MAX3232EID

Texas InstrumentsExtended

-40℃~+85℃ 0.3mA 2 2 250Kbps 3V~5.5V Transceiver Yes ±15kV SOIC-16 RS232 ICs ROHS

Part id: ti/MAX3232EID
Category: RS232 ICs
Package: SOIC-16
Pins: 16
In stock: 34,541 at JLCPCB (C193666)
Used on: 1 open-source board

Overview

The MAX3232EID is a RS232 IC made by Texas Instruments in a SOIC-16 package with 16 pins. -40℃~+85℃ 0.3mA 2 2 250Kbps 3V~5.5V Transceiver Yes ±15kV SOIC-16 RS232 ICs ROHS.

PCBKit's library has its KiCad symbol (Interface_UART:MAX3232, from KiCad's library) and its footprint (Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, from KiCad's library), ready for a KiCad board. 34,541 are in stock at JLCPCB (part C193666). 1 open-source board in 1 repository on GitHub use it.

Symbol

Interface_UART:MAX3232From KiCad's library

Footprint

Package_SO:SOIC-16_3.9x9.9mm_P1.27mmFrom KiCad's library

From the datasheet

Supply, least: 3 V · VCC, recommended operating min, 3.3 V operation · p. 4
Supply, most: 3.6 V · VCC, recommended operating max, 3.3 V operation · p. 4
Supply, least: 4.5 V · VCC, recommended operating min, 5 V operation · p. 4
Supply, most: 5.5 V · VCC, recommended operating max, 5 V operation · p. 4
Supply, absolute maximum: 6 V · VCC, absolute max · p. 4
Works from: -40 °C · Operating free-air temperature min, MAX3232EI · p. 4
Works up to: 85 °C · Operating free-air temperature max, MAX3232EI · p. 4
Junction, hottest: 150 °C · Operating virtual junction temperature absolute max · p. 4
Takes working: 300 µA · VCC supply current typical, no load, VCC = 3.3 V or 5 V · p. 5
Junction to air (D (SOIC)): 76.1 K/W · Junction-to-ambient thermal resistance · p. 5
Junction to case (D (SOIC)): 36.7 K/W · Junction-to-case (top) thermal resistance · p. 5
Junction to board (D (SOIC)): 33.6 K/W · Junction-to-board thermal resistance · p. 5
Data rate, most: 250 kbit/s · Recommended bit rate max · p. 11

What it is and has

Drivers and receivers: Two drivers and two receivers · p. 1
Maximum data rate: 250 kbit/s · p. 1
Logic input compatibility: 5-V logic input with 3.3-V supply · p. 1
External capacitors: 4 × 0.1 μF · p. 1
ESD protection: ±15 kV HBM on RS-232 bus pins · p. 1
ESD protection: ±8 kV IEC61000-4-2 contact discharge on RS-232 bus pins · p. 1
ESD protection: ±15 kV IEC61000-4-2 air-gap discharge on RS-232 bus pins · p. 1
Protection: Outputs protected against shorts to ground · p. 8
Receiver open-input behavior: High output on ROUT · p. 8
Package: D, SOIC (16), 9.90 mm × 3.91 mm nominal body · p. 1

Around it

cap 0.1 µF: between C1+ and C1–; C1, VCC = 3.3 V ± 0.3 V; nonpolarized ceramic acceptable. · p. 10
cap 0.047 µF: between C1+ and C1–; C1, VCC = 5 V ± 0.5 V; nonpolarized ceramic acceptable. · p. 10
cap 0.33 µF: between C2+ and C2–; C2, VCC = 5 V ± 0.5 V; nonpolarized ceramic acceptable. · p. 10
cap 0.1 µF: between C1+ and C1–; C1, VCC = 3 V to 5.5 V; nonpolarized ceramic acceptable. · p. 10
cap 0.47 µF: between C2+ and C2–; C2, VCC = 3 V to 5.5 V; nonpolarized ceramic acceptable. · p. 10
cap 0.1µF: between VCC and GND; CBYPASS in Figure 7. · p. 10

Specifications

Parameter	Conditions	As printed	Page
Supply voltage VCC	Over operating free-air temperature range; with respect to GND	min -0.3 · max 6 V	4
Positive output supply voltage V+	Over operating free-air temperature range; with respect to GND	min -0.3 · max 7 V	4
Negative output supply voltage V–	Over operating free-air temperature range; with respect to GND; limits retained in printed column order	min 0.3 · max -7 V	4
Supply voltage difference V+ – V–	Over operating free-air temperature range	max 13 V	4
Input voltage VI	Drivers	min -0.3 · max 6 V	4
Input voltage VI	Receivers	min -25 · max 25 V	4
Output voltage VO	Drivers	min -13.2 · max 13.2 V	4
Output voltage VO	Receivers; maximum is VCC + 0.3 V	min -0.3 V	4
Operating virtual junction temperature TJ		max 150 °C	4
Storage temperature Tstg		min -65 · max 150 °C	4
Electrostatic discharge V(ESD)	Human body model (HBM), per ANSI/ESDA/JEDEC JS-001; all pins except RIN and DOUT; ±2000 V	max 2000 V	4
Electrostatic discharge V(ESD)	Human body model (HBM), per ANSI/ESDA/JEDEC JS-001; RIN and DOUT pins; ±15,000 V	max 15000 V	4
Electrostatic discharge V(ESD)	Charged-device model (CDM), per JEDEC specification JESD22-C101; all pins; ±1500 V	max 1500 V	4
Electrostatic discharge V(ESD)	IEC61000-4-2, Contact Discharge; RS232 port pins (RIN, DOUT); ±8000 V	max 8000 V	4
Electrostatic discharge V(ESD)	IEC61000-4-2, Air-Gap Discharge; RS232 port pins (RIN, DOUT); ±15,000 V	max 15000 V	4
Supply voltage	VCC = 3.3 V; nominal 3.3 V	min 3 · max 3.6 V	4
Supply voltage	VCC = 5 V; nominal 5 V	min 4.5 · max 5.5 V	4
Driver high-level input voltage VIH	DIN; VCC = 3.3 V	min 2 · max 5.5 V	4
Driver high-level input voltage VIH	DIN; VCC = 5 V	min 2.4 · max 5.5 V	4
Driver low-level input voltage VIL	DIN	min 0 · max 0.8 V	4
Receiver input voltage VI	RIN	min -25 · max 25 V	4
Operating free-air temperature TA	MAX3232EI	min -40 · max 85 °C	4
Junction-to-ambient thermal resistance RθJA	D (SOIC), 16 pins	typ 76.1 °C/W	5
Junction-to-case (top) thermal resistance RθJCtop	D (SOIC), 16 pins	typ 36.7 °C/W	5
Junction-to-board thermal resistance RθJB	D (SOIC), 16 pins	typ 33.6 °C/W	5
Junction-to-top characterization parameter ψJT	D (SOIC), 16 pins	typ 4.2 °C/W	5
Junction-to-board characterization parameter ψJB	D (SOIC), 16 pins	typ 33.3 °C/W	5
Supply current ICC	No load, VCC = 3.3 V or 5 V	typ 0.3 · max 1 mA	5
High-level output voltage VOH	DOUT at RL = 3 kΩ to GND, DIN = GND	min 5 · typ 5.4 V	5
Low-level output voltage VOL	DOUT at RL = 3 kΩ to GND, DIN = VCC	min -5 · typ -5.4 V	5
High-level input current IIH	VI = VCC; typical and maximum are ± magnitudes	typ 0.01 · max 1 uA	5
Low-level input current IIL	VI at GND; typical and maximum are ± magnitudes	typ 0.01 · max 1 uA	5
Short-circuit output current IOS	VCC = 3.6 V, VO = 0 V; typical and maximum are ± magnitudes	typ 35 · max 60 mA	5
Short-circuit output current IOS	VCC = 5.5 V, VO = 0 V; typical and maximum are ± magnitudes	typ 35 · max 60 mA	5
Output resistance rO	VCC, V+, and V– = 0 V, VO = ±2 V; typical printed as 10M Ω	min 300 Ω	5
Low-level output voltage VOL	IOL = 1.6 mA	max 0.4 V	5
Positive-going input threshold voltage VIT+	VCC = 3.3 V	typ 1.5 · max 2.4 V	5
Positive-going input threshold voltage VIT+	VCC = 5 V	typ 1.8 · max 2.4 V	5
Negative-going input threshold voltage VIT–	VCC = 3.3 V	min 0.6 · typ 1.2 V	5
Negative-going input threshold voltage VIT–	VCC = 5 V	min 0.8 · typ 1.5 V	5
Input hysteresis (VIT+ – VIT–) Vhys		typ 0.3 V	5
Input resistance ri	VI = ±3 V to ±25 V	min 3 · typ 5 · max 7 kΩ	5
Maximum data rate	RL = 3 kΩ, CL = 1000 pF, one DOUT switching; see Figure 3	min 150 · typ 250 kbit/s	6
Driver pulse skew tsk(p)	RL = 3 kΩ to 7 kΩ, CL = 150 pF to 2500 pF; see Figure 4	typ 300 ns	6
Driver slew rate, transition region (see Figure 3) SR(tr)	RL = 3 kΩ to 7 kΩ, VCC = 3.3 V, CL = 150 pF to 1000 pF	min 6 · max 30 V/us	6
Driver slew rate, transition region (see Figure 3) SR(tr)	RL = 3 kΩ to 7 kΩ, VCC = 3.3 V, CL = 150 pF to 2500 pF	min 4 · max 30 V/us	6
Receiver propagation delay time, low- to high-level output tPLH	CL = 150 pF; see Figure 5	typ 300 ns	6
Receiver propagation delay time, high- to low-level output tPHL	CL = 150 pF; see Figure 5	typ 300 ns	6
Receiver pulse skew tsk(p)	CL = 150 pF; see Figure 5	typ 300 ns	6

Pins, by the datasheet

1 C1+: Positive lead of C1 capacitor. · p. 3
2 V+: Positive charge pump output for storage capacitor only. · p. 3
3 C1–: Negative lead of C1 capacitor. · p. 3
4 C2+: Positive lead of C2 capacitor. · p. 3
5 C2–: Negative lead of C2 capacitor. · p. 3
6 V–: Negative charge pump output for storage capacitor only. · p. 3
7 DOUT2: RS232 line data output to remote RS232 system. · p. 3
8 RIN2: RS232 line data input from remote RS232 system. · p. 3
9 ROUT2: Logic data output to UART. · p. 3
10 DIN2: Logic data input from UART. · p. 3
11 DIN1: Logic data input from UART. · p. 3
12 ROUT1: Logic data output to UART. · p. 3
13 RIN1: RS232 line data input from remote RS232 system. · p. 3
14 DOUT1: RS232 line data output to remote RS232 system. · p. 3
15 GND: Ground. · p. 3
16 VCC: Supply voltage; connect to external 3-V to 5.5-V power supply. · p. 3

Ordering codes, by the datasheet

MAX3232ECD: D (SOIC), 16 pins · 0 to 70 °C; package quantity 40 · p. 14
MAX3232ECDB: DB (SSOP), 16 pins · 0 to 70 °C; package quantity 80 · p. 14
MAX3232ECDBG4: DB (SSOP), 16 pins · 0 to 70 °C; package quantity 80 · p. 14
MAX3232ECDBR: DB (SSOP), 16 pins · 0 to 70 °C; package quantity 2000 · p. 14
MAX3232ECDE4: D (SOIC), 16 pins · 0 to 70 °C; package quantity 40 · p. 14
MAX3232ECDG4: D (SOIC), 16 pins · 0 to 70 °C; package quantity 40 · p. 14
MAX3232ECDR: D (SOIC), 16 pins · 0 to 70 °C; package quantity 2500 · p. 14
MAX3232ECDRE4: D (SOIC), 16 pins · 0 to 70 °C; package quantity 2500 · p. 14
MAX3232ECDW: DW (SOIC), 16 pins · 0 to 70 °C; package quantity 40 · p. 14
MAX3232ECDWG4: DW (SOIC), 16 pins · 0 to 70 °C; package quantity 40 · p. 14
MAX3232ECDWR: DW (SOIC), 16 pins · 0 to 70 °C; package quantity 2000 · p. 14
MAX3232ECPW: PW (TSSOP), 16 pins · 0 to 70 °C; package quantity 90 · p. 14
MAX3232ECPWE4: PW (TSSOP), 16 pins · 0 to 70 °C; package quantity 90 · p. 14
MAX3232ECPWR: PW (TSSOP), 16 pins · 0 to 70 °C; package quantity 2000 · p. 14
MAX3232EID: D (SOIC), 16 pins · -40 to 85 °C; package quantity 40 · p. 14
MAX3232EIDB: DB (SSOP), 16 pins · -40 to 85 °C; package quantity 80 · p. 14
MAX3232EIDBE4: DB (SSOP), 16 pins · -40 to 85 °C; package quantity 80 · p. 14
MAX3232EIDBG4: DB (SSOP), 16 pins · -40 to 85 °C; package quantity 80 · p. 15
MAX3232EIDBR: DB (SSOP), 16 pins · -40 to 85 °C; package quantity 2000 · p. 15
MAX3232EIDBRE4: DB (SSOP), 16 pins · -40 to 85 °C; package quantity 2000 · p. 15
MAX3232EIDE4: D (SOIC), 16 pins · -40 to 85 °C; package quantity 40 · p. 15
MAX3232EIDR: D (SOIC), 16 pins · -40 to 85 °C; package quantity 2500 · p. 15
MAX3232EIDW: DW (SOIC), 16 pins · -40 to 85 °C; package quantity 40 · p. 15
MAX3232EIDWG4: DW (SOIC), 16 pins · -40 to 85 °C; package quantity 40 · p. 15
MAX3232EIDWR: DW (SOIC), 16 pins · -40 to 85 °C; package quantity 2000 · p. 15
MAX3232EIPW: PW (TSSOP), 16 pins · -40 to 85 °C; package quantity 90 · p. 15
MAX3232EIPWE4: PW (TSSOP), 16 pins · -40 to 85 °C; package quantity 90 · p. 15
MAX3232EIPWG4: PW (TSSOP), 16 pins · -40 to 85 °C; package quantity 90 · p. 15
MAX3232EIPWR: PW (TSSOP), 16 pins · -40 to 85 °C; package quantity 2000 · p. 15
MAX3232EIPWRG4: PW (TSSOP), 16 pins · -40 to 85 °C; package quantity 2000 · p. 15

Parameters

Current - Supply: 300uA
Data Rate: 250kbps
ESD Protect: ±15kV
Features: Short-Circuit Protection
Junction Temperature(Max): 150℃
Number of Drivers: 2
Number of Receivers: 2
Operating Temperature: -40℃~+85℃
Quiescent Supply Current: 0.3mA
Thermal Resistance(Junction to Ambient): 76.1℃/W
Thermal Resistance(Junction to Board): 33.6℃/W
Thermal Resistance(Junction to Case): 36.7℃/W
Type: Transceiver
Voltage - Supply: 3V~5.5V
Voltage - Supply(Absolute Max): 6V
charge pump: Yes

Order codes

MAX3232EIDRLCSC C193666
MAX3232EIDLCSC C354117

Pinout

The pins of the MAX3232EID
Pin	Name	Type
1	C1+	Passive
2	VS+	Power out
3	C1-	Passive
4	C2+	Passive
5	C2-	Passive
6	VS-	Power out
7	T2OUT	Output
8	R2IN	Input
9	R2OUT	Output
10	T2IN	Input
11	T1IN	Input
12	R1OUT	Output
13	R1IN	Input
14	T1OUT	Output
15	GND	Power in
16	VCC	Power in

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Open-source boards using it

2 layers147.3 × 55.9 mm
NTerm2-S FT231
RetepV/nTerm2-S-FT231
This is my rendition of the uTerm2-S by Just4Fun (https://hackaday.io/project/181583-uterm2-s-a-multi-emulation-color-rs232-terminal). My one is in SMD, and I hopefully made it easily hand-solderable for everyone.
129 parts2

Parts like it

Questions

Is there a KiCad symbol and footprint for the MAX3232EID?

Yes. The symbol is Interface_UART:MAX3232 and the footprint Package_SO:SOIC-16_3.9x9.9mm_P1.27mm, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the MAX3232EID?

SOIC-16, with 16 pins. Its footprint is drawn on this page.

Where is the MAX3232EID datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the MAX3232EID?

JLCPCB lists it as part C193666, with 34,541 in stock; the sellers' links on this page open their listings.

What can replace the MAX3232EID?

Parts like it in the library: the SP3232EEN-L/TR by MaxLinear, the SP3232EEN(UMW) by UMW, the MAX3232ESE(UMW) by UMW and the SP232EEN-L/TR by MaxLinear. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the MAX3232EID?

1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.

MAX3232EID

Overview

Symbol

Footprint

From the datasheet

What it is and has

Around it

Specifications

Pins, by the datasheet

Ordering codes, by the datasheet

Open-source boards using it

NTerm2-S FT231

Parts like it

SP3232EEN-L/TR

SP3232EEN(UMW)

MAX3232ESE(UMW)

SP232EEN-L/TR

UT3232G-S16-R

MAX3232CD

GM3232ESA

SP3232EEN