euro Quartz 12.0000MHz MT-30/50/20/16pF.

Data Sheet from: http://focus.ti.com/docs/prod/folders/print/sn74lvc1gx04.html

Regards, Andrew.

0 Emrys Maier over 10 years ago in reply to A.Wilson

TI__Guru* 97046 points

This thread is closed due to inactivity. If you have a question or comment on this topic, please feel free to continue the conversation here -- just don't expect the OP to respond!

Logic

Logic forum

SN74LVC1GX04 Power Consumption