at90s4434 Datasheet - Atmel
The AT90S4434 is an 8-bit microcontroller from the AVR family, featuring 4KB of flash memory, 256 bytes of EEPROM, and 128 bytes of SRAM.
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📝 Component Overview
The AT90S4434 is an 8-bit microcontroller from the AVR family, featuring 4KB of flash memory, 256 bytes of EEPROM, and 128 bytes of SRAM. It operates at a maximum frequency of 8MHz and has a wide range of peripherals including UART, SPI, and TWI. This microcontroller is suitable for a variety of applications including industrial control, consumer electronics, and automotive systems.
Key Features and Benefits
- 8-bit AVR RISC microcontroller
- 4KB of flash memory
- 256 bytes of EEPROM
- 128 bytes of SRAM
- Maximum frequency of 8MHz
- UART, SPI, and TWI peripherals
- Industrial control applications
- Consumer electronics applications
- Automotive systems applications
Typical Applications
- Industrial control systems
- Consumer electronics devices
- Automotive systems
- Medical devices
- Telecommunication equipment
- Computer peripherals
- Robotics and automation
📊 Complete Technical Specifications
Absolute Maximum Ratings
| Parameter | Value |
|---|---|
| Operating Temperature | -40°C to 85°C |
| Storage Temperature | -40°C to 125°C |
| Maximum Voltage | 6.0V |
Electrical Characteristics
| Parameter | Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage | Operating | 2.7V | 5.0V | 5.5V | V |
| Current Consumption | Active Mode | 1.5mA | 5.0mA | 10.0mA | mA |
Package Information
- PDIP-20: Plastic Dual In-Line Package, 20 leads
- TQFP-20: Thin Quad Flat Package, 20 leads
Pin Configuration
- Pin 1: VCC - Positive power supply
- Pin 2: GND - Ground
🔧 Application Guidelines
Design Considerations
When designing with the AT90S4434, consider the operating voltage range, maximum frequency, and peripheral requirements. Ensure proper decoupling and bypassing of the power supply lines.
Installation Guidelines
The AT90S4434 is available in PDIP-20 and TQFP-20 packages. Ensure proper handling and storage to prevent damage. Follow standard SMT or through-hole assembly procedures for mounting.
Operational Notes
The AT90S4434 has a reset circuit that can be triggered by an external signal or by a watchdog timer. Ensure proper configuration of the reset circuit to prevent unintended resets.