ISL3259EIBZ-T 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 ≥ -50mV, low if A-B ≤ -200mV, and high if inputs are floating, shorted or on a terminated undriven bus; high impedance when RE is high.
2	RE	input	Receiver output enable, active low: RO is enabled when RE is low and high impedance when RE is high; connect to GND if not needed.
3	DE	input	Driver output enable: Y and Z are enabled when DE is high and high impedance when DE is low; if not needed, connect to VCC through a 1k or greater resistor.
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	±15kV IEC61000 ESD protected RS-485/RS-422 noninverting receiver input and noninverting driver output; input (A) if DE = 0, output (Y) if DE = 1.
7	B/Z	bidirectional	±15kV IEC61000 ESD protected RS-485/RS-422 inverting receiver input and inverting driver output; input (B) if DE = 0, output (Z) if DE = 1.
8	VCC	power_in	System power supply input (4.75V to 5.25V).

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 (RS-422)	VOD	2.6	3.4		V	RL = 100Ω (Figure 1A), Full	4
Driver Differential VOUT (RS-485)	VOD	2.1	2.8		V	RL = 54Ω (Figure 1A), Full; max printed as VCC	4
Driver Differential VOUT (common mode load)	VOD	1.9	2.7		V	RL = 60Ω, -7V ≤ VCM ≤ 12V (Figure 1B), Full	4
Change in Magnitude of Driver Differential VOUT	ΔVOD		0.01	0.2	V	RL = 54Ω or 100Ω (Figure 1A), Full	4
Driver Common-Mode VOUT	VOC		2	3	V	RL = 54Ω or 100Ω (Figure 1A), Full	4
Change in Magnitude of Driver Common-Mode VOUT	ΔVOC		0.01	0.2	V	RL = 54Ω or 100Ω (Figure 1A), Full	4
Logic Input High Voltage	VIH	2			V	DI, DE, RE, Full	4
Logic Input Low Voltage	VIL			0.8	V	DI, DE, RE, Full	4
Logic Input Current	IIN1	-2		2	µA	DI = DE = RE = 0V or VCC, Full	4
Input Current (A/Y, B/Z) at 12V	IIN2			220	µA	DE = 0V, VCC = 0V or 5.25V, VIN = 12V, Full	4
Input Current (A/Y, B/Z) at -7V	IIN2	-160			µA	DE = 0V, VCC = 0V or 5.25V, VIN = -7V, Full	4
Driver Short-Circuit Current	IOSD1	-250		250	mA	DE = VCC, -7V ≤ VY or VZ ≤ 12V (Note 8), Full; printed ±250	4
Receiver Differential Threshold Voltage	VTH	-200		-50	mV	-7V ≤ VCM ≤ 12V, Full	4
Receiver Output Low Voltage	VOL			0.4	V	IO = +10mA, VID = -200mV, Full	4
Receiver Output Low Current	IOL	25	40		mA	VOL = 1V, VID = -200mV, Full	4
Three-State Receiver Output Current	IOZR	-1	0.015	1	µA	0.4V ≤ VO ≤ 2.4V, Full	4
Receiver Input Resistance	RIN	54	80		kΩ	-7V ≤ VCM ≤ 12V, Full	5
No-Load Supply Current	ICC		2.6	4	mA	DI = DE = 0V or VCC, Full (Note 7)	5
Shutdown Supply Current	ISHDN		0.05	1	µA	DE = 0V, RE = VCC, DI = 0V or VCC, Full	5
Driver Maximum Data Rate	fMAX	100			Mbps	VOD ≥ ±1.5V, RD = 54Ω, CL = 100pF (Figure 4), Full	5
Driver Differential Output Delay	tDD		8	12	ns	RD = 54Ω, CD = 50pF (Figure 2), Full	5
Driver Differential Output Skew	tSKEW		0.5	1.5	ns	RD = 54Ω, CD = 50pF (Figure 2), Full	5
Driver Prop Delay Part-to-Part Skew	tSKP-P			4	ns	RD = 54Ω, CD = 50pF (Figure 2), (Note 14), Full	5
Driver Differential Rise or Fall Time	tR, tF	2	5	8	ns	RD = 54Ω, CD = 50pF (Figure 2), Full	5
Driver Enable to Output High	tZH		13	20	ns	RL = 110Ω, CL = 50pF, SW = GND (Figure 3), (Note 9), Full	5
Driver Enable to Output Low	tZL		11	20	ns	RL = 110Ω, CL = 50pF, SW = VCC (Figure 3), (Note 9), Full	5
Driver Disable from Output High	tHZ		14	20	ns	RL = 110Ω, CL = 50pF, SW = GND (Figure 3), Full	5
Driver Disable from Output Low	tLZ		12	20	ns	RL = 110Ω, CL = 50pF, SW = VCC (Figure 3), Full	5
Driver Time to Shutdown	tSHDN	60		600	ns	(Note 11), Full	5
Driver Enable from Shutdown to Output High	tZH(SHDN)			1000	ns	RL = 110Ω, CL = 50pF, SW = GND (Figure 3), (Notes 11, 12), Full	5
Driver Enable from Shutdown to Output Low	tZL(SHDN)			1000	ns	RL = 110Ω, CL = 50pF, SW = VCC (Figure 3), (Notes 11, 12), Full	5
Receiver Maximum Data Rate	fMAX	100			Mbps	VID = ±1.5V, Full	5
Receiver Input to Output Delay	tPLH, tPHL		9	13	ns	(Figure 5), Full	5
Receiver Skew	tSKD		0	1.5	ns	/tPLH - tPHL/ (Figure 5), Full	5
Receiver Prop Delay Part-to-Part Skew	tSKP-P			4	ns	(Figure 5), (Note 14), Full	5
Receiver Enable to Output High	tZH			12	ns	RL = 1kΩ, CL = 15pF, SW = GND (Figure 6), (Note 10), Full	5
Receiver Enable to Output Low	tZL			12	ns	RL = 1kΩ, CL = 15pF, SW = VCC (Figure 6), (Note 10), Full	5
Receiver Disable from Output High	tHZ			12	ns	RL = 1kΩ, CL = 15pF, SW = GND (Figure 6), Full	5
Receiver Disable from Output Low	tLZ			12	ns	RL = 1kΩ, CL = 15pF, SW = VCC (Figure 6), Full	5
Receiver Time to Shutdown	tSHDN	60		600	ns	(Notes 11), Full	6
Receiver Enable from Shutdown to Output High	tZH(SHDN)			1000	ns	RL = 1kΩ, CL = 15pF, SW = GND (Figure 6), (Notes 11, 13), Full	6
Receiver Enable from Shutdown to Output Low	tZL(SHDN)			1000	ns	RL = 1kΩ, CL = 15pF, SW = VCC (Figure 6), (Notes 11, 13), Full	6
Supply Voltage (VCC)	VCC	4.75		5.25	V	VCC = 4.75V to 5.25V	4
Operating Temperature Range		-40		85	°C		4
VCC to GND	VCC			7	V		4
Input Voltages DI, DE, RE		-0.3		7	V		4
Input/Output Voltages A/Y, B/Z		-9		13	V		4
Maximum Junction Temperature				150	°C	Plastic package	4
Storage Temperature Range		-65		150	°C		4
Receiver Input Hysteresis	ΔVTH		28		mV	VCM = 0V, 25°C	4
Differential Capacitance	CD		9		pF	A/Y to B/Z, 25°C	4
Thermal Resistance Junction to Ambient, 8 Ld SOIC	θJA		105		°C/W	Typical, Note 4	4

CAD (KiCad official)

Symbol: ISL3259EIBZ-T
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: isl3259eibz-t-etched.step / isl3259eibz-t-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); isl3259eibz-t.step / isl3259eibz-t.glb are the bare package body.

Provenance

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

Datasheet: RENESAS datasheet (17 pp, sha256 0e35ba1e191b190b, retrieved 2026-10-30, 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

ISL3259EIBZ-T

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3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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