Figure 4-1. DB, PW or DYY Pack…

MAX3221EIPWR

ActiveDrivers, Receivers, TransceiversTSSOP

IC TRANSCEIVER FULL 1/1 16TSSOP

MAX3221EIPWR is a 3V to 5.5V single-channel RS-232 line driver and receiver with ±15kV IEC ESD protection, up to 250kbit/s data rate, in a 16-pin TSSOP package, operating from -40°C to 85°CChecked against the datasheet

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Technical parameters

Key specs

ProtocolRS-232

Drivers/Receivers1

Data rate250 kbpsMax

Supply voltage3 ~ 5.5 V

Datasheet-verified parameters

23 items

Parameter	Value and test conditions	Source
Protocol	RS-232 (TIA/EIA-232-F, ITU v.28)
Drivers / Receivers	1 Driver, 1 Receiver
Data Rate	Up to 250kbit/s
Supply Voltage	3V to 5.5V
Package	TSSOP (PW, 16)
Operating Temperature	-40°C to 85°C
Grade	Industrial (I)
RoHS	Yes
Recommended Operating Conditions	VCC: 3V to 5.5V; TA: -40°C to 85°C
Absolute Maximum Ratings	VCC: -0.3V to 6V; Tstg: -65°C to 150°C
ESD Protection	±15kV HBM, ±8kV IEC 61000-4-2 Contact, ±15kV IEC 61000-4-2 Air-gap
Quiescent Current	1µA typical (Powered off / Auto-power down enabled)
Supply Current	0.3mA typical (Auto-power down disabled, VCC=3.3V or 5V, TA=25°C)
Driver High-Level Output Voltage	Min 5V, Typ 5.4V (RL=3kΩ to GND, DIN=GND)
Driver Low-Level Output Voltage	Max -5V, Typ -5.4V (RL=3kΩ to GND, DIN=VCC)
Driver Short-Circuit Output Current	Typ ±35mA, Max ±60mA (VCC=3.6V or 5.5V, VO=0V)
Receiver High-Level Output Voltage	Min VCC-0.6V, Typ VCC-0.1V (IOH=-1mA)
Receiver Low-Level Output Voltage	Max 0.4V (IOL=1.6mA)
Receiver Positive-Going Input Threshold Voltage	Typ 1.6V (VCC=3.3V), Typ 1.9V (VCC=5V); Max 2.4V
Receiver Negative-Going Input Threshold Voltage	Typ 1.1V (VCC=3.3V), Typ 1.4V (VCC=5V); Min 0.6V/0.8V
Receiver Input Resistance	Min 3kΩ, Typ 5kΩ, Max 7kΩ (VI=±3V to ±25V)
Auto-Power-Down Feature	Yes
Pin Count	16

All parameters (16)ExpandCollapse

Power
Voltage - Supply	3V ~ 5.5V
Environment and package
Mounting Type	Surface Mount
Operating Temperature	-40°C~85°C
Package	Tape & Reel (TR); Cut Tape (CT); Digi-Reel®
Package / Case	16-TSSOP (0.173", 4.40mm Width)
Supplier Device Package	16-TSSOP
Other
Base Product Number	MAX3221
Data Rate	250kbps
Duplex	Full
Mfr	Texas Instruments
Number of Drivers/Receivers	1/1
Product Status	Active
Protocol	RS232
Receiver Hysteresis	500 mV
Series	-
Type	Transceiver

Pinout and package

Pin	Name	Function
1	EN	(Active Low): Low input enables receiver ROUT output. High input sets ROUT to high impedance.
2		C1+: Positive terminals of the voltage-doubler charge pump capacitors
3		V+: 5.5V supply generated by the charge pump
4		C1-: Negative terminals of the voltage-doubler charge pump capacitors
5		C2+: Positive terminals of the voltage-doubler charge pump capacitors
6		C2-: Negative terminals of the voltage-doubler charge pump capacitors
7		V-: -5.5V supply generated by the charge pump
8		RIN: RS-232 receiver input
9		ROUT: Receiver output
10		INVALID: Invalid output pin. Output low when RIN input is unpowered.
11		DIN: Driver input
12		FORCEON: Automatic power-down control input
13		DOUT: RS-232 driver output
14		GND: Ground
15		VCC: 3V to 5.5V supply voltage
16		FORCEOFF: Automatic power-down control input

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DatasheetDatasheet · 1.4 MB · 2026-10-28

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