eZ80F91

The eZ80F91 microcontroller is a member of ZiLOG's eZ80Acclaim! product family, which offers on-chip Flash versions of ZiLOG's eZ80 ^® processor core. The eZ80F91 offers the following features:
•50MHz High-Performance eZ80^®CPU
•256KB Flash Program Memory plus extra 512B device configuration Flash memory
•8KB on-chip high-speed SRAM
•32 bits of General-Purpose I/O
•10/100BaseT Ethernet Media Access Controller (EMAC) with 8KB High-Speed Frame Buffer
•IrDA™-compatible Infrared Encoder/Decoder
•2 UARTs with independent baud rate generators
•I²C with independent clock rate generator
•SPI with independent clock rate generator
•Four Counter/Timers with prescalers supporting event counting, input capture, output compare,and PWM modes
•Watch-Dog Timer with internal RC clocking option
•Real-time clock with on-chip 32kHz oscillator,selectable 50/60 Hz input, and separate RTC_V_DD pin for battery backup.
•Glueless external memory interface with 4 Chip-Selects/Wait-State Generators and external WAIT input pin. Supports Intel and Motorola buses.
•JTAG Interface supporting emulation features
•Low-power PLL and on-chip oscillator
•Programmable-priority vectored interrupts, nonmaskable interrupts, and interrupt controller
•New DMA-like eZ80^®CPU instructions
•Power management features supporting HALT/SLEEP modes and selective peripheral powerdown controls
•144-pin LQFP package
•3.03.6 V supply voltage with 5V tolerantinputs
•Operating Temperature Ranges:
  Standard: 0 to +70
  High: 0 to +105

The eZ80F91 device is an industry first, featuring a high-performance 8-bit microcontroller with an integrated 10/100 BaseT Ethernet Media Access controller (EMAC). It is a power-efficient, optimized pipeline architecture microcontroller with a maximum operating speed of 50 MHz. Offering on-chip Flash memory, SRAM, Ethernet MAC,and rich peripherals, the eZ80F91 is well-suited for industrial, communication, automation, security,and embedded Internet applications.