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MAX3225EEAP+

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Maxim Integrated Pre-ordered Chips, SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentinterface icsmax3225eeap+factory-2.0.0extractor-text

Verified MAX3225EEAP+

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, 20 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: MAX3225EEAP+ · SSOP-20-208mil · 20 pins
  • ✓copper: 20 copper pads, none touching another net
  • ✓datasheet: all 20 pin names found in the 25-page datasheet
  • ✓distributor: lcsc C1543865, digikey MAX3225EEAP+-ND, mouser 700-MAX3225EEAP
  • ✓family: SSOP-20_5.3x7.2mm_P0.65mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-z0tk30kn/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: 20 pins = 20 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 20 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ max3225eeap.kicad_sym✓ max3225eeap.kicad_mod✓ max3225eeap.step
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MAX3225EEAP+

Maxim Integrated · Pre-ordered Chips · SSOP-20-208mil

MAX3225EEAP+ from Maxim Integrated, in a SSOP-20-208mil. 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 to Transmit output, active-high; READY is enabled 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 +5.5V 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 -5.5V generated by the charge pump.
8 T2OUT output RS-232 transmitter output; the transmitter is disabled to high impedance when FORCEOFF is low or AutoShutdown Plus is active, and outputs can be driven to ±12V when powered off or shut down.
9 R2IN input RS-232 receiver input; R_IN to GND is rated ±25V absolute maximum.
10 R2OUT output TTL/CMOS receiver output.
11 INVALID output Valid signal detector output, active low; a logic high indicates that a valid RS-232 level is present on a receiver input.
12 T2IN input TTL/CMOS transmitter input; the transmitter inputs have no pullup resistors, so unused inputs should be connected to GND or VCC.
13 T1IN input TTL/CMOS transmitter input; the transmitter inputs have no pullup resistors, so unused inputs should be connected to GND or VCC.
14 FORCEON input Force-On input, active-high; drive high to override AutoShutdown Plus and keep transmitters and receivers on (FORCEOFF must be high).
15 R1OUT output TTL/CMOS receiver output.
16 R1IN input RS-232 receiver input; R_IN to GND is rated ±25V absolute maximum.
17 T1OUT output RS-232 transmitter output; the transmitter is disabled to high impedance when FORCEOFF is low or AutoShutdown Plus is active, and outputs can be driven to ±12V when powered off or shut down.
18 GND power_in Ground.
19 VCC power_in +3.0V to +5.5V single supply voltage.
20 FORCEOFF input Force-Off input, active-low; when low, transmitters are in high impedance, charge pumps are shut down, and receivers are active (MAX3225E), and Force-Off overrides AutoShutdown Plus and FORCEON.

Key specifications

Parameter Value
Manufacturer Maxim Integrated
Package SSOP-20-208mil
Category Interface ICs
Pins 20

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
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 R_IN receiver inputs 6
Input Threshold Low 0.6 1.2 V TA = +25°C, VCC = 3.3V 6
Input Threshold Low 0.8 1.5 V TA = +25°C, VCC = 5.0V 6
Input Threshold High 1.5 2.4 V TA = +25°C, VCC = 3.3V 6
Input Threshold High 1.8 2.4 V TA = +25°C, VCC = 5.0V 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 (R_IN, T_OUT) -15 15 kV IEC 1000-4-2 Air Discharge 7
ESD Protection, IEC 1000-4-2 Contact Discharge (R_IN, T_OUT) -8 8 kV IEC 1000-4-2 Contact Discharge 7
ESD Protection, Human Body Model (R_IN, T_OUT) -15 15 kV Human Body Model 7
Receiver Input Threshold to INVALID Output High, Positive threshold 2.7 V AutoShutdown Plus (FORCEON = GND, FORCEOFF = VCC), Figure 4a 7
Receiver Input Threshold to INVALID Output High, Negative threshold -2.7 V AutoShutdown Plus (FORCEON = GND, FORCEOFF = VCC), Figure 4a 7
Receiver Input Threshold to INVALID Output Low -0.3 0.3 V AutoShutdown Plus (FORCEON = GND, FORCEOFF = VCC), Figure 4a 7
INVALID, READY Output Voltage Low (MAX3224E-MAX3227E) 0.4 V IOUT = -1.6mA 7
Receiver Positive or Negative Threshold to INVALID High tINVH 1 μs VCC = 5V, Figure 4b 7
Receiver Positive or Negative Threshold to INVALID Low tINVL 30 μs VCC = 5V, Figure 4b 7
Receiver or Transmitter Edge to Transmitters Enabled tWU 100 μs VCC = 5V, Figure 5b (Note 2) 7
Receiver or Transmitter Edge to Transmitters Shutdown 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
Maximum Data Rate 1000 kbps VCC = 3.0V to 4.5V, RL = 3kΩ, CL = 250pF, one transmitter switching 8
Receiver Propagation Delay tPHL tPHL 0.15 μs R_IN to R_OUT, CL = 150pF 8
Receiver Propagation Delay tPLH tPLH 0.15 μs R_IN to R_OUT, CL = 150pF 8
Transmitter Skew │tPHL - tPLH│ 25 ns (Note 3) 8
Receiver Skew │tPHL - tPLH│ 50 ns 8
Transition-Region Slew Rate 24 150 V/μs VCC = 3.3V, TA = +25°C, RL = 3kΩ to 7kΩ, CL = 150pF to 1000pF, measured from +3V to -3V or -3V to +3V, one transmitter switching 8
Input Transmitter Hysteresis 0.5 V 6
Receiver Input Threshold Hysteresis 0.5 V 6
Supply Voltage VCC VCC 3 5.5 V Operating range stated in electrical characteristics header 6
Operating Temperature Range (EE grade, MAX3225EEAP+) TA -40 85 °C MAX32_ EE _ operating temperature range 2
Storage Temperature Range TSTG -65 160 °C 2
Lead Temperature (soldering, 10s) 300 °C soldering, 10s 2
Soldering Temperature (reflow) 260 °C reflow 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
R_IN to GND -25 25 V 2
T_OUT to GND -13.2 13.2 V 2
T_IN, FORCEON, FORCEOFF to GND -0.3 6 V 2
Thermal Resistance Junction to Ambient, 20-SSOP, single layer board θJA 125 °C/W Single layer board 3
Thermal Resistance Junction to Case, 20-SSOP, single layer board θJC 32 °C/W Single layer board 3
Thermal Resistance Junction to Ambient, 20-SSOP, four-layer board θJA 84 °C/W Four-layer board 3
Thermal Resistance Junction to Case, 20-SSOP, four-layer board θJC 33 °C/W Four-layer board 3

CAD (KiCad official)

  • Symbol: MAX3225EEAP+
  • Footprint: Package_SO:SSOP-20_5.3x7.2mm_P0.65mm
  • 3D model: SSOP-20-208mil (KiCad packages3D, STEP)
  • 3D model files: max3225eeap-etched.step / max3225eeap-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); max3225eeap.step / max3225eeap.glb are the bare package body.

Provenance

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

  • Datasheet: Maxim Integrated datasheet (25 pp, sha256 8542587c6f3a36a5, retrieved 2026-10-30, 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