No-code, no-static-power state machine in mixed-signal programmables

January 08, 2016 // By Graham Prophet
Silego Technology’s fifth generation of its GreenPAK (GPAK) programmable mixed-signal ICs, the SLG46531V GPAK 5, joins the company’s configurable mixed-signal ICs (CMICs), adding functions such as an asynchronous state machine, and I²C for on-the-fly reconfiguration.

This latest generation device, including Silego’s new Asynchronous State Machine and I²C blocks, adds flexibility, functionality, and ease of design to the NVM programmable GPAK family of devices. With the addition of the asynchronous state machine, designers can implement up to eight unique states with zero code, zero static power, and fail-safe operation. The addition of I²C enables designers to change device configuration, such as analogue comparator thresholds, on-the-fly. The I²C block can also act as a digital IO expander. Included in the SLG46531V are improved counter/delay blocks, featuring one-shot and frequency detect modes, as well as the capability to drive an external crystal oscillator.


These new functions, along with the configurable digital and analogue blocks seen in previous generations of GPAK, are all packed into a 2.0 x 3.0 mm 20-pin STQFN with 18-GPIO.

Like other devices in the GPAK family, development of SLG46531V projects uses the GPAK development hardware and GUI interface of GPAK Designer, allowing engineers to quickly implement new designs and respond to changing design requirements. Unique to this latest generation, designers now have the ability to perform on-board emulation, within their design, using I ²C.

“We have really taken a huge leap forward in terms of functionality and flexibility with GreenPAK 5,” states Sean Carty, Senior Product Marketing Engineer. “These devices offer our customers the potential to do even more with an already extremely versatile platform.”


Silego Technology is a fabless semiconductor company creating configurable mixed-signal integrated circuits, or CMICs that integrate analogue, digital logic, mixed-signal and power functions while eliminating passive and discrete components.