SN74HC595B: Thermal Pad connection

Matt Small

Part Number: SN74HC595B

Why has the data sheet not been updated to indicate that the thermal pad should be connected to ground? It's been over 6 years since ShreyasRao put in a request to update the datasheet.

I only stumbled upon the answer on this forum by accident.

e2e.ti.com/.../sn74hc595b-question-about-exposed-pad-maximum-frequency-and-pin-connection-for-not-using-pin

over 1 year ago

0 Emrys Maier over 1 year ago

TI__Guru* 96862 points

Hi Matt,

I'm afraid I cannot tell you what happened to Shreyas's request, because I do not know. Updating a datasheet is a long and complex process, so there are many places where it may have 'broken down' along the way.

I'm glad you were able to find the answer you were looking for, as that is the intention of this forum being public and searchable.

You may find it additionally helpful to see our FAQ section, which includes the answer to this question among many others for logic devices.

Logic Frequently Asked Questions

[FAQ] Where do I connect the thermal pad of the logic QFN devices?

Because of the holidays, TI E2E™ design support forum responses will be delayed from Dec. 25 through Jan. 2. Thank you for your patience.

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SN74HC595B: Thermal Pad connection