Inexpensive Padauk PMS171B-S08 microcontroller die shots #Microcontroller @electronupdate1

The electronupdate blog has done their 6th Paduak decap, the PMS171B-S08.

With only 8 pins there are 6 IO. However it’s clear there are many more bond pads on this die.  We now see a die which is designed to be packaged in a variety of body styles: some with more pins, some less.

The die size is just a bit larger than the super-inexpensive PFS150.  0.403 mm2 vs 0.276 mm2.

For that die area one gets an 8 bit ADC,1 band gap (good for precision voltages) and 1x more 8 bit timer.

Below is the die annotated (the reason they are de-capping so many parts is to try to tease out what each block looks like.  As features are added or removed it should have a visible effect on the design.)

See the blog post for additional details and close-ups.


Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 28,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more https://www.instagram.com/adafruit/

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


Maker Business — To make it through a tough business cycle, layoffs should be a last resort

Wearables — Plastic discoloration? Don’t despair!

Electronics — Lower power!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Happy 8th Birthday MicroPython, sponsorship and more! #Python #Adafruit #CircuitPython @micropython @ThePSF

Adafruit IoT Monthly — IoT Pool Monitor, Edge AI, and more!

Microsoft MakeCode — MakeCode Arcade Spring Update

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — JP’s Product Pick of the Week 5/4/21 NeoKey Socket Keyswitch Breakout FIX @adafruit @johnedgarpark

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.