Thông số kỹ thuật
| thuộc tính | Giá trị |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Type | Transceiver |
| Protocol | RS232 |
| Number of Drivers/Receivers | 2/2 |
| Duplex | Full |
| Receiver Hysteresis | 500 mV |
| Data Rate | 120Kbps |
| Voltage - Supply | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
Tổng quan
Description
MAX202EESE+T is a Maxim (now Analog Devices) dual RS-232 transceiver. It provides two RS-232 drivers and two receivers, letting a microcontroller or UART talk to RS-232 devices (like a PC COM port) from a single supply.
Key points:
- Single-supply operation (typically 3–5.5 V) with an onboard charge-pump to generate RS-232 voltage levels.
- Converts TTL/CMOS logic to RS-232 levels and RS-232 levels back to TTL/CMOS.
- Data rates suitable for standard serial links (typical around 120 kbps for MAX202-class devices).
- Requires external charge-pump capacitors (values per datasheet).
- +T suffix usually denotes Tape-and-Reel packaging; EESE indicates a specific device variant/temperature/packaging code—verify exact specs in the datasheet for your lot.
Common use: MCU to PC serial interface, modems, data loggers, and other RS-232 interconnections. For exact voltage, speed, temperature range, and pinout, consult the MAX202EESE+T datasheet.
Key points:
- Single-supply operation (typically 3–5.5 V) with an onboard charge-pump to generate RS-232 voltage levels.
- Converts TTL/CMOS logic to RS-232 levels and RS-232 levels back to TTL/CMOS.
- Data rates suitable for standard serial links (typical around 120 kbps for MAX202-class devices).
- Requires external charge-pump capacitors (values per datasheet).
- +T suffix usually denotes Tape-and-Reel packaging; EESE indicates a specific device variant/temperature/packaging code—verify exact specs in the datasheet for your lot.
Common use: MCU to PC serial interface, modems, data loggers, and other RS-232 interconnections. For exact voltage, speed, temperature range, and pinout, consult the MAX202EESE+T datasheet.
Equivalent
Equivalent RS-232 transceivers (2-channel, 5V, charge-pump):
- Analog Devices ADM202/ADM202A
- STMicroelectronics SP232/SP232E
For cross-compatibility, you can also consider other 5V RS-232 transceivers in the MAX family (e.g., MAX3221/3223), but verify pinout and packaging.
- Analog Devices ADM202/ADM202A
- STMicroelectronics SP232/SP232E
For cross-compatibility, you can also consider other 5V RS-232 transceivers in the MAX family (e.g., MAX3221/3223), but verify pinout and packaging.
Features
Here are the key features of MAX202EESE+T (dual RS-232 transceiver):
- 2 drivers and 2 receivers (dual RS-232 transceiver)
- Single 5V supply (typical 4.5–5.5V)
- Internal charge-pump to generate RS-232 level voltages
- Requires external charge-pump capacitors (per datasheet)
- RS-232 compliant outputs; TTL/CMOS-compatible inputs
- Data rate up to ~120 kbps (typical)
- Low quiescent current; supports low-power/shutdown operation
- ESD protection on RS-232 lines; short-circuit protection
- 8-pin package; RoHS compliant
- Extended temperature option: -40°C to +85°C (E variant)
- Packaging: Tape & Reel available (suffix +T); SE denotes package variant
Note: Refer to the datasheet for exact capacitor values and operating conditions.
- 2 drivers and 2 receivers (dual RS-232 transceiver)
- Single 5V supply (typical 4.5–5.5V)
- Internal charge-pump to generate RS-232 level voltages
- Requires external charge-pump capacitors (per datasheet)
- RS-232 compliant outputs; TTL/CMOS-compatible inputs
- Data rate up to ~120 kbps (typical)
- Low quiescent current; supports low-power/shutdown operation
- ESD protection on RS-232 lines; short-circuit protection
- 8-pin package; RoHS compliant
- Extended temperature option: -40°C to +85°C (E variant)
- Packaging: Tape & Reel available (suffix +T); SE denotes package variant
Note: Refer to the datasheet for exact capacitor values and operating conditions.
Pinout
- Pin count: 8 pins (8-pin SOIC package; +T indicates Tape & Reel).
- Function: Dual RS-232 transceiver (two drivers and two receivers) with internal charge pump to generate RS-232 voltages from a single supply. It interfaces TTL/CMOS logic to RS-232: TTL inputs (TIN1/TIN2), RS-232 outputs (TOUT1/TOUT2), RS-232 inputs (RIN1/RIN2), and TTL outputs (ROUT1/ROUT2). Used to connect microcontrollers to RS-232 ports.
- Function: Dual RS-232 transceiver (two drivers and two receivers) with internal charge pump to generate RS-232 voltages from a single supply. It interfaces TTL/CMOS logic to RS-232: TTL inputs (TIN1/TIN2), RS-232 outputs (TOUT1/TOUT2), RS-232 inputs (RIN1/RIN2), and TTL outputs (ROUT1/ROUT2). Used to connect microcontrollers to RS-232 ports.
Manufacturer
Manufacturer: Maxim Integrated. What kind of company: an American multinational semiconductor company that designs and manufactures analog and mixed-signal integrated circuits; it is now a brand of Analog Devices, Inc. (ADI) after the acquisition.
Application
Max202EESE+T is a 2-driver/2-receiver RS-232 transceiver. Typical applications include:
- RS-232 interfaces for microcontrollers and embedded systems (PC serial, USB-to-serial adapters)
- Industrial controls and PLCs
- Data acquisition and test/instrumentation equipment
- Point-of-sale devices, printers, and barcode scanners
- Modems, routers, and telecom/network console ports
- Any system needing RS-232 level translation from a single 5V supply
- RS-232 interfaces for microcontrollers and embedded systems (PC serial, USB-to-serial adapters)
- Industrial controls and PLCs
- Data acquisition and test/instrumentation equipment
- Point-of-sale devices, printers, and barcode scanners
- Modems, routers, and telecom/network console ports
- Any system needing RS-232 level translation from a single 5V supply
Package
8-pin SOIC (SOP-8) package; “+T” denotes Tape-and-Reel packaging.
