FIN1048MTCX from onsemi, 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	RIN1-	input	Inverting LVDS input of receiver 1, with differential input threshold of ±100mV and common-mode range 0.05V to 2.35V.
2	RIN1+	input	Non-inverting LVDS input of receiver 1, with differential input threshold of ±100mV and common-mode range 0.05V to 2.35V.
3	RIN2+	input	Non-inverting LVDS input of receiver 2, with differential input threshold of ±100mV and common-mode range 0.05V to 2.35V.
4	RIN2-	input	Inverting LVDS input of receiver 2, with differential input threshold of ±100mV and common-mode range 0.05V to 2.35V.
5	RIN3-	input	Inverting LVDS input of receiver 3, with differential input threshold of ±100mV and common-mode range 0.05V to 2.35V.
6	RIN3+	input	Non-inverting LVDS input of receiver 3, with differential input threshold of ±100mV and common-mode range 0.05V to 2.35V.
7	RIN4+	input	Non-inverting LVDS input of receiver 4, with differential input threshold of ±100mV and common-mode range 0.05V to 2.35V.
8	RIN4-	input	Inverting LVDS input of receiver 4, with differential input threshold of ±100mV and common-mode range 0.05V to 2.35V.
9	EN̅	input	Inverting enable pin; outputs are high impedance when it is HIGH, and enabled when LOW or open (with EN HIGH); LVTTL input VIH 2.0V min, VIL 0.8V max.
10	ROUT4	output	LVTTL data output of receiver 4, with VOH of at least 2.4V at -8mA and VOL of at most 0.5V at 8mA.
11	ROUT3	output	LVTTL data output of receiver 3, with VOH of at least 2.4V at -8mA and VOL of at most 0.5V at 8mA.
12	GND	power_in	Ground.
13	VCC	power_in	Power supply, 3.0V to 3.6V recommended operating range (absolute maximum -0.5V to +4.6V).
14	ROUT2	output	LVTTL data output of receiver 2, with VOH of at least 2.4V at -8mA and VOL of at most 0.5V at 8mA.
15	ROUT1	output	LVTTL data output of receiver 1, with VOH of at least 2.4V at -8mA and VOL of at most 0.5V at 8mA.
16	EN	input	Enable pin; outputs are enabled when HIGH (with EN̅ LOW or open) and high impedance when LOW or open; LVTTL input VIH 2.0V min, VIL 0.8V max.

Key specifications

Parameter	Value
Manufacturer	onsemi
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
Absolute Maximum: Supply Voltage	VCC	-0.5		4.6	V		3
Absolute Maximum: DC Input Voltage	VIN	-0.5		4.6	V		3
Absolute Maximum: DC Input Voltage (output pins)	VOUT	-0.5		6	V		3
Absolute Maximum: DC Output Current	IO			16	mA		3
Absolute Maximum: Storage Temperature Range	TSTG	-65		150	°C		3
Absolute Maximum: Max Junction Temperature	TJ			150	°C		3
Absolute Maximum: Lead Temperature (Soldering)	TL			260	°C	Soldering, 10 seconds	3
ESD (Human Body Model)		10000			V	Human Body Model, printed as ≥	3
ESD (Machine Model)		450			V	Machine Model, printed as ≥	3
Recommended Operating: Supply Voltage	VCC	3		3.6	V		3
Recommended Operating: Magnitude of Differential Voltage	/VID/	100			mV	Upper limit printed as VCC	3
Recommended Operating: Common-Mode Input Voltage	VIC	0.05		2.35	V		3
Recommended Operating: Input Voltage	VIN	0			V	Upper limit printed as VCC	3
Recommended Operating: Operating Temperature	TA	-40		85	°C		3
Differential Input Threshold HIGH	VTH			100	mV	See Figure 1 and Table 1	3
Differential Input Threshold LOW	VTL	-100			mV	See Figure 1 and Table 1	3
Input Current	IIN	-20		20	µA	VIN = 0V or VCC	3
Power-Off Input Current	II(OFF)	-20		20	µA	VCC = 0V, VIN = 0V or 3.6V	3
Input High Voltage (EN or EN)	VIH	2			V		3
Input Low Voltage (EN or EN)	VIL			0.8	V		3
Output HIGH Voltage	VOH	2.4			V	IOH = −8 mA	3
Output LOW Voltage	VOL			0.2	V	IOH = 100 µA	3
Output LOW Voltage	VOL			0.5	V	IOL = 8 mA	3
Disabled Output Leakage Current	IOZ	-20		20	µA	EN = 0.8 and EN* = 2V, VOUT = 3.6V or 0V	3
Input Clamp Voltage	VIK			-1.5	V	IIK = −18 mA	3
Disabled Power Supply Current	ICCZ			5	mA	Receiver Disabled	3
Power Supply Current	ICC			15	mA	Receiver Enabled, (RIN+ = 1V and RIN− = 1.4V) or (RIN+ = 1.4V and RIN− = 1V)	3
Propagation Delay LOW-to-HIGH	tPLH	1		2.5	ns		4
Propagation Delay HIGH-to-LOW	tPHL	1		2.5	ns		4
Output Rise Time (20% to 80%)	tTLH	0.7		1.2	ns	/VID/ = 400 mV, CL = 10 pF	4
Output Fall Time (80% to 20%)	tTHL	0.7		1.2	ns	RL = 1kΩ	4
Pulse Skew	tSK(P)			0.4	ns	See Figure 1 and Figure 2	4
Channel-to-Channel Skew	tSK(LH), tSK(HL)			0.3	ns		4
Part-to-Part Skew	tSK(PP)			1	ns		4
Maximum Operating Frequency	fMAX	200	375		MHz	RL = 1kΩ, CL = 10 pF, see Figure 1 and Figure 2	4
LVTTL Output Enable Time from Z to HIGH	tZH			6	ns		4
LVTTL Output Enable Time from Z to LOW	tZL			6	ns	RL = 1kΩ, CL = 10 pF	4
LVTTL Output Disable Time from HIGH to Z	tHZ			6	ns	See Figure 3	4
LVTTL Output Disable Time from LOW to Z	tLZ			6	ns		4
Input Capacitance	CIN		3.5		pF		3
Output Capacitance	COUT		6		pF		3

CAD (KiCad official)

Symbol: FIN1048MTCX
Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
3D model: TSSOP-16 (KiCad packages3D, STEP)
3D model files: fin1048mtcx-etched.step / fin1048mtcx-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fin1048mtcx.step / fin1048mtcx.glb are the bare package body.

Provenance

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

Datasheet: onsemi datasheet (8 pp, sha256 4664d6ec642a3ebd, retrieved 2026-10-30, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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

FIN1048MTCX

Verified FIN1048MTCX

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3D Model

Symbol & Footprint

Schematic Symbol

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Datasheet

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