IC category

Ultra-low dropout, wide input range 150mA regulator

Graham Prophet @  eedneurope.com presents the latest ultra-low dropout regulators from Diodes Inc:

The AP7380 series of ultra-low dropout regulators (Diodes Inc.) operates from an up-to-24V input voltage range and offers fixed output voltage options, in USB power, portable equipment, consumer, instrumentation and metering applications.

Inside the vintage 74181 ALU chip

Ken Shirriff writes:

The 74181 ALU (arithmetic/logic unit) chip powered many of the minicomputers of the 1970s: it provided fast 4-bit arithmetic and logic functions, and could be combined to handle larger words, making it a key part of many CPUs.

Inside the vintage 74181 ALU chip – [Link]

Step‐up DC/DC converters with built‐in inductors and control ICs

Measuring 2.5×2.0×1.0mm, the newly‐developed XCL102/XCL103 series of step‐up micro DC/DC converters is designed with built‐in inductors and control ICs. By Julien Happich @ edn-europe.com:

The use of built‐in inductors also allows PCB layouts to be simplified, minimizing unwanted radiation noise and operational trouble. The input voltage can be selected from 0.65V (operation hold voltage) to 6.0V, and the output voltage from 2.2V to 5.5V

Step‐up DC/DC converters with built‐in inductors and control ICs – [Link]

64-layer flash IC enables 1-Tbyte chips

Susan Nordyk @ edn.com writes:

Toshiba has added a 512-Gbit (64-Gbyte), 64-layer flash memory device that employs 3-bit-per-cell TLC (triple-level cell) technology to its BiCS Flash product line. This technology will allow the development of 1-terabyte memory chips for use in enterprise and consumer solid-state drives.

64-layer flash IC enables 1-Tbyte chips – [Link]

The Octopart Guide to IC Packages

@ blog.octopart.com tipped us with his latest article. He writes:

Continuing our series on how to select components, we will discuss different IC packages in this blog. ICs are the backbone of electronic devices, and choosing the right IC requires considering factors like price, reliability, performance, and package, among others. In this blog, we will focus on demystifying different IC packages, so that you can make an informed decision when you select the IC for your next project. We have also included some links to popular ICs.

The Octopart Guide to IC Packages – [Link]

Analyzing the vintage 8008 processor from die photos

Ken Shirriff writes:

The revolutionary Intel 8008 microprocessor is 45 years old today (March 13, 2017), so I figured it’s time for a blog post on reverse-engineering its internal circuits. One of the interesting things about old computers is how they implemented things in unexpected ways, and the 8008 is no exception. Compared to modern architectures, one unusual feature of the 8008 is it had an on-chip stack for subroutine calls, rather than storing the stack in RAM. And instead of using normal binary counters for the stack, the 8008 saved a few gates by using shift-register counters that generated pseudo-random values. In this article, I reverse-engineer these circuits from die photos and explain how they work.

Analyzing the vintage 8008 processor from die photos – [Link]

Wafer-scale-packaged integrated FET switches handle 1 – 4A

by Graham Prophet @ edn-europe.com:

Silego Technology has developed a series of integrated power switches for use in mobile and battery powered products, to carry out power gating of functional blocks within a design; the devices come in sub-mm-size chip scale packages, handle currents from 1 to 4 A, and integrate functions such as in-rush current limiting and over-current or thermal protection.

Wafer-scale-packaged integrated FET switches handle 1 – 4A – [Link]

LTM9100 – Anyside™ High Voltage Isolated Switch Controller with I²C

The LTM9100 μModule is an all-in-one solution for controlling, protecting, and monitoring high voltage power supplies up to 1000VDC. A 5kVRMS galvanic isolation barrier separates the digital interface from the switch controller, driving an external N-channel MOSFET or IGBT switch. Isolated digital measurements of load current, bus voltage, and temperature are accessed via the I2C/SMBus interface, enabling power and energy monitoring of the high voltage bus. The LTM9100 saves design time, certification effort, and board area by wrapping all the needed functionality, including digital telemetry and isolated power, in a compact BGA package.

LTM9100 – Anyside™ High Voltage Isolated Switch Controller with I²C – [Link]

Bluetooth chip is only 4x4mm

by Julien Happich @ edn-europe.com:

Part of the Swatch group, EM Microelectronic announced what the company believes to be the world’s smallest Bluetooth chip. Offered in a 4x4mm QFN-28 package, in a WLCSP-21 or as a bare-die, the EM9304 is optimized for Bluetooth v4.2 low energy enabled products.

Motion sensor offers low-power settings

Susan Nordyk @ edn.com writes:

Small enough for wearable devices, STMicroelectronics’ LIS2DW12 three-axis accelerometer draws only 50 nA in standby mode and 380 nA in low-power mode at a 1.6-Hz output data rate, adding negligible load on the battery. Operating from a supply voltage of 1.62 to 3.6 V, the LIS2DW12 enables extended operation from small coin or button cells.

Motion sensor offers low-power settings – [Link]