Key facts
- Brand
- Maxim
- Model
- MAX3421E
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-08
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Maxim MAX3421E USB Peripheral/Host Controller with SPI Interface Datasheet
The MAX3421E is a USB peripheral/host controller that provides a full‑speed USB peripheral and full/low‑speed host compliant with USB specification rev 2.0. It includes an integrated transceiver with +15 kV ESD protection, programmable USB connect/disconnect, and an internal serial interface engine that handles low‑level USB protocol tasks.
The device is accessed via a 3‑ or 4‑wire SPI interface that can run up to 26 MHz and supports system voltages from 1.4 V to 3.6 V. It offers eight general‑purpose inputs and eight outputs, multiple FIFO buffers, and a range of registers for both peripheral and host operation. The MAX3421E is supplied in 32‑pin TQFP and TQFN packages and operates from –40 °C to +85 °C.
Maxim MAX3421E specifications
| Operating Temperature Range | -40 °C to +85 °C |
|---|---|
| SPI Clock Frequency | up to 26 MHz |
| Supply Voltage (V_) | 1.4 V to 3.6 V |
| Package Types | 32‑pin TQFP (5 mm × 5 mm) and 32‑pin TQFN (6 mm × 5 mm) |
| General‑Purpose I/O | 8 inputs, 8 outputs |
| USB Speed Support (Peripheral) | Full‑Speed 12 Mbps |
| USB Speed Support (Host) | Full‑Speed 12 Mbps, Low‑Speed 1.5 Mbps |
| ESD Protection | +15 kV on D+, D‑, and VBCOMP |
Source: Maxim MAX3421E USB Peripheral/Host Controller with SPI Interface Datasheet
All Maxim MAX3421E documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What voltage range does the MAX3421E support for its SPI interface?
The device operates with a supply voltage (V_) from 1.4 V to 3.6 V.
From: Maxim MAX3421E USB Peripheral/Host Controller with SPI Interface Datasheet
What is the maximum SPI clock frequency for the MAX3421E?
The SPI interface can be clocked up to 26 MHz.
From: Maxim MAX3421E USB Peripheral/Host Controller with SPI Interface Datasheet
Which USB speeds are supported by the MAX3421E?
It supports full‑speed (12 Mbps) and low‑speed (1.5 Mbps) USB operation.
From: Maxim Integrated MAX3421E USB Peripheral/Host Controller Datasheet