仕様
| 属性 | 値 |
| Package / Case | Tube,Tube |
| Part Status | Obsolete |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Full |
| Receiver Hysteresis | 500 mV |
| Data Rate | 250kbps |
| Voltage - Supply | 3V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C |
| Mounting Type | Surface Mount |
概要
Description
The MAX3221ECAE is a single-channel RS-232 line driver/receiver designed by Maxim Integrated, now part of Analog Devices. It is designed for interfacing between TTL/CMOS logic levels and RS-232-compliant signaling. The device operates from a single 3V to 5.5V supply, making it suitable for a wide range of applications, including portable and battery-powered devices.
Key features of the MAX3221ECAE include a low supply current, typically 1µA in shutdown mode, which extends battery life in portable devices. It offers a data rate of up to 250 kbps, ensuring reliable communication in high-speed applications. The device incorporates an internal charge pump, eliminating the need for external capacitors in some configurations, thereby simplifying the design and reducing the overall board space.
The MAX3221ECAE is available in a 16-pin TSSOP package, providing a compact footprint. It also includes electrostatic discharge (ESD) protection, enhancing its robustness in harsh environments. This makes it suitable for use in industrial, telecommunications, and consumer electronics applications.
Key features of the MAX3221ECAE include a low supply current, typically 1µA in shutdown mode, which extends battery life in portable devices. It offers a data rate of up to 250 kbps, ensuring reliable communication in high-speed applications. The device incorporates an internal charge pump, eliminating the need for external capacitors in some configurations, thereby simplifying the design and reducing the overall board space.
The MAX3221ECAE is available in a 16-pin TSSOP package, providing a compact footprint. It also includes electrostatic discharge (ESD) protection, enhancing its robustness in harsh environments. This makes it suitable for use in industrial, telecommunications, and consumer electronics applications.
Equivalent
The MAX3221ECAE is a single-channel RS-232 line driver/receiver with a charge pump and shutdown mode. Equivalent products include:
1. Texas Instruments: TRS3221E
2. STMicroelectronics: ST3221E
3. Analog Devices: ADM3221E
4. Microchip Technology: SP3221E
These alternatives provide similar functionality, including RS-232 communication, low power consumption, and integrated charge pumps. Always check the datasheets to confirm compatibility with your specific application.
1. Texas Instruments: TRS3221E
2. STMicroelectronics: ST3221E
3. Analog Devices: ADM3221E
4. Microchip Technology: SP3221E
These alternatives provide similar functionality, including RS-232 communication, low power consumption, and integrated charge pumps. Always check the datasheets to confirm compatibility with your specific application.
Features
The MAX3221ECAE is a single-channel RS-232 transceiver with the following key features:
1. Low Power Consumption: Operates from a single +3V to +5.5V supply with low power requirements, featuring automatic shutdown to conserve energy when inactive.
2. Integrated Charge Pump: Includes a built-in charge pump that requires no external capacitors, simplifying design and reducing board space.
3. Data Rate: Supports data rates up to 250 kbps, making it suitable for standard serial communication applications.
4. ESD Protection: Provides enhanced electrostatic discharge protection exceeding ±15kV using the Human Body Model (HBM).
5. Small Package: Comes in a compact TSSOP package, making it ideal for space-constrained applications.
6. Compatibility: Fully compliant with EIA/TIA-232 and V.28/V.24 communication standards.
7. Automatic Shutdown and Wake-up: Features automatic shutdown and wake-up capability, which helps in reducing power consumption by shutting down the transmitter and receiver when the communication line is inactive.
These features make the MAX3221ECAE well-suited for battery-powered and portable devices requiring reliable RS-232 communication.
1. Low Power Consumption: Operates from a single +3V to +5.5V supply with low power requirements, featuring automatic shutdown to conserve energy when inactive.
2. Integrated Charge Pump: Includes a built-in charge pump that requires no external capacitors, simplifying design and reducing board space.
3. Data Rate: Supports data rates up to 250 kbps, making it suitable for standard serial communication applications.
4. ESD Protection: Provides enhanced electrostatic discharge protection exceeding ±15kV using the Human Body Model (HBM).
5. Small Package: Comes in a compact TSSOP package, making it ideal for space-constrained applications.
6. Compatibility: Fully compliant with EIA/TIA-232 and V.28/V.24 communication standards.
7. Automatic Shutdown and Wake-up: Features automatic shutdown and wake-up capability, which helps in reducing power consumption by shutting down the transmitter and receiver when the communication line is inactive.
These features make the MAX3221ECAE well-suited for battery-powered and portable devices requiring reliable RS-232 communication.
Pinout
The MAX3221ECAE is a RS-232 transceiver IC, part of the MAX3221 series by Maxim Integrated. It is designed for use in applications that require RS-232 communication. The device is housed in a TSSOP (Thin Shrink Small Outline Package) with a pin-count of 16.
The functions of the pins are as follows:
1. VCC: Supply voltage.
2. GND: Ground.
3. TX: Transmitter output (RS-232 level).
4. RX: Receiver input (RS-232 level).
5. DIN: Driver input (TTL/CMOS level).
6. DOUT: Receiver output (TTL/CMOS level).
7. INVALID: Output indicating valid RS-232 levels.
8. FORCEOFF: Input to force transmitter and receiver off.
9. FORCEON: Input to force transmitter on.
10. STATUS: Indicates shutdown or active mode.
11. EN: Enable input.
12. C1+, C1-, C2+, C2-: Capacitor connections for the charge pump.
13. V- and V+: Negative and positive voltage outputs from the charge pump.
These pins allow the MAX3221ECAE to convert logic level signals to RS-232 levels, making it suitable for interfacing between microcontrollers and RS-232 devices.
The functions of the pins are as follows:
1. VCC: Supply voltage.
2. GND: Ground.
3. TX: Transmitter output (RS-232 level).
4. RX: Receiver input (RS-232 level).
5. DIN: Driver input (TTL/CMOS level).
6. DOUT: Receiver output (TTL/CMOS level).
7. INVALID: Output indicating valid RS-232 levels.
8. FORCEOFF: Input to force transmitter and receiver off.
9. FORCEON: Input to force transmitter on.
10. STATUS: Indicates shutdown or active mode.
11. EN: Enable input.
12. C1+, C1-, C2+, C2-: Capacitor connections for the charge pump.
13. V- and V+: Negative and positive voltage outputs from the charge pump.
These pins allow the MAX3221ECAE to convert logic level signals to RS-232 levels, making it suitable for interfacing between microcontrollers and RS-232 devices.
Manufacturer
The MAX3221ECAE is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Maxim Integrated was an American company known for designing and manufacturing analog and mixed-signal integrated circuits. It provided solutions in power management, interface, and communication, among other areas. The company was recognized for its expertise in developing semiconductor products that enhance the performance and efficiency of electronic devices.
In 2021, Analog Devices, Inc., a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits, acquired Maxim Integrated. This acquisition expanded Analog Devices' product portfolio, making it one of the largest semiconductor companies in the world. Analog Devices serves a wide range of industries, including communications, automotive, industrial, healthcare, and consumer electronics, providing solutions that bridge the physical and digital worlds to enable breakthrough innovations.
In 2021, Analog Devices, Inc., a global leader in the design and manufacturing of analog, mixed-signal, and digital signal processing (DSP) integrated circuits, acquired Maxim Integrated. This acquisition expanded Analog Devices' product portfolio, making it one of the largest semiconductor companies in the world. Analog Devices serves a wide range of industries, including communications, automotive, industrial, healthcare, and consumer electronics, providing solutions that bridge the physical and digital worlds to enable breakthrough innovations.
Application
The MAX3221ECAE is a single-channel RS-232 line driver/receiver designed for applications requiring a reliable serial communication interface. It is commonly used in areas such as industrial automation, point-of-sale systems, and networking equipment. The device supports battery-powered and portable applications due to its low power consumption and automatic power-down feature. Additionally, it's utilized in handheld devices, embedded systems, and any application needing robust RS-232 communication over longer cable lengths or in electrically noisy environments. Its ESD protection makes it suitable for use in situations where electrical discharges are a concern.
Package
The MAX3221ECAE is an RS-232 transceiver in a 16-pin SSOP (Shrink Small-Outline Package) package. It's designed for portable or battery-powered devices, providing a compact and efficient solution for serial communication.
