# ISL32172EFVZ

**RENESAS** · Pre-ordered Chips · TSSOP-16

ISL32172EFVZ from RENESAS, in a TSSOP-16. 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 | DI1 | input | Driver input for channel 1; a low forces Y1 low and Z1 high, and a high forces Y1 high and Z1 low. |
| 2 | Y1 | output | Noninverting RS-422 transmitter output with ±16.5kV IEC61000-4-2 ESD protection, tri-statable and hot-plug protected. |
| 3 | Z1 | output | Inverting RS-422 transmitter output with ±16.5kV IEC61000-4-2 ESD protection, tri-statable and hot-plug protected. |
| 4 | EN | input | Active-high group driver output enable, internally pulled high to VCC; outputs are high impedance when EN is low and EN̅ is high. |
| 5 | Z2 | output | Inverting RS-422 transmitter output for channel 2 with ±16.5kV IEC61000-4-2 ESD protection. |
| 6 | Y2 | output | Noninverting RS-422 transmitter output for channel 2 with ±16.5kV IEC61000-4-2 ESD protection. |
| 7 | DI2 | input | Driver input for channel 2; a low forces Y2 low and Z2 high, and a high forces Y2 high and Z2 low. |
| 8 | GND | power_in | Ground connection for the device. |
| 9 | DI3 | input | Driver input for channel 3; a low forces Y3 low and Z3 high, and a high forces Y3 high and Z3 low. |
| 10 | Y3 | output | Noninverting RS-422 transmitter output for channel 3 with ±16.5kV IEC61000-4-2 ESD protection. |
| 11 | Z3 | output | Inverting RS-422 transmitter output for channel 3 with ±16.5kV IEC61000-4-2 ESD protection. |
| 12 | ~{EN} | input | Active-low group driver output enable, internally pulled high to VCC; outputs are enabled when EN̅ is low and EN is high. |
| 13 | Z4 | output | Inverting RS-422 transmitter output for channel 4 with ±16.5kV IEC61000-4-2 ESD protection. |
| 14 | Y4 | output | Noninverting RS-422 transmitter output for channel 4 with ±16.5kV IEC61000-4-2 ESD protection. |
| 15 | DI4 | input | Driver input for channel 4; a low forces Y4 low and Z4 high, and a high forces Y4 high and Z4 low. |
| 16 | VCC | power_in | System power supply input, 3.0V to 5.5V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | RENESAS |
| Package | TSSOP-16 |
| Category | Interface ICs |
| Pins | 16 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating temperature range (ISL32x7xEF) |  | -40 |  | 125 | °C | ISL32x7xEF | 6 |
| Supply voltage range (VCC) | VCC | 3 |  | 5.5 | V | System power supply input | 5 |
| VCC to GND | VCC |  |  | 7 | V |  | 6 |
| Input voltages DI, EN (all varieties) |  | -0.3 |  | 7 | V |  | 6 |
| Output voltages Y, Z |  | -0.5 |  | 7 | V |  | 6 |
| Output current Y, Z (per output, continuous) |  |  |  | 100 | mA | TJ ≤ 125°C | 6 |
| Maximum junction temperature (plastic package) |  |  |  | 150 | °C |  | 6 |
| Maximum storage temperature range |  | -65 |  | 150 | °C |  | 6 |
| Differential VOUT, no load | VOD | 2.5 |  |  | V | No load | 6 |
| Differential VOUT, RS-422 load, VCC ≥ 3V | VOD | 2 | 2.6 |  | V | RL = 100Ω (RS-422), VCC ≥ 3V | 6 |
| Differential VOUT, RS-422 load, VCC ≥ 4.5V | VOD | 3 | 4 |  | V | RL = 100Ω (RS-422), VCC ≥ 4.5V | 6 |
| Single-ended VOUT (Y or Z) high | VO | 2.4 | 2.7 |  | V | IO = -20mA, VOH | 6 |
| Single-ended VOUT (Y or Z) low | VO |  | 0.2 | 0.4 | V | IO = 20mA, VOL | 6 |
| Change in magnitude of driver differential VOUT for complementary output states | VOD |  | 0.01 | 0.2 | V | RL = 100Ω (see Figure 4) | 6 |
| Driver common-mode VOUT | VOC |  | 2.6 | 3 | V | RL = 100Ω (see Figure 4) | 6 |
| Change in magnitude of driver common-mode VOUT for complementary output states | VOC |  | 0.01 | 0.2 | V | RL = 100Ω (see Figure 4) | 6 |
| Input high voltage (logic pins), DI and ENs | VIH1 | 2.2 |  |  | V | All Transmitters and ISL32179E, if VL = VCC; 3.0V ≤ VCC ≤ 3.6V, DI and ENs | 6 |
| Input high voltage (logic pins), DI | VIH2 | 2.7 |  |  | V | 4.5V≤VCC ≤ 5.5V, DI | 6 |
| Input high voltage (logic pins), ENs | VIH2E | 2.4 |  |  | V | 4.5V≤VCC ≤ 5.5V, ENs | 6 |
| Input low voltage (logic pins) | VIL1 |  |  | 0.8 | V | All Transmitters and ISL32179E, if VL = VCC | 6 |
| Logic input current, DIX | IIN1 | -1 |  | 1 | µA | DIX = 0V or VCC | 7 |
| Logic input current, SP, EN, EN, ENX, SHDNEN | IIN2 | -15 | 9 | 15 | µA | SP, EN, EN, ENX, SHDNEN = 0V or VCC | 7 |
| Output leakage current (Y, Z) | IOZ | -10 |  | 10 | µA | EN = 0, VCC = 0V to 5.5V, -0.25 ≤ VO ≤ 6V | 7 |
| Output leakage current (Y, Z), +25°C | IOZ | -8 |  | 8 | nA | EN = 0, VCC = 3V to 5.5V, VO = 0V to VCC | 7 |
| Output leakage current (Y, Z), Note 18 range | IOZ | -30 |  | 30 | nA | (Note 18): Temperature range is -20°C to +40°C | 7 |
| Driver short-circuit current, VY or VZ = 0V | IOSD1 |  |  | 150 | mA | EN = 1, VY or VZ = 0V (Note 9) | 7 |
| Driver short-circuit current, VY or VZ = VCC | IOSD1 |  |  | 200 | mA | EN = 1, VY or VZ = VCC (Note 9) | 7 |
| No-load supply current | ICC |  | 0.6 | 0.8 | mA | DI = 0V or VCC, EN = 1 | 7 |
| Maximum data rate | fMAX | 32 | 50 |  | Mbps | VOD = 1.5V, CD = 100pF (see Figure 7) | 8 |
| Driver single-ended output delay | tPLH, tPHL | 3 | 8 | 15 | ns | RDIFF = 100Ω, CD = 50pF (see Figure 5) | 8 |
| Driver single-ended output skew | tSSK |  | 1 | 3.5 | ns | RDIFF = 100Ω, CD = 50pF (see Figure 5) | 8 |
| Channel-to-channel output delay skew | tSKCC |  | 3 | 5.5 | ns | (Figure 5, Note 13) | 8 |
| Part-to-part output delay skew | tSKPP |  |  | 8 | ns | (Figure 5, Note 10) | 8 |
| Driver differential output skew | tDSK |  | 0.5 | 2 | ns | RDIFF = 100Ω, CD = 50pF (see Figure 5) | 8 |
| Driver differential rise or fall time | tR, tF |  | 7 | 12 | ns | RDIFF = 100Ω, CD = 50pF (see Figure 5) | 8 |
| Driver enable to output high | tZH |  |  | 20 | ns | SW = GND (see Figure 6, Note 14) | 8 |
| Driver enable to output low | tZL |  |  | 20 | ns | SW = VCC (see Figure 6, Note 14) | 8 |
| Driver disable from output high | tHZ |  |  | 20 | ns | SW = GND (see Figure 6) | 8 |
| Driver disable from output low | tLZ |  |  | 20 | ns | SW = VCC (see Figure 6) | 8 |
| Thermal resistance, junction to ambient, 16 Ld TSSOP | θJA |  | 105 |  | °C/W | Note 5 | 6 |

## CAD (KiCad official)

- Symbol: `ISL32172EFVZ`
- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`
- 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files: `isl32172efvz-etched.step` / `isl32172efvz-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `isl32172efvz.step` / `isl32172efvz.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [RENESAS datasheet](docs/isl32172efvz-datasheet.pdf) (21 pp, sha256 `0daa514ba374a50f`, retrieved 2026-10-28, tier: lcsc)
- **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](docs/isl32172efvz-datasheet.pdf)