component
SP330EEY-L
Public Made by Adomby adom
MaxLinear RS232 ICs, TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
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PCB Footprint
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Datasheet
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README
markdownSP330EEY-L
MaxLinear · RS232 ICs · TSSOP-24
SP330EEY-L from MaxLinear, in a TSSOP-24. 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 charge pump capacitor C1, 0.1µF, used with the internal charge pump. |
| 2 | VL | power_in | Logic supply for TTL inputs and outputs; VL = +1.65V to +5.5V, or tie to VCC. |
| 3 | VCC | power_in | Main supply, VCC = +3.0V to +5.5V; bypass to ground with 1.0µF. |
| 4 | C1- | passive | Negative lead of charge pump capacitor C1. |
| 5 | GND | power_in | Ground reference for the device. |
| 6 | T1OUT, B/Z | bidirectional | RS-232 transmitter 1 output; RS-485 full duplex driver Z (negative output); RS-485 half duplex B/Z negative input/output. |
| 7 | T2OUT, A/Y | bidirectional | RS-232 transmitter 2 output; RS-485 full duplex driver Y (positive output); RS-485 half duplex A/Y positive input/output. |
| 8 | R1OUT | output | RS-232 receiver 1 output, logic levels referenced to VL. |
| 9 | R2OUT, RO | output | RS-232 receiver 2 output; RS-485/422 receiver TTL output, referenced to VL. |
| 10 | NC | unconnected | Pin 10 is blank in the datasheet pin description table; no function is stated. |
| 11 | SHDN | input | Low-power shutdown mode when low. |
| 12 | SLEW | input | Data rate limited to 250kbps when low; full speed when high. |
| 13 | RS-485/RS-232 | input | Selects RS-485 mode when high and RS-232 mode when low. |
| 14 | HALF/FULL | input | In RS-485 mode, selects half duplex when low and full duplex when high. |
| 15 | GND | power_in | Ground reference for the device. |
| 16 | R2IN, A | input | RS-232 receiver 2 input (5kΩ pull-down in RS-232 mode); RS-485/422 receiver A positive input, high impedance (>96kΩ). |
| 17 | R1IN, B | input | RS-232 receiver 1 input (5kΩ pull-down in RS-232 mode); RS-485/422 receiver B negative input, high impedance (>96kΩ). |
| 18 | RE | input | Receiver enable, active low; the receiver is disabled when high. Figure notes a 300kΩ internal pull-down on this pin. |
| 19 | T2IN, DE | input | RS-232 transmitter 2 input; RS-485/422 driver enable, driver enabled when high. |
| 20 | T1IN, DI | input | RS-232 transmitter 1 input; RS-485/422 driver TTL data input. |
| 21 | V- | power_out | Charge pump negative supply; connect 0.1µF from this pin to ground. |
| 22 | C2- | passive | Negative lead of charge pump capacitor C2. |
| 23 | C2+ | passive | Positive lead of charge pump capacitor C2, 0.1µF. |
| 24 | V+ | power_out | Charge pump positive supply; connect 0.1µF from this pin to ground. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | MaxLinear |
| Package | TSSOP-24 |
| Category | Interface |
| Pins | 24 |
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 range (VCC) operating | VCC | 3 | 5.5 | V | 3 | ||
| Logic interface supply voltage (VL) operating | VL | 1.65 | 5.5 | V | 8 | ||
| Operating temperature range | -40 | 85 | °C | 1 | |||
| Supply voltage VCC (absolute maximum) | VCC | -0.3 | 6 | V | 2 | ||
| Voltage at TTL input pins | -0.3 | 6 | V | 2 | |||
| Receiver input voltage (from ground) | -18 | 18 | V | 2 | |||
| Driver output voltage (from ground) | -18 | 18 | V | 2 | |||
| Storage temperature range | -65 | 150 | °C | 2 | |||
| Lead temperature | 300 | °C | soldering, 10s | 2 | |||
| Power dissipation | 900 | mW | 24-pin TSSOP, derate 26.0mW/°C above +70°C | 2 | |||
| Power dissipation derating above +70°C | 26 | mW/°C | above +70°C | 2 | |||
| ESD HBM (TX output and RX input pins) | -15 | 15 | kV | Human Body Model | 2 | ||
| ESD HBM (all other pins) | -3 | 3 | kV | Human Body Model | 2 | ||
| ESD IEC 61000-4-2 airgap (TX output and RX input pins) | -15 | 15 | kV | IEC 61000-4-2 airgap discharge | 2 | ||
| ESD IEC 61000-4-2 contact (TX output and RX input pins) | -8 | 8 | kV | IEC 61000-4-2 contact discharge | 2 | ||
| Supply current (RS-232 mode) | ICC | 1 | 2.5 | mA | No load, Idle inputs, RS-485/RS-232 = 0V | 3 | |
| Supply current (RS-485/422 mode) | ICC | 1.8 | 4.5 | mA | No load, Idle inputs, RS-485/RS-232 = VCC | 3 | |
| VCC shutdown current | ICC | 0.01 | 1 | µA | SHDN = 0V, Receiver inputs open or grounded | 3 | |
| Logic input leakage current | IINL | -1 | 0.01 | 1 | µA | 3 | |
| Logic input pulldown current | IINPD | 10 | 50 | µA | RE pin 18, VIN = VL | 3 | |
| Logic input hysteresis | VHYS | 200 | mV | 3 | |||
| Receiver output voltage low | VOL | 0.4 | V | IOUT = 1.5mA | 3 | ||
| Receiver output short circuit current | IOSS | -85 | 20 | 85 | mA | 0 VO VL | 3 |
| Receiver output leakage current | IOZ | -1 | 0.05 | 1 | µA | 0 VO VL, Receivers disabled | 3 |
| RS-232 receiver input voltage range | VIN | -15 | 15 | V | 4 | ||
| RS-232 input threshold low (VCC = 3.3V) | VIL | 0.6 | 1.2 | V | VCC = 3.3V | 4 | |
| RS-232 input threshold low (VCC = 5.0V) | VIL | 0.8 | 1.5 | V | VCC = 5.0V | 4 | |
| RS-232 input threshold high (VCC = 3.3V) | VIH | 1.5 | 2 | V | VCC = 3.3V | 4 | |
| RS-232 input threshold high (VCC = 5.0V) | VIH | 1.8 | 2.4 | V | VCC = 5.0V | 4 | |
| RS-232 input hysteresis | VHYS | 0.5 | V | 4 | |||
| RS-232 input resistance | RIN | 3 | 5 | 7 | k | -15V VIN +15V | 4 |
| RS-232 output voltage swing | VOUT | -5.5 | 5 | 5.5 | V | Outputs loaded with 3k to Gnd | 4 |
| Output power-off impedance | ROFF | 300 | Ω | VCC = 0V, VOUT = ±2V | 4 | ||
| Output short circuit current | ISC | -60 | 30 | 60 | mA | VOUT = 0V | 4 |
| Output leakage current (RS-232 TX, shutdown) | IO | -125 | 125 | µA | SHDN = 0V, VOUT = ±9V, VCC = 0V or 5.5V | 4 | |
| RS-485 receiver input resistance | RIN | 96 | k | -7V VCM +12V | 5 | ||
| Receiver input current (VIN = +12V) | IIN | 125 | µA | VIN = +12V | 5 | ||
| Receiver input current (VIN = -7V) | IIN | -100 | µA | VIN = -7V | 5 | ||
| Receiver differential threshold voltage | VTH | -200 | -125 | -50 | mV | -7V VCM +12V | 5 |
| Receiver input hysteresis | VTH | 25 | mV | 5 | |||
| Differential driver output (RS-485, RL = 54) | VOD | 1.5 | V | RL = 54 (RS-485), Figure 4 | 5 | ||
| Differential driver output over common mode | VOD | 1.5 | V | -7V VCM +12V, Figure 5 | 5 | ||
| Differential driver output (RS-422, RL = 100) | VOD | 2 | V | RL = 100 (RS-422), Figure 4 | 5 | ||
| Change in magnitude of differential output voltage | VOD | 0.2 | V | RL = 54 or 100, Figure 4 | 5 | ||
| Driver common mode output voltage | VCM | 3 | V | RL = 54 or 100, Figure 4 | 5 | ||
| Change in magnitude of common mode output voltage | VCM | 0.2 | V | RL = 54 or 100, Figure 4 | 5 | ||
| Driver output short circuit current | IOSD | -250 | 250 | mA | -7V VY or VZ +12V, Figure 6 | 5 | |
| Driver output leakage current (RS-485) | IO | -125 | 125 | µA | DE = 0V or SHDN = 0V, VY or VZ = -7V or +12V, VCC = 0V or 5.5V | 5 | |
| Enable from shutdown | tENABLE | 1000 | ns | 6 | |||
| Enable to shutdown | tSHUTDOWN | 1000 | ns | 6 | |||
| RS-232 250kbps transition slew rate | tSHL, tSLH | 6 | 30 | V/µs | VCC = +3.3V, RL = 3k to 7k, CL = 150pF to 2500pF, TA = 25°C, Figure 8 | 6 | |
| RS-232 250kbps driver propagation delay | tDHL, tDLH | 1400 | ns | RL = 3k, CL = 2500pF, Figure 8 | 6 | ||
| RS-232 1Mbps transition slew rate | tSHL, tSLH | 13 | 150 | V/µs | VCC = +3.3V, RL = 3k to 7k, CL = 150pF to 1000pF, Figure 8 | 6 | |
| RS-232 1Mbps driver propagation delay | tDHL, tDLH | 300 | ns | RL = 3k, CL = 1000pF, Figure 8 | 6 | ||
| RS-485 250kbps driver propagation delay | tDPHL, tDPLH | 500 | 1000 | ns | RL = 54, CL = 50pF, Figure 10 | 7 | |
| RS-485 250kbps receiver propagation delay | tRPHL, tRPLH | 50 | 150 | ns | CL = 15pF, Figure 9 | 7 | |
| RS-485 20Mbps driver propagation delay | tDPHL, tDPLH | 30 | 100 | ns | RL = 54, CL = 50pF, Figure 10 | 7 | |
| RS-485 20Mbps driver rise and fall time | tDR, tDF | 10 | 20 | ns | 7 | ||
| RS-485 driver output enable time | tDZH, tDZL | 200 | ns | RL = 500, CL = 50pF, Figure 12 | 7 |
CAD (KiCad official)
- Symbol:
SP330EEY-L - Footprint:
Package_SO:TSSOP-24_4.4x7.8mm_P0.65mm - 3D model: TSSOP-24 (KiCad packages3D, STEP)
- 3D model files:
sp330eey-l-etched.step/sp330eey-l-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sp330eey-l.step/sp330eey-l.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: MaxLinear datasheet (23 pp, sha256
cc200df296f1abe1, 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).