MAX3243EIPW
Texas InstrumentsUnited States

MAX3243EIPW

Last Time BuyDrivers, Receivers, TransceiversTSSOP

IC TRANSCEIVER FULL 3/5 28TSSOP

MAX3243EIPW is a 3-V to 5.5-V multichannel RS-232 line driver/receiver with 3 drivers and 5 receivers, supporting up to 500 kbit/s data rate in a 28-pin TSSOP package with ±15-kV ESD protection.Checked against the datasheet

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Technical parameters

Key specs

ProtocolRS-232
Drivers/Receivers3 ~ 5
Data rate500 kbpsMax
Supply voltage3 ~ 5.5 V

Datasheet-verified parameters

24 items
ParameterValue and test conditionsSource
ProtocolRS-232 (TIA/EIA-232-F, ITU V.28)
Drivers / Receivers3 Drivers, 5 Receivers
Data RateUp to 500 kbit/s
Supply Voltage3 V to 5.5 V
PackageTSSOP (PW) (28)
Operating Temperature-40 °C to 85 °C
GradeIndustrial (I)
RoHSYes
Recommended Operating ConditionsVCC = 3.3 V (Min 3 V, Max 3.6 V) or VCC = 5 V (Min 4.5 V, Max 5.5 V); TA = -40 °C to 85 °C
Absolute Maximum RatingsVCC: -0.3 V to 6 V; V+: -0.3 V to 7 V; V-: 0.3 V to -7 V; Tstg: -65 °C to 150 °C
ESD Protection (HBM)±15-kV Human-body model (HBM)
ESD Protection (IEC Contact)±8-kV IEC61000-4-2, contact discharge
ESD Protection (IEC Air-gap)±15-kV IEC61000-4-2, air-gap discharge
Quiescent Current1 μA typical (Low standby current)
Supply Current (Auto-powerdown disabled)Min 0.3 mA, Typ 1.2 mA, Max 1.2 mA (For DB, PW and RHB package, TA = 25°C, No load)
Supply Current (Auto-powerdown enabled)Min 1 μA, Typ 10 μA, Max 10 μA (TA = 25°C, No load, FORCEOFF at VCC, FORCEON at GND)
Input Leakage CurrentTyp ±0.01 μA, Max ±1 μA (FORCEOFF, FORCEON)
Driver High-Level Input VoltageMin 2 V (VCC=3.3V), Min 2.4 V (VCC=5V)
Driver Low-Level Input VoltageMax 0.8 V
Receiver Input Voltage Range-25 V to 25 V
Driver Output Voltage Range-13.2 V to 13.2 V
External Capacitors4 × 0.1 μF (at VCC = 3.3 V)
Thermal Resistance (Junction-to-Ambient)70.3 °C/W (TSSOP PW)
FeaturesAlways-active noninverting receiver output (ROUT2B), Auto-powerdown feature, Accepts 5-V logic input with 3.3-V supply
All parameters (16)ExpandCollapse
Power
Voltage - Supply3V ~ 5.5V
Environment and package
Mounting TypeSurface Mount
Operating Temperature-40°C~85°C
PackageTube
Package / Case28-TSSOP (0.173", 4.40mm Width)
Supplier Device Package28-TSSOP
Other
Base Product NumberMAX3243
Data Rate500kbps
DuplexFull
MfrTexas Instruments
Number of Drivers/Receivers3/5
Product StatusLast Time Buy
ProtocolRS232
Receiver Hysteresis500 mV
Series-
TypeTransceiver

Pinout and package

Figure 6-2. DB, DW, or PW Pack…
Figure 6-2. DB, DW, or PW Pack…
Package: TSSOP (PW) (28)
PinNameFunctionSource
1RIN1(RS-232 receiver input)
2RIN2(RS-232 receiver input)
3RIN3(RS-232 receiver input)
4RIN4(RS-232 receiver input)
5RIN5(RS-232 receiver input)
6DOUT1(RS-232 driver output)
7DOUT2(RS-232 driver output)
8DOUT3(RS-232 driver output)
9NC(Not connected internally)
10DIN3(Driver input)
11DIN2(Driver input)
12DIN1(Driver input)
13ROUT5(Receiver output)
14ROUT4(Receiver output)
15ROUT3(Receiver output)
16NC(Not connected internally)
17ROUT2(Receiver output)
18ROUT1(Receiver output)
19ROUT2B(Always-active noninverting receiver output)
20INVALID(Invalid Output Pin)
21FORCEOFF(Auto Powerdown Control input)
22FORCEON(Auto Powerdown Control input)
23C1-(Negative terminal of the voltage-doubler charge-pump capacitor)
24GND(Ground)
25NC(Not connected internally)
26VCC(3-V to 5.5-V supply voltage)
27V+(Positive charge pump output voltage)
28C1+(Positive terminals of the voltage-doubler charge-pump capacitors)

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DatasheetDatasheet · 1.9 MB · 2026-10-29
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