December 21, 2018
Holtek HT7133-1 - 30mA LDO : weekend die-shot
Holtek HT7133-1 is a tiny CMOS LDO able to deliver 30mA. 5-bit fuses on the left side is likely for output voltage trim (3% specified Vout tolerance), some of the voltage customization has to be done via masks. Die size 499x490 µm.Closer look at fuses:
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December 13, 2018
"Luch" quartz wristwatch IC : weekend die-shot
Inside old (199x) Belorussian wristwatch I've found this IC:After metalization etch:
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October 22, 2018
October 11, 2018
Freescale/NXP MC56F82323 - 50MIPS DSP µC : weekend die-shot
Freescale/NXP MC56F82323 is a 50MIPS DSC (DSP-capable microcontroller).September 29, 2018
Ti TPS62321 - 3-MHz Step-Down DCDC : weekend die-shot
Texas Instruments TPS62321 is a 3-MHz Step-Down DCDC converter with internal MOSFET and synchronous rectification.Look at this staggering number of test pads!
Die size 1983x981 µm.
September 24, 2018
Toshiba 2SC3421 - NPN audio BJT : weekend die-shot
Toshiba 2SC3421 is a 120V 1A NPN BJT for audio applications.Die size 1053x1055 µm.
September 16, 2018