Key facts
- Brand
- Maxim
- Model
- MAX321
- Category
- Other Electronics
- Documents
- 3
- Languages
- EN
- Last added
- 2012-05-08
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Maxim MAX3212 RS‑232 Transceiver Datasheet
The MAX3212 is a low‑power RS‑232 line driver/receiver from Maxim. It provides three drivers and five receivers, operates from 2.7 V to 3.6 V, and maintains true RS‑232 voltage levels across the range. The device includes Maxim’s Auto‑Shutdown feature that reduces supply current to 1 µA when no valid signal is detected.
The transceiver is offered in 28‑pin SO and SSOP packages and guarantees a data rate of 235 kbps. Detailed electrical characteristics, timing specifications, and pin descriptions are provided for designers integrating the part into notebook, palmtop, and battery‑powered equipment.
Maxim MAX321 specifications
| Supply current (Auto‑Shutdown) | 1 µA |
|---|---|
| Operating voltage range | 2.7 V to 3.6 V |
| Number of drivers | 3 |
| Number of receivers | 5 |
| Guaranteed data rate | 235 kbps |
| Package types | 28‑pin SO, 28‑pin SSOP |
All Maxim MAX321 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the supply current when Auto‑Shutdown is active?
The MAX3212 draws only 1 µA in Auto‑Shutdown mode.
How many RS‑232 drivers and receivers does the MAX3212 provide?
It provides three RS‑232 drivers and five RS‑232 receivers.
What is the supply current when AutoShutdown is active?
The MAX3218 draws only 1 pA in AutoShutdown mode.
What voltage range can the MAX3218 operate from?
It operates from a single supply voltage between 1.8 V and 4.25 V.
What supply voltage range do the MAX320/321/322 support?
They operate from ±3 V to ±8 V dual supplies.
From: Maxim MAX320/MAX321/MAX322 Precision Dual‑Supply SPST Analog Switches Datasheet
What is the maximum on‑resistance of the MAX320?
The MAX320 series has a maximum on‑resistance of 35 Ω.
From: Maxim MAX320/MAX321/MAX322 Precision Dual‑Supply SPST Analog Switches Datasheet