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DS89C21TMX
+StücklisteIC TRANSCEIVER FULL 1/1 8SOIC
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HerstellerTexas Instruments
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Herstellerteil #DS89C21TMX
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Paket SOP8
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Auf Lager6571
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Spezifikationen
| Attribut | Wert |
| Package | Tape & Reel (TR),Bulk |
| ProductStatus | Obsolete |
| Type | Transceiver |
| Protocol | RS422, RS485 |
| NumberofDrivers/Receivers | 1/1 |
| Duplex | Full |
| ReceiverHysteresis | 50 mV |
| DataRate | 20Mbps |
| Voltage-Supply | 4.5V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Übersicht
Description
Key features include a rich set of peripherals such as UARTs for serial communication, multiple I/O ports, timers, and support for external memory interfaces, making it versatile for various applications. Its on-chip memory includes both Flash and RAM, allowing for efficient program storage and execution. The microcontroller also supports in-system programming, which enables firmware updates without removing the chip from the circuit.
This microcontroller is suitable for applications in consumer electronics, industrial automation, and data acquisition systems, where reliable performance and efficient power management are crucial. Its compact design and extended temperature range also make it a good fit for harsh or space-constrained environments.
Equivalent
Features
1. High Performance: It operates faster than traditional 8051 microcontrollers, with a performance up to 33 MHz.
2. On-chip Memory: Includes 1 KB of RAM and 8 KB of Flash EPROM, allowing for efficient storage and execution of programs.
3. I/O Ports: It offers several general-purpose I/O pins that can be used for interfacing with other devices.
4. Serial Communication: Equipped with an enhanced UART for serial communication purposes.
5. Timers/Counters: It has three 16-bit timer/counters for various timing and counting applications.
6. Compatibility: The DS89C21TMX is largely compatible with the standard 8051 instruction set, simplifying migration from older 8051-based designs.
7. Low Power: Features power-saving modes to reduce consumption, making it suitable for battery-operated applications.
8. Additional Features: Includes watchdog timer, power-fail reset, and a programmable counter array.
These features make it suitable for embedded applications requiring performance, efficiency, and ease of integration.
Pinout
1. VCC: Power supply pin.
2. GND: Ground pin.
3. RST: Reset pin, used to reset the microcontroller.
4. P0.0/T0: General-purpose I/O pin, which can also be used as Timer 0 input.
5. P0.1/T1: General-purpose I/O pin, which can also be used as Timer 1 input.
6. P0.2/RXD: General-purpose I/O pin, which can also be used as the receiver for the serial communication interface.
7. P0.3/TXD: General-purpose I/O pin, which can also be used as the transmitter for the serial communication interface.
8. P0.4/INT0: General-purpose I/O pin, which can also serve as an external interrupt input.
The DS89C21TMX is designed for applications requiring minimal pin count, offering robust functionality in a compact package, suitable for simple to moderate control tasks.