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SP3243ECA-L

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MaxLinear Pre-ordered Chips, SSOP-28-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentinterface icssp3243eca-lfactory-2.0.0extractor-text

Verified SP3243ECA-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, 28 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: SP3243ECA-L · SSOP-28-208mil · 28 pins
  • ✓copper: 28 copper pads, none touching another net
  • ✓datasheet: all 28 pin names found in the 30-page datasheet
  • ✓distributor: lcsc C1544717, digikey 1016-1120-5-ND, mouser 701-SP3243ECA-L
  • ✓family: SSOP-28_5.3x10.2mm_P0.65mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-dpz9n5ft/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: 28 pins = 28 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 28 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ sp3243eca-l.kicad_sym✓ sp3243eca-l.kicad_mod✓ sp3243eca-l.step
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Ray Publish 0.1.0 c89eee4 10d ago

SP3243ECA-L

MaxLinear · Pre-ordered Chips · SSOP-28-208mil

SP3243ECA-L from MaxLinear, in a SSOP-28-208mil. 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 C2+ passive Positive terminal of the inverting charge-pump capacitor; the charge pump runs from VCC with 0.1µF capacitors for 3.3V operation.
2 C2- passive Negative terminal of the inverting charge-pump capacitor; minimum recommended charge-pump capacitor values are listed in Table 7.
3 V- power_out Regulated -5.5V output generated by the charge pump, generated separately from VCC.
4 R1IN input RS-232 receiver input; RxIN is rated ±15V in the Absolute Maximum Ratings.
5 R2IN input RS-232 receiver input; RxIN is rated ±15V in the Absolute Maximum Ratings.
6 R3IN input RS-232 receiver input; RxIN is rated ±15V in the Absolute Maximum Ratings.
7 R4IN input RS-232 receiver input; RxIN is rated ±15V in the Absolute Maximum Ratings.
8 R5IN input RS-232 receiver input; RxIN is rated ±15V in the Absolute Maximum Ratings.
9 T1OUT output RS-232 driver output; TxOUT is rated ±13.2V in the Absolute Maximum Ratings.
10 T2OUT output RS-232 driver output; TxOUT is rated ±13.2V in the Absolute Maximum Ratings.
11 T3OUT output RS-232 driver output; TxOUT is rated ±13.2V in the Absolute Maximum Ratings.
12 T3IN input TTL/CMOS driver input; TxIN is rated -0.3V to 6.0V in the Absolute Maximum Ratings.
13 T2IN input TTL/CMOS driver input; TxIN is rated -0.3V to 6.0V in the Absolute Maximum Ratings.
14 T1IN input TTL/CMOS driver input; TxIN is rated -0.3V to 6.0V in the Absolute Maximum Ratings.
15 R5OUT output TTL/CMOS receiver output; RxOUT is rated -0.3V to VCC+0.3V in the Absolute Maximum Ratings.
16 R4OUT output TTL/CMOS receiver output; RxOUT is rated -0.3V to VCC+0.3V in the Absolute Maximum Ratings.
17 R3OUT output TTL/CMOS receiver output; RxOUT is rated -0.3V to VCC+0.3V in the Absolute Maximum Ratings.
18 R2OUT output TTL/CMOS receiver output; RxOUT is rated -0.3V to VCC+0.3V in the Absolute Maximum Ratings.
19 R1OUT output TTL/CMOS receiver output; RxOUT is rated -0.3V to VCC+0.3V in the Absolute Maximum Ratings.
20 R2OUT output Non-inverting receiver-2 output that remains active in shutdown; it is printed as R2OUT in the pin table, the same name as pin 18.
21 STATUS output TTL/CMOS output indicating online and shutdown status; it goes LOW when the device is shut down and is rated -0.3V to VCC+0.3V.
22 SHUTDOWN input Apply logic LOW to shut down the drivers and charge pump, overriding all AUTO ON-LINE circuitry and ONLINE; the input is rated -0.3V to 6.0V.
23 ONLINE input Apply logic HIGH to override AUTO ON-LINE circuitry and keep drivers active (SHUTDOWN must also be logic HIGH); the input is rated -0.3V to 6.0V.
24 C1- passive Negative terminal of the voltage doubler charge-pump capacitor.
25 GND power_in Ground reference for the device.
26 VCC power_in Supply voltage of +3.0V to +5.5V; VCC is rated -0.3V to 6.0V in the Absolute Maximum Ratings.
27 V+ power_out Regulated +5.5V output generated by the charge pump; V+ is rated -0.3V to 7.0V in the Absolute Maximum Ratings.
28 C1+ passive Positive terminal of the voltage doubler charge-pump capacitor.

Key specifications

Parameter Value
Manufacturer MaxLinear
Package SSOP-28-208mil
Category Interface ICs
Pins 28

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 (absolute maximum) VCC -0.3 6 V 7
V+ supply (absolute maximum) V+ -0.3 7 V 7
V- supply (absolute maximum) V- 0.3 -7 V 7
V+ + /V-/ (absolute maximum) V+ + /V-/ 13 V 7
DC VCC or GND current (absolute maximum) ICC -100 100 mA 7
Input voltage TxIN, ONLINE, SHUTDOWN (absolute maximum) -0.3 6 V 7
Input voltage RxIN (absolute maximum) -15 15 V 7
Output voltage TxOUT (absolute maximum) -13.2 13.2 V 7
Output voltage RxOUT, STATUS (absolute maximum) -0.3 V 7
Storage temperature (absolute maximum) -65 150 °C 7
Power dissipation per package, 28-pin SSOP 900 mW derate 11.2mW/°C above +70°C 7
ESD HBM, driver outputs and receiver inputs -15 15 kV Human Body Model 7
ESD IEC61000-4-2 air discharge, driver outputs and receiver inputs -15 15 kV IEC61000-4-2 Air Discharge, level 4 7
ESD IEC61000-4-2 contact discharge, driver outputs and receiver inputs -8 8 kV IEC61000-4-2 Contact Discharge, level 4 7
Supply voltage VCC (operating range) VCC 3 5.5 V TAMB = TMIN to TMAX, C1 - C4 = 0.1µF 8
Supply current, AUTO ON-LINE 1 10 µA All RxIN open, ONLINE = GND, SHUTDOWN = VCC, VCC = 3.3V, TAMB = 25oC, TxIN = GND or VCC 8
Supply current, shutdown 1 10 µA SHUTDOWN = GND, VCC = 3.3V, TAMB = 25oC, TxIN = VCC or GND 8
Supply current, AUTO ON-LINE disabled 0.3 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
Output leakage current (receivers) -10 0.05 10 µA Receivers disabled, VOUT = 0V to VCC 8
Output voltage Low (RxOUT) 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, drivers disabled -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 High, VCC = 3.3V 1.5 2.4 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 = 5.0V 1.8 2.4 V VCC = 5.0V 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 19 9
Receiver positive or negative threshold to STATUS High tSTSH 0.2 µs Figure 19 9
Receiver positive or negative threshold to STATUS Low tSTSL 30 µs Figure 19 9
Maximum data rate (120 kbps variant) 120 kbps RL = 3kΩ, CL = 1000pF, 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 9
Receiver output enable time 200 ns Normal operation 9
Receiver output disable time 200 ns Normal operation 9
Driver skew (E, EB) / tPHL - tPLH / 100 500 ns 9
Receiver skew / tPHL - tPLH / 50 ns 9
Transition-region slew rate (E, EB) 6 30 V/µs 9

CAD (KiCad official)

  • Symbol: SP3243ECA-L
  • Footprint: Package_SO:SSOP-28_5.3x10.2mm_P0.65mm
  • 3D model: SSOP-28-208mil (KiCad packages3D, STEP)
  • 3D model files: sp3243eca-l-etched.step / sp3243eca-l-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sp3243eca-l.step / sp3243eca-l.glb are the bare package body.

Provenance

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

  • Datasheet: MaxLinear datasheet (30 pp, sha256 3ad9f6144fdcd49d, 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