MAX3232CPE

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MAX3232CPE

  • Manufacturer
  • Mfr. Part #MAX3232CPE
  • Package
  • Datasheet
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Specifications

Manufacturer Analog Devices
Package DIP-16

Overview

Description

The MAX3232CPE is a dual RS-232 transceiver from Maxim Integrated (now Analog Devices) that bridges UART-level signals (TTL/CMOS) to RS-232 levels. It contains two drivers (TTL/CMOS to RS-232) and two receivers (RS-232 to TTL/CMOS). It operates from a single supply, typically 3.0–5.5 V, and uses an on-chip charge pump with external capacitors to generate the RS-232 voltage rails. Four external capacitors (usually around 1 µF each) are required. Data rates are in the hundreds of kbps range depending on supply and capacitor values. The CPE suffix denotes a specific package/temperature variant. Typical uses include connecting a microcontroller’s UART to a PC RS-232 port, modems, GPS receivers, or other RS-232 devices. For exact electrical specs (voltage levels, thresholds, cap values, and pinout), consult the MAX3232CPE datasheet.

Features

Key features of MAX3232CPE:
- Dual RS-232 drivers and dual receivers (2 Tx, 2 Rx)
- Supports single-supply operation: 3.0 V to 5.5 V
- On-chip charge pump with four external capacitors to generate RS-232 voltage levels (≈ ±6 V to ±7 V)
- Requires only four external capacitors (0.1 µF to 1 µF)
- Data rates up to about 250 kbps
- TTL/CMOS logic inputs; RS-232 outputs meet EIA-232 standards
- Small 8-pin package; RoHS compliant; Commercial temperature range (-40°C to +85°C)
- ESD protection on RS-232 interface lines
- No external clocking or control signals required

Package

The MAX3232CPE is supplied in a 16-pin plastic dual‑in‑line (PDIP) through‑hole package (DIP‑16).

Pinout

Pin count: 16 pins (PDIP/SOIC package).
Function (concise):
- Dual RS-232 transceiver: converts between TTL/CMOS logic and RS‑232 signal levels.
- Typical pin roles:
- Power/charge-pump: VCC, GND, V+, V−, C1+, C1−, C2+, C2− (four external caps for internal charge pump)
- TTL/CMOS side: T1IN, T2IN (TTL inputs), R1OUT, R2OUT (TTL outputs)
- RS‑232 side: T1OUT, T2OUT (RS‑232 driver outputs), R1IN, R2IN (RS‑232 receiver inputs)
- Key features: single-supply 3.0–5.5 V operation, two drivers and two receivers for full‑duplex serial links.

Manufacturer

The MAX3232CPE is manufactured by Maxim Integrated (now part of Analog Devices, Inc. after a 2021 acquisition). Maxim/Analog Devices is a semiconductor company that designs and sells analog and mixed-signal integrated circuits (ICs) used in communications, industrial, automotive and consumer electronics.

Application

Typical applications of MAX3232CPE:
- Interfaces MCU/embedded systems to RS-232 devices (PCs, modems, printers, test equipment)
- Serial console and debugging ports
- Industrial automation/instrumentation (PLCs, data loggers, sensors)
- GPS receivers and telemetry systems
- Point-of-sale terminals and telecom/network equipment requiring RS-232 interfaces

Equivalent

Functionally equivalent parts are any dual RS‑232 transceiver for 3.0–5.5 V with external charge‑pump caps. Common equivalents: Maxim/Analog Devices MAX3232 (other suffixes), Analog Devices ADM3232, Exar/MaxLinear SP3232, Intersil/IDT/RENESAS ICL3232, STMicro ST3232. Verify pinout, voltage range and ESD specs against the MAX3232CPE datasheet before substituting.

Shipping

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Shipping Fee Reference (DHL/FedEx):

DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.

FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.

UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.

TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.

EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.

Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.

Payments

Payment Methods

The Payment term is 100% Prepaid.

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2. Credit/ Debit Card

3. Wire Transfer

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