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MAX232EIN

Public Made by Adom

by adom

Texas Instruments RS232 ICs, PDIP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentcommunication interface chip-uart-485-232max232einfactory-2.0.0extractor-text

Verified MAX232EIN

by Ray · last 30 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

30 Oct 2026RayPublished by the parts factory: tier mfr, 16 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: MAX232EIN · PDIP-16 · 16 pins
  • ✓copper: 16 copper pads, none touching another net
  • ✓datasheet: all 16 pin names found in the 29-page datasheet
  • ✓distributor: lcsc C2860250, digikey 296-27963-5-ND, mouser 595-MAX232EIN
  • ✓family: DIP-16_W7.62mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-sc1_fu7w/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 16 pins = 16 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 16 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ max232ein.kicad_sym✓ max232ein.kicad_mod✓ max232ein.step
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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 2h ago
viewers max232ein: viewers · Ray 2h ago
max232ein-etched.glb Publish 0.1.0 · Ray 2h ago
max232ein-etched.step max232ein: factory component page (tier=mfr) · Ray 2h ago
max232ein-hero.glb max232ein: hero GLB from the etched model (keeps the MPN mark) · Ray 2h ago
max232ein-hero.overlay.json Publish 0.1.0 · Ray 2h ago
max232ein.glb Publish 0.1.0 · Ray 2h ago
max232ein.kicad_mod Publish 0.1.0 · Ray 2h ago
max232ein.kicad_sym Publish 0.1.0 · Ray 2h ago
max232ein.lbr Publish 0.1.0 · Ray 2h ago
max232ein.step Publish 0.1.0 · Ray 2h ago
package.json Publish 0.1.0 · Ray 2h ago
page.json Set visibility: public · Ray 2h ago
README.md Publish 0.1.0 · Ray 2h ago
verification.json Verified: Published by the parts factory: tier mfr, 16 pins · Ray 2h ago

MAX232EIN

Texas Instruments · RS232 ICs · PDIP-16

MAX232EIN from Texas Instruments, in a PDIP-16. 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 C1+ passive Positive lead of the C1 charge-pump capacitor, which is connected between C1+ and C1− (1-µF capacitors are specified).
2 VS+ power_out Positive charge-pump output for the storage capacitor only, and it must not be used to supply external loads.
3 C1− passive Negative lead of the C1 charge-pump capacitor.
4 C2+ passive Positive lead of the C2 charge-pump capacitor.
5 C2− passive Negative lead of the C2 charge-pump capacitor.
6 VS− power_out Negative charge-pump output for the storage capacitor only, with an absolute maximum of −15 V.
7 DOUT2 output RS-232 line data output to the remote RS-232 system, with unlimited short-circuit duration per the absolute maximum ratings.
8 RIN2 input RS-232 line data input from the remote RS-232 system, accepting receiver input voltages of ±3 V to ±30 V.
9 ROUT2 output Logic data output to the UART, with a high-level output voltage of at least 3.5 V at IOH = −1 mA.
10 DIN2 input Logic data input from the UART, with a high-level input of at least 2 V and a low-level input of at most 0.8 V.
11 DIN1 input Logic data input from the UART, with a high-level input of at least 2 V and a low-level input of at most 0.8 V.
12 ROUT1 output Logic data output to the UART, with a high-level output voltage of at least 3.5 V at IOH = −1 mA.
13 RIN1 input RS-232 line data input from the remote RS-232 system, accepting receiver input voltages of ±3 V to ±30 V.
14 DOUT1 output RS-232 line data output to the remote RS-232 system, with unlimited short-circuit duration per the absolute maximum ratings.
15 GND power_in Ground reference for the device; all voltages are referenced to network GND.
16 VCC power_in Supply voltage, to be connected to an external 5-V supply, with a recommended range of 4.5 V to 5.5 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package PDIP-16
Category Communication Interface Chip/UART/485/232
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
Input supply voltage VCC -0.3 6 V 4
Supply voltage VCC 4.5 5 5.5 V 4
Operating free-air temperature TA -40 85 °C MAX232EI 4
High-level input voltage (DIN1, DIN2) VIH 2 V 4
Low-level input voltage (DIN1, DIN2) VIL 0.8 V 4
Receiver input voltage (RIN1, RIN2) -3 30 V 4
Receiver input voltage VI -30 30 V Receiver 4
Input voltage VI -0.3 V Driver 4
Output voltage VO -0.3 V ROUT 4
Positive output supply voltage VS+ 15 V 4
Negative output supply voltage VS- -15 -0.3 V 4
Operating virtual junction temperature TJ 150 °C 4
Storage temperature Tstg -65 150 °C 4
Supply current ICC 8 10 mA VCC = 5.5 V; all outputs open; TA = 25°C 5
High-level output voltage VOH 5 7 V DOUT RL = 3 kΩ to GND 5
Low-level output voltage VOL -7 -5 V DOUT RL = 3 kΩ to GND 5
Output resistance ro 300 Ω DOUT VS+ = VS- = 0, VO = ±2 V 5
Short-circuit output current IOS -10 10 mA DOUT VCC = 5.5 V, VO = 0 5
Short-circuit input current IIS 200 µA DIN VI = 0 5
High-level output voltage (receiver) VOH 3.5 V ROUT IOH = -1 mA 5
Low-level output voltage (receiver) VOL 0.4 V ROUT IOL = 3.2 mA 5
Receiver positive-going input threshold voltage VIT+ 1.7 2.4 V RIN VCC = 5 V TA = 25°C 5
Receiver negative-going input threshold voltage VIT- 0.8 1.2 V RIN VCC = 5 V TA = 25°C 5
Input hysteresis voltage Vhys 0.2 0.5 1 V RIN VCC = 5 V 5
Receiver input resistance ri 3 5 7 kΩ RIN VCC = 5 V TA = 25°C 5
Driver slew rate SR 30 V/µs RL = 3 kΩ to 7 kΩ, see Figure 6 5
Driver transition region slew rate SR(t) 3 V/µs RL = 3 kΩ, CL = 2.5 nF, see Figure 7 5
Data rate 250 kbit/s One DOUT switching 5
Receiver propagation delay time, low- to high-level output tPLH(R) 500 ns CL = 50 pF 6
Receiver propagation delay time, high- to low-level output tPHL(R) 500 ns CL = 50 pF 6
Junction-to-ambient thermal resistance (PDIP N) RθJA 43.3 °C/W PDIP (N), 16 pins; C1-C4 = 1 µF at VCC = 5 V ± 0.5 V 4
Junction-to-case (top) thermal resistance (PDIP N) RθJC(top) 30 °C/W PDIP (N), 16 pins; C1-C4 = 1 µF at VCC = 5 V ± 0.5 V 4
Junction-to-board thermal resistance (PDIP N) RθJB 23.3 °C/W PDIP (N), 16 pins; C1-C4 = 1 µF at VCC = 5 V ± 0.5 V 4
Junction-to-top characterization parameter (PDIP N) ψJT 14.4 °C/W PDIP (N), 16 pins; C1-C4 = 1 µF at VCC = 5 V ± 0.5 V 5
Junction-to-board characterization parameter (PDIP N) ψJB 23.2 °C/W PDIP (N), 16 pins; C1-C4 = 1 µF at VCC = 5 V ± 0.5 V 5

CAD (KiCad official)

  • Symbol: MAX232EIN
  • Footprint: Package_DIP:DIP-16_W7.62mm
  • 3D model: PDIP-16 (KiCad packages3D, STEP)
  • 3D model files: max232ein-etched.step / max232ein-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max232ein.step / max232ein.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 7ee3b1dfb9f109b4, retrieved 2026-10-30, tier: manufacturer)
  • 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