# SP213EHCA-L

**MaxLinear** · Pre-ordered Chips · SSOP-28

SP213EHCA-L from MaxLinear, in a SSOP-28. 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 | T3 OUT | output | RS-232 driver 3 output, ±5V minimum swing into 3kΩ, short-circuit protected, ±15kV ESD (HBM). |
| 2 | T1 OUT | output | RS-232 driver 1 output, ±5V minimum swing into 3kΩ, short-circuit protected, ±15kV ESD (HBM). |
| 3 | T2 OUT | output | RS-232 driver 2 output, ±5V minimum swing into 3kΩ, short-circuit protected, ±15kV ESD (HBM). |
| 4 | R2 IN | input | RS-232 receiver 2 input, ±25V input range, 5kΩ typical pull-down, ±15kV ESD (HBM). |
| 5 | R2 OUT | tri_state | TTL/CMOS receiver 2 output, tri-stated when EN is low or in shutdown. |
| 6 | T2 IN | input | TTL/CMOS driver 2 input with internal 400kΩ pull-up to VCC. |
| 7 | T1 IN | input | TTL/CMOS driver 1 input with internal 400kΩ pull-up to VCC. |
| 8 | R1 OUT | tri_state | TTL/CMOS receiver 1 output, tri-stated when EN is low or in shutdown. |
| 9 | R1 IN | input | RS-232 receiver 1 input, ±25V input range, 5kΩ typical pull-down, ±15kV ESD (HBM). |
| 10 | GND | power_in | Ground. |
| 11 | VCC | power_in | +5V supply input, 4.50V to 5.50V. |
| 12 | C1+ | passive | Charge pump capacitor C1 positive terminal, 0.1µF. |
| 13 | V+ | power_out | Charge pump positive supply output, about +10V, with 0.1µF storage capacitor. |
| 14 | C1- | passive | Charge pump capacitor C1 negative terminal, 0.1µF. |
| 15 | C2+ | passive | Charge pump capacitor C2 positive terminal, 0.1µF. |
| 16 | C2- | passive | Charge pump capacitor C2 negative terminal, 0.1µF. |
| 17 | V- | power_out | Charge pump negative supply output, about -10V, with 0.1µF storage capacitor. |
| 18 | R5 IN | input | RS-232 receiver 5 input, ±25V input range, remains active during shutdown (wake-up). |
| 19 | R5 OUT | tri_state | TTL/CMOS receiver 5 output, remains active during shutdown unless disabled by EN. |
| 20 | T3 IN | input | TTL/CMOS driver 3 input with internal 400kΩ pull-up to VCC. |
| 21 | T4 IN | input | TTL/CMOS driver 4 input with internal 400kΩ pull-up to VCC. |
| 22 | R4 OUT | tri_state | TTL/CMOS receiver 4 output, remains active during shutdown unless disabled by EN. |
| 23 | R4IN | input | RS-232 receiver 4 input, ±25V input range, remains active during shutdown (wake-up). |
| 24 | EN | input | Receiver enable, active high; +5V enables receiver outputs, 0V tri-states them. |
| 25 | SD | input | Shutdown control, active low; 0V shuts down the charge pump and drivers, reducing supply current to 1µA typical. |
| 26 | R3 OUT | tri_state | TTL/CMOS receiver 3 output, tri-stated when EN is low or in shutdown. |
| 27 | R3 IN | input | RS-232 receiver 3 input, ±25V input range, 5kΩ typical pull-down, ±15kV ESD (HBM). |
| 28 | T4 OUT | output | RS-232 driver 4 output, ±5V minimum swing into 3kΩ, short-circuit protected, ±15kV ESD (HBM). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | MaxLinear |
| Package | SSOP-28 |
| 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 | VCC |  |  | 6 | V |  | 6 |
| V+ supply voltage | V+ |  |  | 13.2 | V | min printed as VCC - 0.3 | 6 |
| V- supply voltage | V- |  |  | 13.2 | V |  | 6 |
| Input voltage TIN | TIN | -0.3 |  |  | V | max printed VCC +0.3 | 6 |
| Input voltage RIN | RIN | -25 |  | 25 | V | printed ±25 | 6 |
| Output voltage ROUT | ROUT | -0.3 |  |  | V | max printed VCC + 0.3 | 6 |
| Power dissipation 28-pin SSOP |  |  |  | 900 | mW | derate 11.2mW/°C above +70°C | 6 |
| ESD HBM |  | -15 |  | 15 | kV | Driver outputs and receiver inputs | 6 |
| ESD IEC61000-4-2 Air |  | -15 |  | 15 | kV | Driver outputs and receiver inputs, Level 4 | 6 |
| ESD IEC61000-4-2 Contact |  | -8 |  | 8 | kV | Driver outputs and receiver inputs, Level 4 | 6 |
| Logic threshold VIL | VIL |  |  | 0.8 | V | TTL inputs TIN, EN, SD | 7 |
| Logic threshold VIH | VIH | 2 |  |  | V | TTL inputs TIN, EN, SD | 7 |
| Logic pull-up current |  |  | 15 | 200 | µA | TIN = 0V | 7 |
| Maximum transmission rate |  | 1 |  |  | Mbps | CL = 1000pF, RL = 3kΩ | 7 |
| TTL output VOL | VOL |  |  | 0.4 | V | IOUT = 3.2mA, VCC = 5V | 7 |
| TTL output VOH | VOH | 3.5 |  |  | V | IOUT = -1.0mA | 7 |
| TTL output leakage current |  |  | 0.05 | 10 | µA | 0V ≤ VOUT ≤ VCC; EN = VCC, TA = +25ºC; max printed ±10 | 7 |
| Output voltage swing |  | -5 | 8.7 | 5 | V | All transmitter outputs loaded with 3kΩ to ground; printed ±5 min, ±8.7 typ | 7 |
| Output resistance |  | 300 |  |  | Ω | VCC = 0V, VOUT = ±2V | 7 |
| Output short circuit current |  |  | 25 |  | mA | Infinite Duration, VOUT = 0V; printed ±25 | 7 |
| RS-232 input voltage range |  | -25 |  | 25 | V | TA = 25°C | 7 |
| Input voltage threshold low |  | 0.8 | 1.2 |  | V | VCC = 5V, TA = 25°C | 7 |
| Input voltage threshold high |  |  | 1.7 | 2.8 | V | VCC = 5V, TA = 25°C | 7 |
| Hysteresis |  | 0.2 | 0.5 | 1 | V | VCC = 5V | 7 |
| RS-232 input resistance |  | 3 | 5 | 7 | kΩ | VIN = ±15V, TA = 25°C | 7 |
| Driver propagation delay |  |  |  | 250 | ns | TTL to RS-232 | 7 |
| Receiver propagation delay |  |  | 200 | 500 | ns | RS-232 to TTL | 7 |
| Instantaneous slew rate |  |  |  | 150 | V/µs | CL = 50pF, RL = 7kΩ, TA = 25°C, from ±3V | 7 |
| Transition time |  |  |  | 800 | ns | CL = 2500pF, RL = 3kΩ, measured from -3V to +3V or +3V to -3V | 7 |
| Output enable time |  |  |  | 400 | ns |  | 7 |
| Output disable time |  |  |  | 250 | ns |  | 7 |
| Supply voltage VCC | VCC | 4.5 | 5 | 5.5 | V |  | 8 |
| Supply current, no load | ICC |  | 3 | 8 | mA | No load: VCC = ±10% | 8 |
| Supply current, all transmitters loaded | ICC |  | 23 |  | mA | All transmitters RL = 3kΩ | 8 |
| Shutdown current |  |  | 1 | 10 | µA | TA = 25°C | 8 |
| Operating temperature, Commercial |  | 0 |  | 70 | ºC | Commercial, _C | 8 |
| Storage temperature |  | -65 |  | 150 | ºC |  | 8 |

## CAD (KiCad official)

- Symbol: `SP213EHCA-L`
- Footprint: `Package_SO:SSOP-28_5.3x10.2mm_P0.65mm`
- 3D model: SSOP-28 (KiCad packages3D, STEP)
- 3D model files: `sp213ehca-l-etched.step` / `sp213ehca-l-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sp213ehca-l.step` / `sp213ehca-l.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [MaxLinear datasheet](docs/sp213ehca-l-datasheet.pdf) (19 pp, sha256 `d4d082ac49fb5c29`, retrieved 2026-10-26, 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](docs/sp213ehca-l-datasheet.pdf)