Dialog Semiconductor releases configurable mixed-signal ICs with ISP
The SLG46826 and the SLG46824 (pictured) are claimed to be the market’s first CMICs that support in-system programming (ISP) using a simple I2C serial interface. This streamlines the development process as it allows the installation of an un-programmed GreenPAK on the PCB, and supports programming of the non-volatile memory (NVM) in-system. This flexibility also allows modification of the configuration during production, or the ability to add functionality to these devices by programming the NVM on the production line. The NVM is specified for 1,000 erase/write cycles. Additionally, the SLG46826 includes 2kbits of EEPROM emulation memory that can replace an I2C-compatible serial EEPROM on the customer’s board, supporting storage of backup configuration data, a checksum or a serial number.
Available in a 2.0 x 3.0mm 20-pin STQFN package, both CMICs are equipped with low power consumption analogue and digital resources, such as analogue comparators (ACMPs), an internal voltage reference, power-on reset, and more advanced digital resources, like multi-function macro-cells.
Running the low power analogue comparators with the internal low power voltage reference consumes just 2.5-micro A (typical) for two ACMPs that are continuously monitoring external signals. In addition, the 2.048kHz oscillator consumes a few hundred nA when active, which makes it perfect for watchdog timer applications, or other designs that require a low-speed oscillator that is always running. The power-on reset block operates continuously, which guarantees that the device will initialise correctly for any power ramp, and consumes just 100nA at a 3.3V supply voltage level. These devices are also dual supply capable, offering a further benefit of being able to translate signals between two voltage domains.
The SLG46826 and the SLG46824 CMICs are suitable for use in a variety of applications, including consumer electronics (IoT devices, wearables, smart tags, smartphones, tablets, notebooks) and commercial and industrial electronics (servers, embedded computing and medical devices).