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MAX3311EEUB+T
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Analog Devices Inc Maxim Integrated RS232 ICs, MSOP-10. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MAX3311EEUB+T
Analog Devices Inc Maxim Integrated · RS232 ICs · MSOP-10
MAX3311EEUB+T from Analog Devices Inc Maxim Integrated, in a MSOP-10. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VCC | power_in | +5V external power supply (4.5V to 5.5V operating range); decouple with at least a 0.1µF capacitor to ground. |
| 2 | C1- | passive | Negative terminal of the voltage inverter charge-pump capacitor; charge-pump capacitors are specified at 0.1µF. |
| 3 | SHDN | input | Shutdown control, active low: when low the charge pump is turned off, V- is pulled to ground, the transmitter output is disabled (high-Z), and the receiver stays active; SHDN input logic thresholds are VIL 0.8V max and VIH 2.4V min. |
| 4 | TIN | input | TTL/CMOS transmitter input with no internal pullup; logic thresholds VIL 0.8V max and VIH 2.4V min. |
| 5 | ROUT | output | TTL/CMOS receiver output; VOL is 0.4V max at 1.6mA and VOH is VCC - 0.6V min at -1.0mA. |
| 6 | RIN | input | ±15kV ESD-protected (Human Body Model) RS-232 receiver input; absolute maximum input voltage is ±25V to GND. |
| 7 | TOUT | output | ±15kV ESD-protected (Human Body Model) RS-232-compatible transmitter output, swinging ±3.7V minimum with a 3kΩ load, with ±60mA short-circuit current. |
| 8 | V- | power_out | Charge-pump generated negative supply of about -4.3V; connect a 0.1µF capacitor to ground. |
| 9 | C1+ | passive | Positive terminal of the voltage inverter charge-pump capacitor. |
| 10 | GND | power_in | Ground reference for the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | MSOP-10 |
| Category | Interface |
| Pins | 10 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Operation Range | VCC | 4.5 | 5 | 5.5 | V | 2 | |
| Supply Current | 100 | 250 | µA | SHDN = VCC, no load | 2 | ||
| Shutdown Supply Current | 1 | 10 | µA | SHDN = GND (MAX3311E only) | 2 | ||
| Input Logic Threshold Low (TIN, SHDN) | VIL | 0.8 | V | 2 | |||
| Input Logic Threshold High (TIN, SHDN) | VIH | 2.4 | V | 2 | |||
| Input Leakage Current | -1 | 0.01 | 1 | µA | 2 | ||
| Output Voltage Low (receiver output) | VOL | 0.4 | V | IOUT = 1.6mA | 2 | ||
| Receiver Input Threshold Low | VIL | 0.8 | V | 3 | |||
| Receiver Input Threshold High | VIH | 2.4 | V | 3 | |||
| Output Voltage Swing | -3.7 | 3.7 | V | Transmitter output loaded with 3kΩ | 3 | ||
| Output Short-Circuit Current | -60 | 60 | mA | 3 | |||
| Output Leakage Current | -25 | 25 | µA | VOUT = ±12V, transmitter disabled | 3 | ||
| ESD Protection Voltage (transmitter output, receiver input) | -15 | 15 | kV | Human Body Model | 3 | ||
| VCC to GND | VCC | -0.3 | 6 | V | 2 | ||
| V- to GND | V- | -7 | 0.3 | V | 2 | ||
| VCC + /V-/ | 13 | V | 2 | ||||
| TIN, SHDN to GND | -0.3 | 6 | V | 2 | |||
| RIN to GND | -25 | 25 | V | 2 | |||
| TOUT to GND | -13.2 | 13.2 | V | 2 | |||
| ROUT, INVALID to GND | -0.3 | V | 2 | ||||
| Operating Temperature Range (MAX331_EEUB) | TA | -40 | 85 | °C | MAX331_EEUB | 2 | |
| Junction Temperature | TJ | 150 | °C | 2 | |||
| Storage Temperature Range | TSTG | -65 | 150 | °C | 2 | ||
| Lead Temperature | 300 | °C | Soldering, 10s | 2 |
CAD (KiCad official)
- Symbol:
MAX3311EEUB+T - Footprint:
Package_SO:MSOP-10_3x3mm_P0.5mm - 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files:
max3311eeub-t-etched.step/max3311eeub-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max3311eeub-t.step/max3311eeub-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices Inc Maxim Integrated datasheet (8 pp, sha256
018bac8fc58602c4, retrieved 2026-10-18, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).
# MAX3311EEUB+T
**Analog Devices Inc Maxim Integrated** · RS232 ICs · MSOP-10
MAX3311EEUB+T from Analog Devices Inc Maxim Integrated, in a MSOP-10. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
## Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | VCC | power_in | +5V external power supply (4.5V to 5.5V operating range); decouple with at least a 0.1µF capacitor to ground. |
| 2 | C1- | passive | Negative terminal of the voltage inverter charge-pump capacitor; charge-pump capacitors are specified at 0.1µF. |
| 3 | SHDN | input | Shutdown control, active low: when low the charge pump is turned off, V- is pulled to ground, the transmitter output is disabled (high-Z), and the receiver stays active; SHDN input logic thresholds are VIL 0.8V max and VIH 2.4V min. |
| 4 | TIN | input | TTL/CMOS transmitter input with no internal pullup; logic thresholds VIL 0.8V max and VIH 2.4V min. |
| 5 | ROUT | output | TTL/CMOS receiver output; VOL is 0.4V max at 1.6mA and VOH is VCC - 0.6V min at -1.0mA. |
| 6 | RIN | input | ±15kV ESD-protected (Human Body Model) RS-232 receiver input; absolute maximum input voltage is ±25V to GND. |
| 7 | TOUT | output | ±15kV ESD-protected (Human Body Model) RS-232-compatible transmitter output, swinging ±3.7V minimum with a 3kΩ load, with ±60mA short-circuit current. |
| 8 | V- | power_out | Charge-pump generated negative supply of about -4.3V; connect a 0.1µF capacitor to ground. |
| 9 | C1+ | passive | Positive terminal of the voltage inverter charge-pump capacitor. |
| 10 | GND | power_in | Ground reference for the device. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | MSOP-10 |
| Category | Interface |
| Pins | 10 |
## Electrical characteristics
Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply Operation Range | VCC | 4.5 | 5 | 5.5 | V | | 2 |
| Supply Current | | | 100 | 250 | µA | SHDN = VCC, no load | 2 |
| Shutdown Supply Current | | | 1 | 10 | µA | SHDN = GND (MAX3311E only) | 2 |
| Input Logic Threshold Low (TIN, SHDN) | VIL | | | 0.8 | V | | 2 |
| Input Logic Threshold High (TIN, SHDN) | VIH | 2.4 | | | V | | 2 |
| Input Leakage Current | | -1 | 0.01 | 1 | µA | | 2 |
| Output Voltage Low (receiver output) | VOL | | | 0.4 | V | IOUT = 1.6mA | 2 |
| Receiver Input Threshold Low | VIL | | | 0.8 | V | | 3 |
| Receiver Input Threshold High | VIH | 2.4 | | | V | | 3 |
| Output Voltage Swing | | -3.7 | | 3.7 | V | Transmitter output loaded with 3kΩ | 3 |
| Output Short-Circuit Current | | -60 | | 60 | mA | | 3 |
| Output Leakage Current | | -25 | | 25 | µA | VOUT = ±12V, transmitter disabled | 3 |
| ESD Protection Voltage (transmitter output, receiver input) | | -15 | | 15 | kV | Human Body Model | 3 |
| VCC to GND | VCC | -0.3 | | 6 | V | | 2 |
| V- to GND | V- | -7 | | 0.3 | V | | 2 |
| VCC + /V-/ | | | | 13 | V | | 2 |
| TIN, SHDN to GND | | -0.3 | | 6 | V | | 2 |
| RIN to GND | | -25 | | 25 | V | | 2 |
| TOUT to GND | | -13.2 | | 13.2 | V | | 2 |
| ROUT, INVALID to GND | | -0.3 | | | V | | 2 |
| Operating Temperature Range (MAX331_EEUB) | TA | -40 | | 85 | °C | MAX331_EEUB | 2 |
| Junction Temperature | TJ | | | 150 | °C | | 2 |
| Storage Temperature Range | TSTG | -65 | | 150 | °C | | 2 |
| Lead Temperature | | | | 300 | °C | Soldering, 10s | 2 |
## CAD (KiCad official)
- Symbol: `MAX3311EEUB+T`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files: `max3311eeub-t-etched.step` / `max3311eeub-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max3311eeub-t.step` / `max3311eeub-t.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Analog Devices Inc Maxim Integrated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588898901869416448) (8 pp, sha256 `018bac8fc58602c4`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).
[Datasheet PDF](docs/max3311eeub-t-datasheet.pdf)