Semiconductor Products Insight

Semiconductor Products Insight

As hot as the Texas sun




This month, there was nothing hotter than the Texas sun and the NXP K32L availability. The low power MCU family features 72MHz Cortex-M4 and Cortex-M0+ options with up to 1.25MB of Flash and a 7uA leakage with full RAM retention. Other providers focused on not-as-hot variants of existing parts.

No change.
No change.
We still are encountering missing parts on the website (e.g. we are not able to see ordering parts here: Microchip added over 100 parts mostly variants of ATTiny and PIC16, with also DSPIC33CH and PIC16 VAO parts (Automotive grade).
No change.
Nuvoton added a few variants to the existing M452/M480 series, based on a 192MHz Cortex-M4F core.
NXP finally added the K32L family to its portfolio – it was announced back in February this year. The power-efficient K32 MCUs complement the performance efficient LPC5500 MCU series.

The family targets energy efficiency for low duty cycle applications with wide operating voltage range. The K32L3 sports a 72MHz Cortex-M4 core with an optional Cortex-M0+. The family offers up to 1.25MB/384kB Flash/SRAM, 12-bit 1MSPS ADC, 10-bit DAC and comparator, 32-bit PWM timer modules, and an external memory controller for flexible expansion.

Key features of the K32 L3 MCU family include:

  • Fast wake-up from 2uA current with partial SRAM retention, and 7uA current with full SRAM retention (3V, 25C, DC-DC)
  • Single inductor, multiple output (SIMO) DC-DC, as well as two independent I/O rails, up to 1.8 volts
  • As low as 200nA in always-on VBAT mode, with 32K low power RTC oscillator and register retention and four tamper pins for physical tamper protection
  • Uncompromised Root-of-Trust (RoT) with authenticated boot, encrypted firmware update and storage of public key hash in one-time programmable (OTP), Hardware acceleration for symmetric (AES-256, DES/3DES) and asymmetric (RSA 4096-bit public key, ECC) cryptography, along with SHA-256 hashing and true random number generator (TRNG) with 512-bits of entropy.

The K32 L3 MCU family is sampling now. The K32L2 only keeps the Cortex-M0+ with Flash options ranging from 64/32 to 512/128 kB of Flash/SRAM.

Renesas removed the S5D3 group (120 MHz, 520kB Flash) from the portfolio.
SiLabs released a new variant in the EZR32HG320 family (sub-GHz, Cortex-M0+ and USB) with a 16 dBm PA.
Spansion/Cypress soon Infineon
Cypress released 116 variants of existing families : PSoC4100, PSoC4200.
ST Microelectronics
ST disclosed a few variants of existing parts, nothing earth shaking.
Texas Instruments
A few new TMS320F2810 parts appeared.
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