R8820I RDC [RDC Semiconductor], R8820I Datasheet - Page 2

• Manufacturer Part Number: R8820I
• Description: 16-Bit RISC Microcontroller
• Manufacturer: RDC [RDC Semiconductor]

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RDC
1. Features
Specifications subject to change without notice, contact your sales representatives for the most update information.
- RDC’s proprietary RISC architecture
- Five-stage pipeline
- CPU clock speed up to 25 MHz
- Supports CPU ID
- Supports 32 PIO pins
- Static & synthesizable design
- A multiplexed address and data bus which is
- Supports a non-multiplexed address bus A[19:0]
- 1M-byte memory address space
- 64K-byte I/O space
- PSRAM (Pseudo static RAM) interface with
- Supports serial ports with DMA transfers
- Supports two asynchronous serial channels with
CPU Core
Bus Interface
ROM/RAM Controller and Addressing Space
PSRAM Interface
Two Independent DMA Channels
Asynchronous Serial Channels
Interrupt Controller
compatible with the 80C186 microprocessor
auto-refresh control
hardware handshaking signals
®
RISC DSP Communication
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- The interrupt controller with seven maskable
- Programmable chip-select logic for memory or
- Three independent 16-bit timers and one
- Core voltage: 5V ± 5%
- I/O voltage: 5V ± 10%
- 100-pin PQFP
- 100-pin LQFP
Programmable Chip-select Logic
Programmable Wait-state Generators
Counter/Timers
Software is compatible with the 80C186
Operating Voltage Range
Operating Temperature: -40 ~ +85°C
Package Type
A Green Product
microprocessor
external interrupts and one non-maskable
external interrupt
I/O bus cycle decoder
independent watchdog timer
16-Bit RISC Microcontroller
REV 1.0
May. 31 2007
R8820I