XR33055HD-F from MaxLinear, 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: RO is high when A-B is at least 200mV and low when A-B is at most -200mV, and it is high if the inputs are open, shorted or undriven for more than 2µs, with RO enabled only when RE is low.
2	RE	input	Receiver output enable (hot swap): RO is enabled when RE is low and goes high-impedance when RE is high, and RE should be high with DE low to enter shutdown mode.
3	DE	input	Driver output enable (hot swap): the driver outputs are enabled when DE is high and high-impedance when DE is low, and DE should be low with RE high to enter shutdown mode.
4	DI	input	Driver input: with DE high, a low on DI forces the non-inverting output (A/Y) low and the inverting output (B/Z) high, and a high on DI forces A/Y high and B/Z low.
5	GND	power_in	Power ground.
6	A/Y	bidirectional	Non-inverting receiver input and non-inverting driver output.
7	B/Z	bidirectional	Inverting receiver input and inverting driver output.
8	VCC	power_in	3.0V to 5.5V power supply input; bypass to ground with a 0.1µF capacitor.

Key specifications

Parameter	Value
Manufacturer	MaxLinear
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
Supply voltage range	VCC	3		5.5	V		3
Differential driver output (RS-422)	VOD	2			V	4.5V ≤ VCC ≤ 5.5V, RL = 100Ω (RS-422), Figure 3	3
Differential driver output (RS-485)	VOD	1.5			V	4.5V ≤ VCC ≤ 5.5V, RL = 54Ω (RS-485), Figure 3	3
Differential driver output over common mode	VOD	1.5			V	4.5V ≤ VCC ≤ 5.5V, -25V ≤ VCM ≤ 25V, Figure 4	3
Differential driver output (RS-422)	VOD	0.85			V	3.0V ≤ VCC ≤ 4.5V, RL = 100Ω (RS-422), Figure 3	3
Differential driver output (RS-485)	VOD	0.65			V	3.0V ≤ VCC ≤ 4.5V, RL = 54Ω (RS-485), Figure 3	3
Change in magnitude of differential output voltage	∆VOD	-0.2		0.2	V	RL = 100Ω (RS-422) or RL = 54Ω (RS-485), Figure 3	3
Driver common-mode output voltage (steady state)	VCM	1		3	V		3
Change in magnitude of common-mode output voltage	∆VCM	-0.2		0.2	V		3
Logic high input threshold (DI, DE and RE)	VIH	2			V	VCC = 3.3V	3
Logic high input threshold (DI, DE and RE)	VIH	2.4			V	VCC = 5.0V	3
Logic low input threshold (DI, DE and RE)	VIL			0.8	V		3
Logic input current (DI, DE and RE)	IIN	-1		1	µA	0V ≤ VIN ≤ VCC, After first transition	3
Logic input current hot swap (DE and RE)	IINHS	-200	100	200	µA	Until first transition	3
Input current (A and B)	IA, B			100	µA	VCC = 0V or 5.5V, VOUT = 12V, DE = 0V, for XR33052/53/55	3
Input current (A and B)	IA, B	-80			µA	VCC = 0V or 5.5V, VOUT = -7V, DE = 0V, for XR33052/53/55	3
Driver short-circuit output current	IOSD	-250		250	mA	-60V ≤ VOUT ≤ 60V, DI = 0V or VCC, Figure 5	3
Receiver output low voltage (RO)	VOL			0.4	V	IOUT = 4mA	4
High-Z receiver output current	IOZR	-1		1	µA	0V ≤ VOUT ≤ VCC	4
Receiver differential input signal threshold voltage (VA - VB)	VSTH	-85		200	mV	-25V ≤ VOUT ≤ 25V	4
Negative going receiver differential input fail-safe threshold voltage (VA - VB)	VFSTH-	-200	-125	-40	mV	-25V ≤ VOUT ≤ 25V	4
Positive going receiver differential input fail-safe threshold voltage (VA - VB)	VFSTH+	-100		-10	mV	-25V ≤ VOUT ≤ 25V	4
RX input resistance (XR33052/53/55)	RIN	120			kΩ	-25V ≤ VCM ≤ 25V, XR33052/53/55	4
Supply current	ICC			4	mA	No load, RE = 0V or VCC, DE = VCC, DI = 0V or VCC	4
Supply current in shutdown mode	ISHDN		0.001	1	µA	RE = VCC, DE = 0V	4
Driver propagation delay (low to high)	tDPLH	150		500	ns	CL = 50pF, RL = 54Ω, Figure 7	6
Driver propagation delay (high to low)	tDPHL	150		500	ns	CL = 50pF, RL = 54Ω, Figure 7	6
Driver differential output rise or fall time	tDR, tDF	100	200	300	ns		6
Maximum data rate (driver, 1/tUI)				1	Mbps	1/tUI, duty cycle 40% to 60%	6
Driver enable to output high	tDZH	1000		2500	ns	CL = 50pF, RL = 500Ω, Figure 8	6
Driver enable to output low	tDZL	1000		2500	ns	CL = 50pF, RL = 500Ω, Figure 8	6
Driver disable from output high	tDHZ			250	ns		6
Driver disable from output low	tDLZ			250	ns		6
Driver enable from shutdown to output high	tDZH(SHDN)	2500		4500	ns	CL = 50pF, RL = 500Ω, Figure 8	6
Driver enable from shutdown to output low	tDZL(SHDN)	2500		4500	ns	CL = 50pF, RL = 500Ω, Figure 8	6
Time to shutdown	tSHDN	50	200	600	ns	Notes 1 and 2	6
Receiver propagation delay (low to high)	tRPLH			200	ns	CL = 15pF, VID = ±2V, VID rise and fall times < 15ns, Figure 9	6
Receiver propagation delay (high to low)	tRPHL			200	ns	CL = 15pF, VID = ±2V, VID rise and fall times < 15ns, Figure 9	6
Receiver enable to output high	tRZH			50	ns	CL = 15pF, RL = 1kΩ, Figure 10	6
Receiver enable to output low	tRZL			50	ns	CL = 15pF, RL = 1kΩ, Figure 10	6
Receiver disable from output high	tRHZ			50	ns		6
Receiver disable from output low	tRLZ			50	ns		6
Receiver enable from shutdown to output high	tRZH(SHDN)			3500	ns	CL = 15pF, RL = 1kΩ, Figure 10	6
Receiver enable from shutdown to output low	tRZL(SHDN)			3500	ns	CL = 15pF, RL = 1kΩ, Figure 10	6
Supply voltage (absolute maximum)	VCC	-0.3		7	V		2
Input voltage (DE and DI)		-0.3		7	V		2
Input voltage (RE)		-0.3			V		2
Receiver output voltage (RO)		-0.3			V		2
Driver output voltage (Y, Z, A/Y and B/Z)		-60		60	V		2
Receiver input voltage (A, B, A/Y and B/Z)		-60		60	V		2
Transient voltage pulse		-100		100	V	through 100Ω	2
Driver output current		-250		250	mA		2
Maximum junction temperature				150	°C		2
Storage temperature		-65		150	°C		2
ESD HBM (A, B, Y and Z pins)		-15		15	kV	Human Body Model, A, B, Y and Z pins	2
ESD HBM (all other pins)		-4		4	kV	Human Body Model, all other pins	2
Operating temperature range		-40		105	°C		2
Change in magnitude of differential output voltage fail-safe receiver threshold hysteresis	∆VSTH		170		mV	Receiver differential input signal hysteresis	4
Thermal shutdown temperature	TTS		175		°C	Junction temperature	4

CAD (KiCad official)

Symbol: XR33055HD-F
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: xr33055hd-f-etched.step / xr33055hd-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); xr33055hd-f.step / xr33055hd-f.glb are the bare package body.

Provenance

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

Datasheet: MaxLinear datasheet (20 pp, sha256 d4d2065166fbb06f, retrieved 2026-10-30, 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

XR33055HD-F

Verified XR33055HD-F

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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