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MAX3226EEAE+
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Maxim Integrated Pre-ordered Chips, SSOP-16-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownMAX3226EEAE+
Maxim Integrated · Pre-ordered Chips · SSOP-16-208mil
MAX3226EEAE+ from Maxim Integrated, in a SSOP-16-208mil. 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 | READY | output | READY is an active-high ready-to-transmit output that goes high when V- goes below -4V and the device is ready to transmit. |
| 2 | C1+ | passive | Positive terminal of the voltage-doubler charge-pump capacitor. |
| 3 | V+ | power_out | V+ is the +5.5V supply generated by the charge pump. |
| 4 | C1- | passive | Negative terminal of the voltage-doubler charge-pump capacitor. |
| 5 | C2+ | passive | Positive terminal of the inverting charge-pump capacitor. |
| 6 | C2- | passive | Negative terminal of the inverting charge-pump capacitor. |
| 7 | V- | power_out | V- is the -5.5V supply generated by the inverting charge pump. |
| 8 | R1IN | input | RS-232 receiver input that tolerates ±25V relative to GND per the absolute maximum ratings. |
| 9 | R1OUT | output | TTL/CMOS receiver output. |
| 10 | INVALID | output | Active-low valid-signal detector output; a logic high indicates that a valid RS-232 level is present on a receiver input. |
| 11 | T1IN | input | TTL/CMOS transmitter input with no pullup; connect unused inputs to GND or VCC. |
| 12 | FORCEON | input | Active-high force-on input that overrides AutoShutdown Plus to keep transmitters and receivers on, provided FORCEOFF is high. |
| 13 | T1OUT | output | RS-232 transmitter output that goes high impedance when disabled and can be driven to ±12V when powered off or shut down. |
| 14 | GND | power_in | Ground reference for the device. |
| 15 | VCC | power_in | Single supply voltage input, +3.0V to +5.5V. |
| 16 | FORCEOFF | input | Active-low force-off input; when low, transmitters are high impedance, charge pumps are shut down, and receivers stay active. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Maxim Integrated |
| Package | SSOP-16-208mil |
| Category | Interface ICs |
| Pins | 16 |
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 Current, AutoShutdown Plus | 1 | 10 | μA | FORCEON = GND, FORCEOFF = VCC, all R_IN idle, all T_IN idle | 6 | ||
| Supply Current, Shutdown | 1 | 10 | μA | FORCEOFF = GND | 6 | ||
| Supply Current, AutoShutdown Plus Disabled | 0.3 | 1 | mA | FORCEON = FORCEOFF = VCC, no load | 6 | ||
| Input Logic Threshold Low | 0.8 | V | T_IN, FORCEON, FORCEOFF | 6 | |||
| Input Logic Threshold High | 2 | V | T_IN, FORCEON, FORCEOFF, VCC = 3.3V | 6 | |||
| Input Logic Threshold High | 2.4 | V | T_IN, FORCEON, FORCEOFF, VCC = 5.0V | 6 | |||
| Transmitter Input Hysteresis | 0.5 | V | 6 | ||||
| Input Leakage Current | -1 | 0.01 | 1 | μA | T_IN, FORCEON, FORCEOFF | 6 | |
| Output Voltage Low | 0.4 | V | IOUT = 1.6mA | 6 | |||
| Input Voltage Range | -25 | 25 | V | RECEIVER INPUTS | 6 | ||
| Input Hysteresis | 0.5 | V | RECEIVER INPUTS | 6 | |||
| Input Resistance | 3 | 5 | 7 | kΩ | TA = +25°C | 6 | |
| Output Voltage Swing | -5 | 5.4 | V | All transmitter outputs loaded with 3kΩ to ground | 6 | ||
| Output Resistance | 300 | Ω | VCC = V+ = V- = 0V, transmitter outputs = ±2V | 6 | |||
| Output Short-Circuit Current | -60 | 60 | mA | 6 | |||
| Output Leakage Current | -25 | 25 | µA | VCC = 0V or 3V to 5.5V, VOUT = ±12V, Transmitters disabled | 6 | ||
| ESD Protection IEC 1000-4-2 Air Discharge | -15 | 15 | kV | R_IN, T_OUT | 7 | ||
| ESD Protection IEC 1000-4-2 Contact Discharge | -8 | 8 | kV | R_IN, T_OUT | 7 | ||
| ESD Protection Human Body Model | -15 | 15 | kV | R_IN, T_OUT | 7 | ||
| INVALID, READY Output Voltage Low | 0.4 | V | IOUT = -1.6mA (MAX3224E-MAX3227E) | 7 | |||
| Receiver Input Threshold to INVALID Output Low tAUTOSHDN | tAUTOSHDN | 15 | 30 | 60 | s | VCC = 5V, Figure 5b (Note 2) | 7 |
| Maximum Data Rate | 250 | kbps | RL = 3kΩ, CL = 1000pF, one transmitter switching | 8 | |||
| Transmitter Skew | 100 | ns | │tPHL - tPLH│ (Note 3) | 8 | |||
| Receiver Skew | 50 | ns | │tPHL - tPLH│ | 8 | |||
| Transition-Region Slew Rate | 6 | 30 | V/μs | VCC = 3.3V, TA = +25°C, RL = 3kΩ to 7kΩ, measured from +3V to -3V or -3V to +3V, one transmitter switching, CL = 150pF to 1000pF | 8 | ||
| Supply Voltage VCC | VCC | 3 | 5.5 | V | C1-C4 = 0.1μF, tested at 3.3V ±10% | 6 | |
| Operating Temperature Range MAX32_ EE _ | TA | -40 | 85 | °C | 2 | ||
| VCC to GND | VCC | -0.3 | 6 | V | 2 | ||
| V+ to GND | V+ | -0.3 | 7 | V | Note 1 | 2 | |
| V- to GND | V- | -7 | 0.3 | V | Note 1 | 2 | |
| V+ + /V-/ | 13 | V | Note 1 | 2 | |||
| T_IN, FORCEON, FORCEOFF to GND | -0.3 | 6 | V | 2 | |||
| R_IN to GND | -25 | 25 | V | 2 | |||
| T_OUT to GND | -13.2 | 13.2 | V | 2 | |||
| Storage Temperature Range | -65 | 160 | °C | 2 | |||
| Lead Temperature (soldering, 10s) | 300 | °C | soldering, 10s | 2 | |||
| Soldering Temperature (reflow) | 260 | °C | reflow | 2 | |||
| Thermal Resistance Junction to Ambient, single layer board (16-SSOP) | θJA | 140 | Single layer board | 2 | |||
| Thermal Resistance Junction to Case, single layer board (16-SSOP) | θJC | 34 | Single layer board | 2 | |||
| Thermal Resistance Junction to Ambient, four-layer board (16-SSOP) | θJA | 86 | Four-layer board | 2 | |||
| Thermal Resistance Junction to Case, four-layer board (16-SSOP) | θJC | 33 | Four-layer board | 2 |
CAD (KiCad official)
- Symbol:
MAX3226EEAE+ - Footprint:
Package_SO:SSOP-16_5.3x6.2mm_P0.65mm - 3D model: SSOP-16-208mil (KiCad packages3D, STEP)
- 3D model files:
max3226eeae-etched.step/max3226eeae-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max3226eeae.step/max3226eeae.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Maxim Integrated datasheet (25 pp, sha256
8542587c6f3a36a5, retrieved 2026-10-28, tier: manufacturer) - 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).