component
ISL81487IBZ
Public Made by Adomby adom
RENESAS Pre-ordered Chips, SOIC-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownISL81487IBZ
RENESAS · Pre-ordered Chips · SOIC-8
ISL81487IBZ from RENESAS, in a SOIC-8. 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 | RO | output | Receiver output, high if A > B by at least 0.2V, low if A < B by 0.2V or more, and high if A and B are floating; three-state when RE is high. |
| 2 | RE | input | Active-low receiver output enable: RO is enabled when RE is low and high impedance when RE is high (logic levels VIH 2V min, VIL 0.8V max). |
| 3 | DE | input | Driver output enable: driver outputs Y and Z are enabled by bringing DE high and are high impedance when DE is low. |
| 4 | DI | input | Driver input: a low forces Y low and Z high, a high forces Y high and Z low. |
| 5 | GND | power_in | Ground connection. |
| 6 | A/Y | bidirectional | RS-485/422 level noninverting receiver input and noninverting driver output; input (A) if DE = 0, output (Y) if DE = 1, with -8V to +12.5V absolute maximum. |
| 7 | B/Z | bidirectional | RS-485/422 level inverting receiver input and inverting driver output; input (B) if DE = 0, output (Z) if DE = 1, with -8V to +12.5V absolute maximum. |
| 8 | VCC | power_in | System power supply input, 4.5V to 5.5V (7V absolute maximum), with a 0.1µF bypass capacitor shown in the typical circuit. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | RENESAS |
| Package | SOIC-8 |
| Category | Interface ICs |
| Pins | 8 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Driver Differential VOUT (no load) | VOD1 | 5.5 | V | Full; printed max VCC | 4 | ||
| Driver Differential VOUT (with load) RS-422 | VOD2 | 2 | 3 | V | R = 50Ω (RS-422), Figure 1, Full | 4 | |
| Driver Differential VOUT (with load) RS-485 | VOD2 | 1.5 | 2.3 | 5 | V | R = 27Ω (RS-485), Figure 1, Full | 4 |
| Change in Magnitude of Driver Differential VOUT | ΔVOD | 0.01 | 0.2 | V | R = 27Ω or 50Ω, Figure 1, Full | 4 | |
| Driver Common-Mode VOUT | VOC | 3 | V | R = 27Ω or 50Ω, Figure 1, Full | 4 | ||
| Change in Magnitude of Driver Common-Mode VOUT | ΔVOC | 0.01 | 0.2 | V | R = 27Ω or 50Ω, Figure 1, Full | 4 | |
| Logic Input High Voltage | VIH | 2 | V | DE, DI, RE, Full | 4 | ||
| Logic Input Low Voltage | VIL | 0.8 | V | DE, DI, RE, Full | 4 | ||
| Logic Input Current | IIN1 | -2 | 2 | µA | DE, DI, RE, Full | 4 | |
| Input Current A/Y, B/Z | IIN2 | 140 | µA | DE = 0V, VCC = 4.5 to 5.5V, VIN = 12V, Full | 4 | ||
| Input Current A/Y, B/Z | IIN2 | -120 | µA | DE = 0V, VCC = 4.5 to 5.5V, VIN = -7V, Full | 4 | ||
| Input Current A/Y, B/Z | IIN2 | 180 | µA | DE = 0V, VCC = 0V, VIN = 12V, Full | 4 | ||
| Input Current A/Y, B/Z | IIN2 | -100 | µA | DE = 0V, VCC = 0V, VIN = -7V, Full | 4 | ||
| Receiver Differential Threshold Voltage | VTH | -0.2 | 0.2 | V | -7V ≤ VCM ≤ 12V, Full | 4 | |
| Receiver Input Hysteresis | ΔVTH | 70 | mV | VCM = 0V, 25°C | 4 | ||
| Receiver Output High Voltage | VOH | 3.5 | V | IO = -4mA, VID = 200mV, Full | 4 | ||
| Receiver Output Low Voltage | VOL | 0.4 | V | IO = -4mA, VID = 200mV, Full | 4 | ||
| Three-State Receiver Output Current | IOZR | 1 | µA | 0.4V ≤ VO ≤ 2.4V, Full | 4 | ||
| Receiver Input Resistance | RIN | 96 | kΩ | -7V ≤ VCM ≤ 12V, ISL81487, Full | 5 | ||
| No-Load Supply Current, DE = VCC | ICC | 400 | 500 | µA | ISL81487, DI, RE = 0V or VCC, DE = VCC, Full | 5 | |
| No-Load Supply Current, DE = 0V | ICC | 350 | 420 | µA | ISL81487, DI, RE = 0V or VCC, DE = 0V, Full | 5 | |
| Driver Short-Circuit Current | IOSD1 | 35 | 250 | mA | DE = VCC, -7V ≤ VY or VZ ≤ 12V, Note 4, Full | 5 | |
| Receiver Short-Circuit Current | IOSR | 7 | 85 | mA | 0V ≤ VO ≤ VCC, Full | 5 | |
| Driver Input to Output Delay | tPLH, tPHL | 15 | 24 | 50 | ns | RDIFF = 54Ω, CL = 100pF, Figure 2, Full | 5 |
| Driver Output Skew | tSKEW | 2 | 10 | ns | RDIFF = 54Ω, CL = 100pF, Figure 2, Full | 5 | |
| Driver Differential Rise or Fall Time | tR, tF | 3 | 12 | 25 | ns | RDIFF = 54Ω, CL = 100pF, Figure 2, Full | 5 |
| Driver Enable to Output High | tZH | 14 | 70 | ns | CL = 100pF, SW = GND, Figure 3, Full | 5 | |
| Driver Enable to Output Low | tZL | 14 | 70 | ns | CL = 100pF, SW = VCC, Figure 3, Full | 5 | |
| Driver Disable from Output High | tHZ | 44 | 70 | ns | CL = 15pF, SW = GND, Figure 3, Full | 5 | |
| Driver Disable from Output Low | tLZ | 21 | 70 | ns | CL = 15pF, SW = VCC, Figure 3, Full | 5 | |
| Receiver Input to Output Delay | tPLH, tPHL | 30 | 90 | 150 | ns | Figure 4, Full | 5 |
| Receiver Skew | tSKD | 5 | ns | /tPLH - tPHL/, Figure 4, 25°C | 5 | ||
| Receiver Enable to Output High | tZH | 9 | 50 | ns | CL = 15pF, SW = GND, Figure 5, Full | 5 | |
| Receiver Enable to Output Low | tZL | 9 | 50 | ns | CL = 15pF, SW = VCC, Figure 5, Full | 5 | |
| Receiver Disable from Output High | tHZ | 9 | 50 | ns | CL = 15pF, SW = GND, Figure 5, Full | 5 | |
| Receiver Disable from Output Low | tLZ | 9 | 50 | ns | CL = 15pF, SW = VCC, Figure 5, Full | 5 | |
| Maximum Data Rate | fMAX | 5 | Mbps | Full | 5 | ||
| Supply Voltage | VCC | 4.5 | 5.5 | V | VCC = 4.5V to 5.5V | 4 | |
| Operating Temperature Range | -40 | 85 | °C | ISL8XXXIX | 4 | ||
| VCC to Ground | VCC | 7 | V | 4 | |||
| Input Voltage DI, DE, RE | -0.5 | 5.5 | V | -0.5V to (VCC +0.5V) | 4 | ||
| Input/Output Voltage A/Y, B/Z | -8 | 12.5 | V | 4 | |||
| Input/Output Voltage RO | -0.5 | 5.5 | V | -0.5V to (VCC +0.5V) | 4 | ||
| ESD Rating HBM | 7 | kV | Per MIL-STD-883, Method 3015.7, >7kV | 4 | |||
| Maximum Junction Temperature | 150 | °C | Plastic Package | 4 | |||
| Storage Temperature Range | -65 | 150 | °C | 4 | |||
| Maximum Lead Temperature | 300 | °C | Soldering 10s, SOIC lead tips only | 4 | |||
| Thermal Resistance Junction to Ambient | θJA | 170 | °C/W | 8 Ld SOIC, Note 1 | 4 |
CAD (KiCad official)
- Symbol:
ISL81487IBZ - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files:
isl81487ibz-etched.step/isl81487ibz-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);isl81487ibz.step/isl81487ibz.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: RENESAS datasheet (14 pp, sha256
dc9cba60715b6841, retrieved 2026-10-24, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-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).