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MAX13443EASA+T
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Analog Devices Inc Maxim Integrated RS-485 / RS-422 ICs, SO-8. 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
markdownMAX13443EASA+T
Analog Devices Inc Maxim Integrated · RS-485 / RS-422 ICs · SO-8
MAX13443EASA+T from Analog Devices Inc Maxim Integrated, in a SO-8. 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 | RO | output | Receiver output: when the receiver is enabled, RO is high if (VA - VB) ≥ -50mV and low if (VA - VB) ≤ -200mV. |
| 2 | RE | input | Receiver output enable: pull RE low to enable RO; RE high with DE low puts the device into low-power shutdown. |
| 3 | DE | input | Driver output enable: force DE high to enable the driver and pull DE low to three-state the driver output; RE high with DE low enters low-power shutdown (max 20µA supply current). |
| 4 | DI | input | Driver input: a logic-low on DI forces the noninverting output low and the inverting output high, and a logic-high forces the noninverting output high and the inverting output low. |
| 5 | GND | power_in | Ground. |
| 6 | A | bidirectional | Noninverting receiver input and driver output; the MAX13443E withstands ±60V fault voltages to ground, and a termination resistor between A and B is required during normal operation to guarantee overvoltage protection. |
| 7 | B | bidirectional | Inverting receiver input and driver output; the MAX13443E withstands ±60V fault voltages to ground, and a termination resistor between A and B is required during normal operation to guarantee overvoltage protection. |
| 8 | VCC | power_in | Positive supply, VCC = +4.75V to +5.25V; bypass VCC to GND with a 0.1µF ceramic capacitor for normal operation, or 1µF ceramic for full ESD protection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | SO-8 |
| Category | Interface |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Differential driver output voltage (RL = 100Ω) | VOD | 2 | V | Figure 1, RL = 100Ω | 2 | ||
| Differential driver output voltage (RL = 54Ω) | VOD | 1.5 | V | Figure 1, RL = 54Ω | 2 | ||
| Change in magnitude of differential output voltage | ΔVOD | 0.2 | V | Figure 1, RL = 100Ω or 54Ω (Note 3) | 2 | ||
| Driver common-mode output voltage | VOC | 3 | V | Figure 1, RL = 100Ω or 54Ω | 2 | ||
| Change in magnitude of common-mode voltage (MAX13443E) | ΔVOC | 0.2 | V | Figure 1, RL = 100Ω or 54Ω (Note 3) (MAX13442E/MAX13443E) | 2 | ||
| Driver-input high voltage | VDIH | 2 | V | 2 | |||
| Driver-input low voltage | VDIL | 0.8 | V | 2 | |||
| Driver-input current | IDIN | -2 | 2 | µA | 2 | ||
| Driver short-circuit output current (positive) | IOSD | 350 | mA | 0V ≤ VOUT ≤ +12V (Note 4) | 2 | ||
| Driver short-circuit output current (negative) | IOSD | -350 | mA | -7V ≤ VOUT ≤ VCC (Note 4) | 2 | ||
| Driver short-circuit foldback output current (positive) | IOSDF | 25 | mA | (VCC - 1V) ≤ VOUT ≤ +12V (Note 4) | 2 | ||
| Driver short-circuit foldback output current (negative) | IOSDF | -25 | mA | -7V ≤ VOUT ≤ +1V (Note 4) | 2 | ||
| Driver-limit short-circuit foldback output current (positive) | IOSDL | 6 | mA | VOUT ≥ +20V, RL = 100Ω | 2 | ||
| Driver-limit short-circuit foldback output current (negative) | IOSDL | -6 | mA | VOUT ≤ -15V, RL = 100Ω | 2 | ||
| Receiver input current (receive mode) | IA,B | 250 | µA | VCC = GND, VA, B = 12V | 3 | ||
| Receiver input current (receive mode) | IA,B | -150 | µA | VA, B = -7V | 3 | ||
| Receiver input current (fault voltage) | IA,B | -6 | 6 | mA | VA, B = ±80V (printed row; MAX13443E is rated ±60V) | 3 | |
| Receiver-differential threshold voltage | VTH | -200 | -50 | mV | -7V ≤ VCM ≤ +12V | 3 | |
| Receiver output-low voltage | VOL | 0.4 | V | Figure 2, IOL = 1mA | 3 | ||
| Three-state output current at receiver | IOZR | -1 | 1 | µA | 0V ≤ VA, B ≤ VCC | 3 | |
| Receiver input resistance | RIN | 48 | kΩ | -7V ≤ VCM ≤ +12V | 3 | ||
| Receiver output short-circuit current | IOSR | -95 | 95 | mA | 0V ≤ VRO ≤ VCC | 3 | |
| Control-input high voltage | VCIH | 2 | V | DE, DE, RE | 3 | ||
| Input-current latch during first rising edge | IIN | 90 | µA | DE, RE | 3 | ||
| Supply current, normal operation (MAX13443E) | ICC | 10 | mA | No load, DI = VCC or GND, DE = VCC, RE = GND (MAX13443E) | 3 | ||
| Supply current in shutdown mode (MAX13443E) | ISHDN | 20 | µA | DE = GND, RE = VCC (MAX13442E/MAX13443E) | 3 | ||
| Supply current with output shorted to ±60V (MAX13443E) | ISHRT | -15 | 15 | mA | DE = GND, RE = GND, no load, output in three-state (MAX13443E) | 3 | |
| Driver propagation delay (MAX13443E) | tPLHA, tPLHB | 60 | ns | RL = 27Ω, CL = 50pF, Figure 3 | 5 | ||
| Driver differential propagation delay (MAX13443E) | tDPLH, tDPHL | 60 | ns | RL = 54Ω, CL = 50pF, Figure 4 | 5 | ||
| Driver differential output transition time (MAX13443E) | tLH, tHL | 25 | ns | RL = 54Ω, CL = 50pF, Figure 4 | 5 | ||
| Driver output skew (MAX13443E) | tSKEWAB, tSKEWBA | 10 | ns | RL = 54Ω, CL = 50pF | 5 | ||
| Differential driver output skew (MAX13443E) | tDSKEW | 10 | ns | RL = 54Ω, CL = 50pF, tDSKEW = /tDPLH - tDPHL/ | 5 | ||
| Maximum data rate (MAX13443E) | fMAX | 10 | Mbps | 5 | |||
| Driver enable time to output high (MAX13443E) | tPDZH | 1200 | ns | RL = 500Ω, CL = 50pF, Figure 5 | 5 | ||
| Driver disable time from output high (MAX13443E) | tPDHZ | 1200 | ns | RL = 500Ω, CL = 50pF, Figure 5 | 5 | ||
| Driver enable time from shutdown to output high (MAX13443E) | tPDHS | 4.2 | µs | RL = 500Ω, CL = 50pF, Figure 5 | 5 | ||
| Driver enable time to output low (MAX13443E) | tPDZL | 1200 | ns | RL = 500Ω, CL = 50pF, Figure 6 | 5 | ||
| Driver disable time from output low (MAX13443E) | tPDLZ | 1200 | ns | RL = 500Ω, CL = 50pF, Figure 6 | 5 | ||
| Driver enable time from shutdown to output low (MAX13443E) | tPDLS | 4.2 | µs | RL = 500Ω, CL = 50pF, Figure 6 | 5 | ||
| Driver time to shutdown (MAX13443E) | tSHDN | 800 | ns | RL = 500Ω, CL = 50pF, Figure 6 | 5 | ||
| Receiver propagation delay (MAX13443E) | tRPLH, tRPHL | 85 | ns | CL = 20pF, VID = 2V, VCM = 0V, Figure 7 | 5 | ||
| Receiver output skew (MAX13443E) | tRSKEW | 15 | ns | CL = 20pF, tRSKEW = /tRPLH - tRPHL/ | 5 | ||
| Receiver enable time to output high (MAX13443E) | tRPZH | 400 | ns | RL = 1kΩ, CL = 20pF, Figure 8 | 5 | ||
| Receiver disable time from output high (MAX13443E) | tRPHZ | 400 | ns | RL = 1kΩ, CL = 20pF, Figure 8 | 5 | ||
| Receiver wake time from shutdown (MAX13443E) | tRPWAKE | 4.2 | µs | RL = 1kΩ, CL = 20pF, Figure 8 | 5 | ||
| Receiver enable wake time from shutdown (MAX13443E) | tRPSH | 400 | ns | RL = 1kΩ, CL = 20pF, Figure 8 | 5 | ||
| Receiver disable time from output low (MAX13443E) | tRPLZ | 400 | ns | RL = 1kΩ, CL = 20pF, Figure 8 | 5 | ||
| Overvoltage protection (MAX13443E) | -60 | 60 | V | A, B; RSOURCE = 0Ω, RL = 54Ω | 4 | ||
| ESD protection, human body model | -15 | 15 | kV | A, B, Human Body Model | 4 | ||
| Supply voltage (absolute maximum) | VCC | 7 | V | Voltages referenced to GND | 2 | ||
| RE, DE, DI, TXD input voltage | -0.3 | V | Max is printed as VCC + 0.3V | 2 | |||
| A, B voltage (MAX13443E) | -60 | 60 | V | Note 1 applies (termination resistor required in operation) | 2 | ||
| RO output voltage | -0.3 | V | Max is printed as VCC + 0.3V | 2 | |||
| Storage temperature range | TSTG | -65 | 150 | °C | 2 | ||
| Junction temperature | TJ | 150 | °C | 2 | |||
| Supply voltage (recommended) | VCC | 4.75 | 5 | 5.25 | V | Typical values at VCC = +5V and TA = +25°C | 2 |
| Operating temperature range | TA | -40 | 125 | °C | Automotive temperature range (TMIN to TMAX) | 2 |
CAD (KiCad official)
- Symbol:
MAX13443EASA+T - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SO-8 (KiCad packages3D, STEP)
- 3D model files:
max13443easa-t-etched.step/max13443easa-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max13443easa-t.step/max13443easa-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices Inc Maxim Integrated datasheet (18 pp, sha256
fa322621547c1b2a, retrieved 2026-10-19, 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).