SN74HC148: Higher temperature range pin 2 pin device recommendation

Victoria Qin

Part Number: SN74HC148
Other Parts Discussed in Thread: CD74HC147

Tool/software:

Hi experts,

Good day!

My customer is using SN74HC148DR. But the temperature is only up to 85C. Do we have pin 2 pin device which could be operated up to 105C?

BR,

Victoria

over 1 year ago

0 Clemens Ladisch over 1 year ago

Guru 327760 points

There is no P2P device. (The obsolete 74HC148FPEL-E uses a wider package.)

0 Victoria Qin over 1 year ago in reply to Clemens Ladisch

TI__Expert 3540 points

Hi Clemens,

Does it has Q-grade version?

Many of our logic device has 85C max TA. 85C is harder and harder to meet nowadays customer's demand. If customer wants to choose >105C device, is there any selection guidance?

BR,

Victoria

0 Clemens Ladisch over 1 year ago in reply to Victoria Qin

Guru 327760 points

An automotive device would have matched. There is no P2P device.

0 Victoria Qin over 1 year ago in reply to Clemens Ladisch

TI__Expert 3540 points

If customer wants to choose >105C device, is there any selection guidance? Most of our logic devices are only allowed to 85C.

0 Clemens Ladisch over 1 year ago in reply to Victoria Qin

Guru 327760 points

Use the search function; here is a search for −55 °C priority encoders: ti.com/switches-multiplexers/digital-multiplexers-encoders/products.html#1192=-55;0&-2=contains;priority

The CD74HC147 is a 10-to-4 priority encoder with a somewhat similar pinout.

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SN74HC148: Higher temperature range pin 2 pin device recommendation