Internet of Things (IoT)

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A 0.4-V 32-kHz Pulse-Injection Temperature-Compensated Crystal Oscillator With Sub-Cycle CL Modulation and DLL-Reused Temperature Sensor

A 0.4-V 32-kHz Pulse-Injection Temperature-Compensated Crystal Oscillator With Sub-Cycle CL Modulation and DLL-Reused Temperature Sensor 150 150
Author(s): Haihua Li, Pui-In Mak, Rui P. Martins, Ka-Meng Lei

Abstract:

This article presents a 0.4-V 32 kHz pulse-injection (PI) temperature-compensated crystal oscillator (TCXO) that incorporates subcycle capacitive load ( $C_{\text {L}}$ ) modulation for frequency compensation. The proposed TCXO compensates for the crystal’s frequency deviation ( $\Delta f$ ) by dynamically adjusting the enabling duration of the additional $C_{\text {L}}$ within each …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3620824
Publisher: IEEE

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Reference-Load Sharing Scheme: An Area- and Energy-Efficient Nonvolatile Register Design Using MTJ Devices

Reference-Load Sharing Scheme: An Area- and Energy-Efficient Nonvolatile Register Design Using MTJ Devices 150 150
Author(s): Masanori Natsui, Tomoo Yoshida, Takahiro Hanyu

Abstract:

This article proposes a circuit configuration for an area- and energy-efficient nonvolatile register using magnetic tunnel junction (MTJ) devices, suitable for persistent computation in intermittent computing environments. The proposed configuration, named the reference-load sharing scheme (RLSS), stores 1 bit of information using the resistance of a dedicated MTJ device and a …

Published in: IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Page(s): 90 – 98
Year of Publication: 2025
Electronic ISSN: 2329-9231
DOI: 10.1109/JXCDC.2025.3611365
Publisher: IEEE

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