MAX14840EATA+

Drivers, Receivers, Transceivers8 TDFN-EP

IC TRANSCEIVER RS-485 1DR/1RVR 40MBPS 8-TDFN

MAX14840EATA+ is a +3.3V RS-485 half-duplex transceiver supporting 40Mbps rates in an 8-pin TDFN-EP package, featuring symmetrical fail-safe, 170mV receiver hysteresis, and thermal shutdown, operating from -40°C to +125°C.Checked against the datasheet

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Technical parameters

Key specs

ProtocolRS-485

Drivers/Receivers1

Data rate40 MbpsMax

Supply voltage3 ~ 3.6 V

Datasheet-verified parameters

21 items

Parameter	Value and test conditions	Source
Protocol	RS-485
Drivers / Receivers	1 Driver, 1 Receiver
Data Rate	40Mbps
Supply Voltage	Min: 3.0V, Max: 3.6V
Package	8 TDFN-EP
Operating Temperature	-40°C to +125°C
Grade	Industrial
RoHS	Compliant
Recommended Operating Conditions	VCC = +3.0V to +3.6V, TA = -40°C to +125°C
Absolute Maximum Ratings	VCC: -0.3V to +6.0V
Supply Current	Typ: 1.5mA, Max: 4mA (DE = RE = VCC or GND, DI = VCC or GND, no load)
Shutdown Supply Current	Max: 10μA (DE = GND and RE = VCC)
Differential Driver Output	Min: 1.5V (RL = 54Ω)
Driver Short-Circuit Output Current	Max: 250mA (0V ≤ VOUT ≤ +12V, output low)
Receiver Input Hysteresis	Min: 20mV, Typ: 170mV (VCM = 0V)
Receiver Differential Threshold Voltage	VTHF: Min -200mV, Max -10mV; VTHR: Min 10mV, Max 200mV (-7V ≤ VCM ≤ 12V)
Thermal-Shutdown Threshold	Max: 160°C
ESD Protection (HBM)	Typ: ±35kV (A, B to GND)
ESD Protection (IEC 61000-4-2 Air Gap)	Typ: ±20kV (A, B to GND)
ESD Protection (IEC 61000-4-2 Contact)	Typ: ±12kV (A, B to GND)
Process	BiCMOS

All parameters (7)ExpandCollapse

Power
Supply Voltage	3.0 V (Min) to 3.6 V (Max)
Environment and package
Operating Temperature Range	-40°C to +125°C
Package	8 TDFN-EP
Thermal-Shutdown Threshold	160 °C (Max)
Other
ESD Protection: A, B to GND (HBM)	±35 kV
Maximum Data Rate	40 Mbps
Receiver Input Hysteresis (MAX14840E Only)	170 mV (Typ)

Pinout and package

Pin	Name	Function	Source
1		RO: Receiver Output
2		RE: Active-Low Receiver-Output Enable
3		DE: Driver-Output Enable
4		DI: Driver Input
5		GND: Ground
6		A: Noninverting Receiver Input and Noninverting Driver Output
7		B: Inverting Receiver Input and Inverting Driver Output
8		VCC: Positive Supply Voltage Input
EP		EP: Exposed Pad (TDFN Only), Connect to GND

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DatasheetDatasheet · 990.8 KB · 2026-10-29

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