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MAX232ACSE+T
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Analog Devices Inc Maxim Integrated RS232 ICs, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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MAX232ACSE+T
Analog Devices Inc Maxim Integrated · RS232 ICs · SOIC-16
MAX232ACSE+T from Analog Devices Inc Maxim Integrated, in a SOIC-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 | C1+ | passive | Positive terminal of the C1 charge-pump capacitor in the +5V-to-+10V voltage doubler. |
| 2 | V+ | power_out | Doubled positive supply output of about +10V unloaded; it is not regulated, drops with load current, and must not be loaded to violate the minimum ±5V RS-232 driver output. |
| 3 | C1- | passive | Negative terminal of the C1 charge-pump capacitor in the voltage doubler. |
| 4 | C2+ | passive | Positive terminal of the C2 charge-pump capacitor in the +10V-to-−10V voltage inverter. |
| 5 | C2- | passive | Negative terminal of the C2 charge-pump capacitor in the voltage inverter. |
| 6 | V- | power_out | Inverted negative supply output of about −10V unloaded; it is not regulated and drops with load current. |
| 7 | T2OUT | output | RS-232 driver 2 output, typically ±8V when loaded with a nominal 5kΩ receiver, and can be driven to ±15V; it goes high-impedance in shutdown or when power is removed. |
| 8 | R2IN | input | RS-232 receiver 2 input, rated for ±30V on the MAX232 and containing an internal 5kΩ terminating resistor. |
| 9 | R2OUT | output | TTL/CMOS receiver 2 output that inverts the RS-232 input and swings between GND and VCC (absolute range −0.3V to VCC+0.3V). |
| 10 | T2IN | input | TTL/CMOS driver 2 input with an internal 400kΩ pullup to VCC, so an unused input can be left unconnected; absolute maximum is VCC−0.3V. |
| 11 | T1IN | input | TTL/CMOS driver 1 input with an internal 400kΩ pullup to VCC, so an unused input can be left unconnected; absolute maximum is VCC−0.3V. |
| 12 | R1OUT | output | TTL/CMOS receiver 1 output that inverts the RS-232 input and swings between GND and VCC (absolute range −0.3V to VCC+0.3V). |
| 13 | R1IN | input | RS-232 receiver 1 input, rated for ±30V on the MAX232 and containing an internal 5kΩ terminating resistor. |
| 14 | T1OUT | output | RS-232 driver 1 output, typically ±8V when loaded with a nominal 5kΩ receiver, and can be driven to ±15V; it goes high-impedance in shutdown or when power is removed. |
| 15 | GND | power_in | Ground reference; all absolute maximum ratings and voltages are referenced to GND. |
| 16 | VCC | power_in | Supply input of +5V ±10% (absolute range −0.3V to +6V), to be decoupled to GND with a capacitor placed close to the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | SOIC-16 |
| Category | Interface |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage (VCC) | VCC | -0.3 | 6 | V | Voltages referenced to GND | 2 | |
| V+ output voltage | V+ | 14 | V | Note 1; absolute value (VCC - 0.3V) to +14V, referenced to GND | 2 | ||
| V- output voltage | V- | -14 | 0.3 | V | Note 1; +0.3V to -14V, referenced to GND | 2 | |
| TIN input voltage | TIN | -0.3 | V | Upper limit is (VCC - 0.3V); lower limit -0.3V | 2 | ||
| RIN input voltage (except MAX220) | RIN | -30 | 30 | V | Except MAX220 | 2 | |
| TOUT output voltage (except MAX220) | TOUT | -15 | 15 | V | Except MAX220; Note 2 (input voltage with TOUT high-impedance, VSHDN or VCC = 0V) | 2 | |
| ROUT output voltage | ROUT | -0.3 | V | Upper limit is (VCC + 0.3V) | 2 | ||
| Storage temperature range | TSTG | -65 | 160 | °C | 2 | ||
| Lead temperature (soldering, 10s) | 300 | °C | Soldering, 10s | 2 | |||
| Operating temperature range (MAX2__AC__ commercial) | TA | 0 | 70 | °C | MAX2__AC__, MAX2__C__ grade | 2 | |
| Supply voltage range | VCC | 4.5 | 5.5 | V | VCC = +5V ±10% | 3 | |
| Input logic-low voltage | VIL | 0.8 | V | 2 | |||
| Input logic-high voltage | VIH | 2 | V | All devices except MAX220 | 2 | ||
| Logic pullup/input current | IIH | 5 | 40 | μA | All except MAX220, normal operation | 2 | |
| Output voltage swing (RS-232 transmitter) | VOUT | 5 | 8 | V | All transmitter outputs loaded with 3k to GND; printed ±5 min, ±8 typ | 2 | |
| Output leakage current | IOUT(leak) | -10 | 0.01 | 10 | μA | VCC = VSHDN = 0V, VOUT = ±15V | 2 |
| Data rate | 116 | 200 | kbps | 2 | |||
| Transmitter output resistance | ROUT | 300 | Ω | VCC = V+ = V- = 0V, VOUT = ±2V; printed max 10M (not entered) | 2 | ||
| Transmitter output short-circuit current | IOS | 7 | 22 | mA | VOUT = 0V; printed ±7 typ, ±22 max | 2 | |
| RS-232 input voltage operating range | VRIN | -30 | 30 | V | Except MAX220 | 2 | |
| RS-232 input threshold low | VTH(L) | 0.8 | 1.3 | V | VCC = +5V; all except MAX243 R2IN | 2 | |
| RS-232 input threshold high | VTH(H) | 1.8 | 2.4 | V | VCC = +5V; all except MAX243 R2IN | 2 | |
| RS-232 input hysteresis | VHYS | 0.2 | 0.5 | 1 | V | VCC = +5V, no hysteresis in shutdown; all except MAX220/MAX243 | 3 |
| RS-232 input resistance | RIN | 3 | 5 | 7 | kΩ | 3 | |
| TTL/CMOS output voltage low | VOL | 0.2 | 0.4 | V | IOUT = 3.2mA | 3 | |
| TTL/CMOS output voltage high | VOH | 3.5 | V | IOUT = -1.0mA; printed max is VCC - 0.2V (expression, not entered) | 3 | ||
| TTL/CMOS output short-circuit current, sourcing | IOS(src) | -2 | -10 | mA | VOUT = VGND | 3 | |
| TTL/CMOS output short-circuit current, sinking | IOS(snk) | 10 | 30 | mA | VOUT = VCC | 3 | |
| TTL/CMOS output leakage current | IOZ | -10 | 0.05 | 10 | μA | VSHDN = VCC or VEN = VCC (VSHDN = 0V for MAX222), 0V ≤ VOUT ≤ VCC | 3 |
| VCC supply current, no load | ICC | 4 | 10 | mA | No load, VSHDN = VCC; MAX222/MAX232A/MAX233A/MAX242/MAX243 | 3 | |
| VCC supply current, 3k load both inputs | ICC | 15 | mA | 3k load, both inputs; single printed value entered as max, column inferred | 3 | ||
| Transmitter transition slew rate | SR | 6 | 12 | 30 | V/μs | CL = 50pF to 2500pF, RL = 3k to 7k, VCC = +5V, TA = +25°C, measured from +3V to -3V or -3V to +3V | 3 |
| Transmitter propagation delay, TTL to RS-232 high-to-low | tPHLT | 1.3 | 3.5 | μs | Figure 1 | 3 | |
| Transmitter propagation delay, TTL to RS-232 low-to-high | tPLHT | 1.5 | 3.5 | μs | Figure 1 | 3 | |
| Receiver propagation delay, RS-232 to TTL high-to-low | tPHLR | 0.5 | 1 | μs | Figure 2 | 4 | |
| Receiver propagation delay, RS-232 to TTL low-to-high | tPLHR | 0.6 | 1 | μs | Figure 2 | 4 | |
| Transmitter + to - propagation delay difference | tPHLT - tPLHT | 300 | ns | Normal operation; single printed value entered as max | 4 | ||
| Receiver + to - propagation delay difference | tPHLR - tPLHR | 100 | ns | Normal operation; single printed value entered as max | 4 |
CAD (KiCad official)
- Symbol:
MAX232ACSE+T - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
max232acse-t-etched.step/max232acse-t-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);max232acse-t.step/max232acse-t.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices Inc Maxim Integrated datasheet (38 pp, sha256
e41ce5a309c13439, retrieved 2026-10-19, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).
# MAX232ACSE+T
**Analog Devices Inc Maxim Integrated** · RS232 ICs · SOIC-16
MAX232ACSE+T from Analog Devices Inc Maxim Integrated, in a SOIC-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 | C1+ | passive | Positive terminal of the C1 charge-pump capacitor in the +5V-to-+10V voltage doubler. |
| 2 | V+ | power_out | Doubled positive supply output of about +10V unloaded; it is not regulated, drops with load current, and must not be loaded to violate the minimum ±5V RS-232 driver output. |
| 3 | C1- | passive | Negative terminal of the C1 charge-pump capacitor in the voltage doubler. |
| 4 | C2+ | passive | Positive terminal of the C2 charge-pump capacitor in the +10V-to-−10V voltage inverter. |
| 5 | C2- | passive | Negative terminal of the C2 charge-pump capacitor in the voltage inverter. |
| 6 | V- | power_out | Inverted negative supply output of about −10V unloaded; it is not regulated and drops with load current. |
| 7 | T2OUT | output | RS-232 driver 2 output, typically ±8V when loaded with a nominal 5kΩ receiver, and can be driven to ±15V; it goes high-impedance in shutdown or when power is removed. |
| 8 | R2IN | input | RS-232 receiver 2 input, rated for ±30V on the MAX232 and containing an internal 5kΩ terminating resistor. |
| 9 | R2OUT | output | TTL/CMOS receiver 2 output that inverts the RS-232 input and swings between GND and VCC (absolute range −0.3V to VCC+0.3V). |
| 10 | T2IN | input | TTL/CMOS driver 2 input with an internal 400kΩ pullup to VCC, so an unused input can be left unconnected; absolute maximum is VCC−0.3V. |
| 11 | T1IN | input | TTL/CMOS driver 1 input with an internal 400kΩ pullup to VCC, so an unused input can be left unconnected; absolute maximum is VCC−0.3V. |
| 12 | R1OUT | output | TTL/CMOS receiver 1 output that inverts the RS-232 input and swings between GND and VCC (absolute range −0.3V to VCC+0.3V). |
| 13 | R1IN | input | RS-232 receiver 1 input, rated for ±30V on the MAX232 and containing an internal 5kΩ terminating resistor. |
| 14 | T1OUT | output | RS-232 driver 1 output, typically ±8V when loaded with a nominal 5kΩ receiver, and can be driven to ±15V; it goes high-impedance in shutdown or when power is removed. |
| 15 | GND | power_in | Ground reference; all absolute maximum ratings and voltages are referenced to GND. |
| 16 | VCC | power_in | Supply input of +5V ±10% (absolute range −0.3V to +6V), to be decoupled to GND with a capacitor placed close to the device. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc Maxim Integrated |
| Package | SOIC-16 |
| Category | Interface |
| 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 |
|---|---|---|---|---|---|---|---|
| Supply voltage (VCC) | VCC | -0.3 | | 6 | V | Voltages referenced to GND | 2 |
| V+ output voltage | V+ | | | 14 | V | Note 1; absolute value (VCC - 0.3V) to +14V, referenced to GND | 2 |
| V- output voltage | V- | -14 | | 0.3 | V | Note 1; +0.3V to -14V, referenced to GND | 2 |
| TIN input voltage | TIN | -0.3 | | | V | Upper limit is (VCC - 0.3V); lower limit -0.3V | 2 |
| RIN input voltage (except MAX220) | RIN | -30 | | 30 | V | Except MAX220 | 2 |
| TOUT output voltage (except MAX220) | TOUT | -15 | | 15 | V | Except MAX220; Note 2 (input voltage with TOUT high-impedance, VSHDN or VCC = 0V) | 2 |
| ROUT output voltage | ROUT | -0.3 | | | V | Upper limit is (VCC + 0.3V) | 2 |
| Storage temperature range | TSTG | -65 | | 160 | °C | | 2 |
| Lead temperature (soldering, 10s) | | | | 300 | °C | Soldering, 10s | 2 |
| Operating temperature range (MAX2__AC__ commercial) | TA | 0 | | 70 | °C | MAX2__AC__, MAX2__C__ grade | 2 |
| Supply voltage range | VCC | 4.5 | | 5.5 | V | VCC = +5V ±10% | 3 |
| Input logic-low voltage | VIL | | | 0.8 | V | | 2 |
| Input logic-high voltage | VIH | 2 | | | V | All devices except MAX220 | 2 |
| Logic pullup/input current | IIH | 5 | | 40 | μA | All except MAX220, normal operation | 2 |
| Output voltage swing (RS-232 transmitter) | VOUT | 5 | 8 | | V | All transmitter outputs loaded with 3k to GND; printed ±5 min, ±8 typ | 2 |
| Output leakage current | IOUT(leak) | -10 | 0.01 | 10 | μA | VCC = VSHDN = 0V, VOUT = ±15V | 2 |
| Data rate | | 116 | 200 | | kbps | | 2 |
| Transmitter output resistance | ROUT | 300 | | | Ω | VCC = V+ = V- = 0V, VOUT = ±2V; printed max 10M (not entered) | 2 |
| Transmitter output short-circuit current | IOS | | 7 | 22 | mA | VOUT = 0V; printed ±7 typ, ±22 max | 2 |
| RS-232 input voltage operating range | VRIN | -30 | | 30 | V | Except MAX220 | 2 |
| RS-232 input threshold low | VTH(L) | 0.8 | 1.3 | | V | VCC = +5V; all except MAX243 R2IN | 2 |
| RS-232 input threshold high | VTH(H) | 1.8 | 2.4 | | V | VCC = +5V; all except MAX243 R2IN | 2 |
| RS-232 input hysteresis | VHYS | 0.2 | 0.5 | 1 | V | VCC = +5V, no hysteresis in shutdown; all except MAX220/MAX243 | 3 |
| RS-232 input resistance | RIN | 3 | 5 | 7 | kΩ | | 3 |
| TTL/CMOS output voltage low | VOL | | 0.2 | 0.4 | V | IOUT = 3.2mA | 3 |
| TTL/CMOS output voltage high | VOH | 3.5 | | | V | IOUT = -1.0mA; printed max is VCC - 0.2V (expression, not entered) | 3 |
| TTL/CMOS output short-circuit current, sourcing | IOS(src) | -2 | | -10 | mA | VOUT = VGND | 3 |
| TTL/CMOS output short-circuit current, sinking | IOS(snk) | 10 | | 30 | mA | VOUT = VCC | 3 |
| TTL/CMOS output leakage current | IOZ | -10 | 0.05 | 10 | μA | VSHDN = VCC or VEN = VCC (VSHDN = 0V for MAX222), 0V ≤ VOUT ≤ VCC | 3 |
| VCC supply current, no load | ICC | | 4 | 10 | mA | No load, VSHDN = VCC; MAX222/MAX232A/MAX233A/MAX242/MAX243 | 3 |
| VCC supply current, 3k load both inputs | ICC | | | 15 | mA | 3k load, both inputs; single printed value entered as max, column inferred | 3 |
| Transmitter transition slew rate | SR | 6 | 12 | 30 | V/μs | CL = 50pF to 2500pF, RL = 3k to 7k, VCC = +5V, TA = +25°C, measured from +3V to -3V or -3V to +3V | 3 |
| Transmitter propagation delay, TTL to RS-232 high-to-low | tPHLT | | 1.3 | 3.5 | μs | Figure 1 | 3 |
| Transmitter propagation delay, TTL to RS-232 low-to-high | tPLHT | | 1.5 | 3.5 | μs | Figure 1 | 3 |
| Receiver propagation delay, RS-232 to TTL high-to-low | tPHLR | | 0.5 | 1 | μs | Figure 2 | 4 |
| Receiver propagation delay, RS-232 to TTL low-to-high | tPLHR | | 0.6 | 1 | μs | Figure 2 | 4 |
| Transmitter + to - propagation delay difference | tPHLT - tPLHT | | | 300 | ns | Normal operation; single printed value entered as max | 4 |
| Receiver + to - propagation delay difference | tPHLR - tPLHR | | | 100 | ns | Normal operation; single printed value entered as max | 4 |
## CAD (KiCad official)
- Symbol: `MAX232ACSE+T`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files: `max232acse-t-etched.step` / `max232acse-t-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max232acse-t.step` / `max232acse-t.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Analog Devices Inc Maxim Integrated datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586171872287330304) (38 pp, sha256 `e41ce5a309c13439`, retrieved 2026-10-19, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-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](docs/max232acse-t-datasheet.pdf)