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Ultra-low-power binary timekeeper
20 November 2002, DSP, Micros & Memory
Dallas Semiconductor's DS1371 2-wire watchdog clock combines a 32-bit binary counter, periodic alarm, and programmable square-wave output in a small 8-pin microSOP package. Small size and low-voltage makes it ideal for portable and battery-powered systems. The 32-bit counter increments once per second, from which a software algorithm computes time of day, date, month, and year. An additional 24-bit counter can generate a periodic alarm or serve as a watchdog timer. If enabled as a watchdog timer, the watchdog strobe input pin provides a hardware reset of the counter. A configurable output can be used as an interrupt or provide a square wave at one of four selectable frequencies. Address and data are transferred serially through a 2-wire bus that operates from 1,7 V to 5,5 V. The oscillator keeps time while operating down to 1,3 V, consuming less than 500 nA (typ). Operates over -40 to +85°C. |
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Further reading:
- Managing the IoT on an energy budget
28 August 2019, Altron Arrow, Telecoms, Datacoms, Wireless, IoT, DSP, Micros & Memory
Historically, users wanted MCUs because they could process data and solve problems faster than a human could. MCUs also help make products more convenient and consistent in behaviour. The microcontroller ...
- Tiny MCUs for IoT edge devices
28 August 2019, Hi-Q Electronics, DSP, Micros & Memory
Renesas Electronics announced four new RX651 32-bit microcontrollers (MCUs) supplied in tiny 64-pin BGA (4,5 x 4,5 mm) and LQFP (10 x 10 mm) packages. The MCUs address advanced security needs for endpoint ...
- Secure MCU for contactless banking and ID
28 August 2019, Altron Arrow, DSP, Micros & Memory
Featuring the latest 40 nm Flash process as well as enhanced RF technologies, the STMicroelectronics ST31P450 dual-interface secure microcontroller (MCU) delivers high robustness and performance for contactless ...
- Low-power real-time clock
31 July 2019, CST Electronics, Analogue, Mixed Signal, LSI
The MAX31341B nanoPower real-time clock (RTC) from Maxim Integrated Products enables designers of space-constrained systems such as wearables, medical monitors, point-of-sale (POS) equipment and portable ...
- Healthcare sensors for wearable devices
31 July 2019, CST Electronics, Analogue, Mixed Signal, LSI
Designers creating next-generation wearable health and fitness applications can reduce temperature measurement power with the MAX30208, as well as shrink optical solution size with the MAXM86161 from ...
- MCUs with industrial communication interfaces
31 July 2019, Avnet South Africa, DSP, Micros & Memory
Texas Instruments introduced new communications capabilities on its C2000 microcontrollers (MCUs). C2000 F2838x devices enable designers to use a single chip to implement connectivity, including EtherCAT, ...
- Mixed-signal MCUs for digital power
26 June 2019, EBV Electrolink, DSP, Micros & Memory
Targeted at advanced digital power applications and consumer and industrial appliances, the new STM32G4 microcontrollers (MCUs) introduce two new hardware mathematical accelerators to boost processing ...
- Memory IC combines NAND and LPDDR
26 June 2019, iCorp Technologies, DSP, Micros & Memory
The new W71NW20KK1KW from Winbond, which combines robust single level cell (SLC) NAND Flash and high-speed, low-power LPDDR4x memory, provides sufficient memory capacity for 5G cellular modems that are ...
- Flash memories with embedded MAC addresses
26 June 2019, Avnet South Africa, DSP, Micros & Memory
Microchip Technology’s SST26VF Serial Quad I/O (SQI) 3 V Flash family is the industry’s first NOR Flash devices to offer integrated MAC address options. Pre-programmed with EUI-48 and EUI-64 addresses, ...
- USB-C buck charger
29 May 2019, CST Electronics, Power Electronics / Power Management
Designers of portable Li-ion battery-powered electronics can add a USB Type-C (USB-C) charging system to their products with the MAX77860 3A switch-mode charger from Maxim Integrated Products. The device ...
- Dual- and single-core DSCs
29 May 2019, Avnet South Africa, DSP, Micros & Memory
New dual- and single-core dsPIC33C digital signal controllers (DSCs) have been released by Microchip Technology, with more options to meet changing application requirements across memory, temperature ...
- MPUs for open-source software-based designs
29 May 2019, Altron Arrow, DSP, Micros & Memory
STMicroelectronics is applying its Arm Cortex expertise to expand the capabilities of its STM32 microcontroller (MCU) portfolio to applications requiring even more performance, resources and large open-source ...
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