Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package | Bulk,Tube |
| ProductStatus | Obsolete |
| Type | Transceiver |
| Protocol | RS232 |
| NumberofDrivers/Receivers | 1/1 |
| Duplex | Full |
| ReceiverHysteresis | 500 mV |
| DataRate | 250kbps |
| Voltage-Supply | 3V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 16-TSSOP (0.173, 4.40mm Width) |
Tổng quan
Description
The MAX3221EIPW is a single-channel RS-232 line driver/receiver designed by Texas Instruments. It operates from a single 3V to 5.5V power supply, making it suitable for battery-powered and low-voltage applications. This device is part of the MAX3221E family, featuring a low-power consumption design with a typical supply current of 1 µA in the shutdown mode, which conserves battery life.
Key features include an ESD protection of ±15 kV on all RS-232 pins, offering robust protection against electrostatic discharges. It supports data transmission rates up to 250 kbps, which suffices for many serial communication applications. The device's auto-powerdown feature is particularly beneficial in managing power efficiency by automatically shutting down the driver when the RS-232 link is inactive.
The MAX3221EIPW comes in a 20-pin TSSOP (PW) package, providing a compact form factor for space-constrained designs. It is used in various applications, including portable computing, networking devices, and peripherals requiring reliable RS-232 communication.
Key features include an ESD protection of ±15 kV on all RS-232 pins, offering robust protection against electrostatic discharges. It supports data transmission rates up to 250 kbps, which suffices for many serial communication applications. The device's auto-powerdown feature is particularly beneficial in managing power efficiency by automatically shutting down the driver when the RS-232 link is inactive.
The MAX3221EIPW comes in a 20-pin TSSOP (PW) package, providing a compact form factor for space-constrained designs. It is used in various applications, including portable computing, networking devices, and peripherals requiring reliable RS-232 communication.
Equivalent
The MAX3221EIPW is a RS-232 transceiver. Equivalent products include:
1. Texas Instruments SN75C3221E
2. Maxim Integrated MAX3232
3. Analog Devices ADM3202
4. STMicroelectronics ST3232
5. Intersil ISL32272
These alternatives provide similar functionalities such as low power consumption, ESD protection, and support for RS-232 communication standards, and can be used as substitutes based on specific design requirements and availability.
1. Texas Instruments SN75C3221E
2. Maxim Integrated MAX3232
3. Analog Devices ADM3202
4. STMicroelectronics ST3232
5. Intersil ISL32272
These alternatives provide similar functionalities such as low power consumption, ESD protection, and support for RS-232 communication standards, and can be used as substitutes based on specific design requirements and availability.
Features
The MAX3221EIPW is a single-channel RS-232 transceiver designed for communication in data transmission applications. It features a 1µA supply current, making it energy-efficient, and operates from a single 3V to 5.5V supply, which offers flexibility in different power environments. The transceiver includes a charge pump that requires only four small 0.1µF capacitors, contributing to a compact design.
This device ensures reliable data transmission with its integrated ESD protection of ±15kV on the RS-232 pins, safeguarding against electrostatic discharges. The MAX3221EIPW supports data rates up to 250kbps, suitable for a wide range of serial communication tasks. It also features an automatic shutdown function that reduces power consumption by turning off the device when no communication is detected.
The transceiver comes in a TSSOP package, which is suitable for space-constrained applications. Typical use cases include portable devices, handheld instruments, and other applications that require robust and low-power RS-232 communication.
This device ensures reliable data transmission with its integrated ESD protection of ±15kV on the RS-232 pins, safeguarding against electrostatic discharges. The MAX3221EIPW supports data rates up to 250kbps, suitable for a wide range of serial communication tasks. It also features an automatic shutdown function that reduces power consumption by turning off the device when no communication is detected.
The transceiver comes in a TSSOP package, which is suitable for space-constrained applications. Typical use cases include portable devices, handheld instruments, and other applications that require robust and low-power RS-232 communication.
Pinout
The MAX3221EIPW is a single-channel RS-232 line driver/receiver IC typically used in serial communication applications. It comes in a TSSOP (Thin Shrink Small Outline Package) with 16 pins. Here is a brief overview of its pin functions:
1. VCC: Supply voltage.
2. GND: Ground connection.
3. TXD: Transmitter data input.
4. RXD: Receiver data output.
5. RTS: Request to send (input).
6. CTS: Clear to send (output).
7. INVALID: Indicates valid RS-232 levels (output).
8. EN: Enable input.
9. V+: Positive voltage generated by the charge pump.
10. V-: Negative voltage generated by the charge pump.
11. EN (Transmit Enable): Controls the driver outputs.
12-16. Not typically user-accessible or may be used for additional functions depending on specific configuration needs.
The MAX3221EIPW features an integrated charge pump that eliminates the need for dual power supplies, making it suitable for low-power applications. It's often used in portable devices and other equipment requiring RS-232 communication.
1. VCC: Supply voltage.
2. GND: Ground connection.
3. TXD: Transmitter data input.
4. RXD: Receiver data output.
5. RTS: Request to send (input).
6. CTS: Clear to send (output).
7. INVALID: Indicates valid RS-232 levels (output).
8. EN: Enable input.
9. V+: Positive voltage generated by the charge pump.
10. V-: Negative voltage generated by the charge pump.
11. EN (Transmit Enable): Controls the driver outputs.
12-16. Not typically user-accessible or may be used for additional functions depending on specific configuration needs.
The MAX3221EIPW features an integrated charge pump that eliminates the need for dual power supplies, making it suitable for low-power applications. It's often used in portable devices and other equipment requiring RS-232 communication.
Manufacturer
The MAX3221EIPW is manufactured by Texas Instruments (TI). Texas Instruments is an American technology company that specializes in designing and manufacturing semiconductors and integrated circuits. It is one of the largest semiconductor companies in the world and provides a wide range of products including analog chips, digital signal processors, and microcontrollers, among others. TI's products are used in various applications such as consumer electronics, automotive, industrial equipment, and communication technology. The company is known for its innovation and contribution to the advancement of electronic technologies.
Application
The MAX3221EIPW is primarily used in applications requiring RS-232 communication. Key areas include serial data communication interfaces, industrial automation systems, embedded system communication, point-of-sale terminals, and medical devices. It is particularly useful in battery-powered and portable devices due to its low power consumption and automatic power-down features. The integrated transceivers facilitate reliable data transmission and reception between microcontrollers and RS-232 devices, making it suitable for interfacing PCs, sensors, and modems. Additionally, its compact size and wide operating temperature range make it an excellent choice for scenarios with space constraints and varied environmental conditions.
Package
The MAX3221EIPW is a part of the MAX3221 series of RS-232 transceivers. It comes in a TSSOP (Thin Shrink Small Outline Package) with 20 pins. This type of package is designed for surface mounting on printed circuit boards and is known for its compact size, making it suitable for portable and space-constrained applications.
