The IIS Chip Gallery
Echoes (2021)
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by
| Application | Pulp |
| Technology | 65 |
| Manufacturer | TSMC |
| Type | Research |
| Package | QFN56 |
| Dimensions | 2000μm x 2000μm |
| Gates | 2500 kGE |
| Voltage | 1.2 V |
| Power | 134 mW @350 MHz |
| Clock | 200 MHz |
Echoes is a PULPissimo based chip, and uses the new CV32E40P from OpenHW group as its core not the original RI5CY core. The chip has 512 KiB memory, a range of peripherals and an FFT accelerator
Echoes features an autonomous I/O engine supporting a wide set of peripherals, including Ultra-Low-Power radars, MEMS, and digital microphones over I2S protocol with full-duplex Time Division Multiplexing DSP mode, making ECHOES the first open-source SoC which offers this functionality enabling simultaneous communication with up to 16 I/Os devices
The name and the logo of the chip are inspired by Pink Floyd. Davide Rossi is a great fan. The logo is also a play on the fact that the chip has been designed for audio processing applications in mind.