Description

The RF2890SR is an IC chip in the electronic component model category. It is a part of the H8S/2633 group, a series of microcomputers built around the H8S/2600 CPU, using Renesas’ proprietary architecture and equipped with peripheral functions. The H8S/2600 CPU has an internal 32-bit architecture and is provided with sixteen 16-bit general registers.

Specifications and features

• CPU: H8S/2600
• Architecture: 32-bit
• General registers: 16 x 16-bit
• Address space: 16-Mbyte linear
• Instruction set: Upward-compatible
• On-chip peripherals: DMA controller (DMAC)2, data transfer controller (DTC)2 bus masters, ROM and RAM memory, a 16-bit timer-pulse unit (TPU), programmable pulse generator (PPG)2, 8-bit timer2, 14-bit PWM timer (PWM)2, watchdog timer (WDT), serial communication interface (SCI, IrDA)2, A/D converter, D/A converter2, and I/O ports
• Optional on-chip interface: PC bus interface (IIC)2
• On-chip ROM availability: 256-kbyte flash memory (F-ZTAT™ version)*1 or as 256-, 128-, or 64-kbyte mask ROM

Application Scenarios

The RF2890SR can be used in various electronic devices that require a microcomputer with peripheral functions onboard. It is suitable for designs that need high-speed operation and can address a 16-Mbyte linear address space.

Comparison

• Upward-compatible instruction set with H8/300 and H8/300H CPU instructions at the object-code level simplifies migration from previous models
• On-chip peripherals reduce the need for additional components on the device
• Multiple options for on-chip ROM
• Optional on-chip interface for PC bus

• May not be suitable for designs that do not require the featured peripheral functions
• Not all operating modes may be necessary for certain designs, increasing unnecessary design complexity