Microchip MEC152x series embedded controller, ARM Cortex-M4, 224KB SRAM, 108 I/O, I²C/PS/2/QSPI/SMBus/SPI/UART, 1.71V–3.465V, -40°C to 85°C, 128-WFBGA (7x7 mm), Tape & Reel.
| Parameter | Value |
|---|---|
| Mounting | Surface Mount |
| Controller series | MEC152x |
| Program memory type | SRAM (224kB) |
| Supply voltage | 1.71V ~ 3.465V |
| Interface | I²C, PS/2, QSPI, SMBus, SPI, UART |
| Operating temperature | -40°C ~ 85°C (TA) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| RAM size | 32K x 8 |
| Applications | Keyboard and Embedded Controller |
| Number of i (O) | 108 |
| Core processor | ARM® Cortex®-M4 |
| Case | 128-WFBGA |
The Microchip MEC1521H-B0-I/TF-TR is an embedded controller built around an ARM Cortex-M4 core, part of the MEC152x family. It carries 224 KB of SRAM as its program memory.
With 108 general-purpose I/O and interfaces spanning I²C, QSPI, SMBus, SPI, and UART, this part connects to a keyboard matrix, trackpad, fingerprint reader, and sensors.
The ROHS3 compliance is confirmed.
Yes, the interface list includes PS/2, so it can communicate with a standard PS/2 keyboard or mouse. The PS/2 interface is typically handled through dedicated I/O pins with the protocol managed in firmware.
The evidence does not provide a direct comparison between MEC1521 and MEC1523. Both belong to the MEC152x controller series, but the specific differences in SRAM size, I/O count, or peripheral set are not in the record for this part.