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SP3243EUER-L

Public Made by Adom

by adom

MaxLinear Pre-ordered Chips, QFN-32-EP(5x5). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentinterface icssp3243euer-lfactory-2.0.0extractor-text

Verified SP3243EUER-L

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, 33 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: SP3243EUER-L · QFN-32-EP(5x5) · 33 pins
  • ✓copper: 33 copper pads, none touching another net
  • ✓datasheet: all 33 pin names found in the 30-page datasheet
  • ✓distributor: lcsc C2671824, digikey SP3243EUER-L-ND, mouser 701-SP3243EUER-L
  • ✓family: QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-95qznotd/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: 33 pins = 33 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 33 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ sp3243euer-l.kicad_sym✓ sp3243euer-l.kicad_mod✓ sp3243euer-l.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 10d ago
viewers sp3243euer-l: viewers · Ray 10d ago
package.json Publish 0.1.0 · Ray 10d ago
page.json Set visibility: public · Ray 10d ago
README.md Publish 0.1.0 · Ray 10d ago
sp3243euer-l-etched.glb Publish 0.1.0 · Ray 10d ago
sp3243euer-l-etched.step sp3243euer-l: factory component page (tier=mfr) · Ray 10d ago
sp3243euer-l-hero.glb sp3243euer-l: hero GLB from the etched model (keeps the MPN mark) · Ray 10d ago
sp3243euer-l-hero.overlay.json Publish 0.1.0 · Ray 10d ago
sp3243euer-l.glb Publish 0.1.0 · Ray 10d ago
sp3243euer-l.kicad_mod Publish 0.1.0 · Ray 10d ago
sp3243euer-l.kicad_sym Publish 0.1.0 · Ray 10d ago
sp3243euer-l.lbr Publish 0.1.0 · Ray 10d ago
sp3243euer-l.step Publish 0.1.0 · Ray 10d ago
verification.json Verified: Published by the parts factory: tier mfr, 33 pins · Ray 10d ago

SP3243EUER-L

MaxLinear · Pre-ordered Chips · QFN-32-EP(5x5)

SP3243EUER-L from MaxLinear, in a QFN-32-EP(5x5). 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 NC unconnected No connection.
2 R1IN input RS-232 receiver input.
3 R2IN input RS-232 receiver input.
4 R3IN input RS-232 receiver input.
5 R4IN input RS-232 receiver input.
6 R5IN input RS-232 receiver input.
7 T1OUT output RS-232 driver output.
8 T2OUT output RS-232 driver output.
9 T3OUT output RS-232 driver output.
10 T3IN input TTL/CMOS driver input.
11 T2IN input TTL/CMOS driver input.
12 T1IN input TTL/CMOS driver input.
13 R5OUT output TTL/CMOS receiver output.
14 R4OUT output TTL/CMOS receiver output.
15 R3OUT output TTL/CMOS receiver output.
16 R2OUT output TTL/CMOS receiver output.
17 R1OUT output TTL/CMOS receiver output.
18 R2OUT output Non-inverting receiver-2 output, active in shutdown.
19 STATUS output TTL/CMOS output indicating online and shutdown status.
20 SHUTDOWN input Apply logic LOW to shut down the driver and charge pump, overriding all AUTO-ONLINE circuitry and ONLINE.
21 ONLINE input Apply logic HIGH to override AUTO-ONLINE circuitry keeping drivers active (SHUTDOWN must also be logic HIGH).
22 C1- passive Negative terminal of the voltage doubler charge-pump capacitor.
23 GND power_in Ground.
24 NC unconnected No connection.
25 VCC power_in +3.0V to +5.5V supply voltage.
26 V+ power_out Regulated +5.5V output generated by the charge pump.
27 NC unconnected No connection.
28 C1+ passive Positive terminal of the voltage doubler charge-pump capacitor.
29 C2+ passive Positive terminal of the inverting charge-pump capacitor.
30 NC unconnected No connection.
31 C2- passive Negative terminal of the inverting charge-pump capacitor.
32 V- power_out Regulated -5.5V output generated by the charge pump.
33 PAD passive Exposed thermal PAD on QFN package, recommended to connect to GND.

Key specifications

Parameter Value
Manufacturer MaxLinear
Package QFN-32-EP(5x5)
Category Interface ICs
Pins 33

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 voltage VCC -0.3 6 V 7
V+ voltage V+ -0.3 7 V absolute difference V+ and V- cannot exceed 13V 7
V+ + /V-/ V+ + /V-/ 13 V 7
ICC (DC VCC or GND current) ICC -100 100 mA 7
Input voltage TxIN, ONLINE, SHUTDOWN -0.3 6 V 7
Input voltage RxIN RxIN -25 25 V 7
Output voltage TxOUT TxOUT -13.2 13.2 V 7
Storage temperature -65 150 °C 7
Power dissipation 32-pin QFN 2352 mW derate 29.4mW/°C above +70°C 7
Operating temperature -40 85 °C SP3243EUER-L/TR, extended range 29
Supply current, AUTO-ONLINE 0.5 2 µA All RxIN open, ONLINE = GND, SHUTDOWN = VCC, VCC = 3.3V, TAMB = 25oC, TxIN = GND or VCC 8
Supply current, shutdown 0.5 2 µA SHUTDOWN = GND, VCC = 3.3V, TAMB = 25oC, TxIN = VCC or GND 8
Supply current, AUTO-ONLINE disabled 0.6 1 mA ONLINE = SHUTDOWN = Vcc, no load, VCC = 3.3V, TAMB = +25oC, TxIN = GND or VCC 8
Input logic threshold Low 0.8 V VCC = 3.3V or 5.0V, TxIN, ONLINE, SHUTDOWN 8
Input logic threshold High 2.4 V VCC = 3.3V or 5.0V, TxIN, ONLINE, SHUTDOWN 8
Input leakage current -1 0.01 1 µA TxIN, ONLINE, SHUTDOWN, TAMB = +25°C, VIN = 0V to VCC 8
Receiver output leakage current -10 0.05 10 µA Receivers disabled, VOUT = 0V to VCC 8
Output voltage Low 0.4 V IOUT = 1.6mA 8
Driver output voltage swing 5 5.4 V All driver outputs loaded with 3kΩ to GND, TAMB = +25oC 8
Driver output resistance 300 Ω VCC = V+ = V- = 0V, VOUT = ±2V 8
Driver output short-circuit current 35 60 mA VOUT = 0V 8
Driver output leakage current -25 25 µA VCC = 0V or 3.0V to 5.5V, VOUT = ±12V, drivers disabled 8
Receiver input voltage range -15 15 V 8
Receiver input threshold Low (VCC = 3.3V) 0.6 1.2 V VCC = 3.3V 8
Receiver input threshold Low (VCC = 5.0V) 0.8 1.5 V VCC = 5.0V 8
Receiver input threshold High (VCC = 3.3V) 1.5 2.4 V VCC = 3.3V 8
Receiver input threshold High (VCC = 5.0V) 1.8 2.4 V VCC = 5.0V 8
Receiver input hysteresis 0.3 V 8
Receiver input resistance 3 5 7 kΩ 8
STATUS output voltage Low 0.4 V IOUT = 1.6mA 9
Receiver threshold to drivers enabled tONLINE 350 µs Figure 20 9
Receiver threshold to STATUS High tSTSH 0.2 µs Figure 20 9
Receiver threshold to STATUS Low tSTSL 30 µs Figure 20 9
Maximum data rate (U) 1000 kbps RL = 3kΩ, CL = 250pF, one driver active 9
Receiver propagation delay tPHL tPHL 0.15 µs Receiver input to receiver output, CL = 150pF 9
Receiver propagation delay tPLH tPLH 0.15 µs Receiver input to receiver output, CL = 150pF 9
Receiver output enable time 200 ns Normal operation 9
Receiver output disable time 200 ns Normal operation 9
Driver skew (EH, EU) / tPHL - tPLH / 50 100 ns EH, EU 9
Receiver skew / tPHL - tPLH / 50 ns 9

CAD (KiCad official)

  • Symbol: SP3243EUER-L
  • Footprint: Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm
  • 3D model: QFN-32-EP(5x5) (KiCad packages3D, STEP)
  • 3D model files: sp3243euer-l-etched.step / sp3243euer-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sp3243euer-l.step / sp3243euer-l.glb are the bare package body.

Provenance

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

  • Datasheet: MaxLinear datasheet (30 pp, sha256 ea4b22b2d3fb360a, retrieved 2026-10-30, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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