CR16MES5 Datasheet, PDF (1/99 Pages) National Semiconductor (TI) – Family of CompactRISC 16-Bit Microcontrollers

December 2001
CR16MES5/CR16MES9/CR16MFS5/CR16MFS9/
CR16MHS5/CR16MHS9/CR16MNS5/CR16MNS9/
CR16M9S5/CR16MUS5/CR16MUS9/
Family of CompactRISC 16-Bit Microcontrollers
1.0 General Description
The family of CompactRISC™ microcontrollers are gener-
al-purpose 16-bit microcontrollers based on a Reduced In-
struction Set Computer (RISC) architecture. The device
operates as a complete microcomputer with all system tim-
ing, interrupt logic, flash program memory or ROM memo-
ry, RAM, EEPROM data memory, and I/O ports included
on-chip. It is ideally suited to a wide range of embedded
controller applications because of its high performance,
on-chip integrated features and low power consumption,
resulting in decreased system cost.
The family of CompactRISC 16-bit microcontrollers offer
the high performance of a RISC architecture while retain-
ing the advantages of a traditional Complex Instruction Set
Computer (CISC): compact code, on-chip memory and I/O,
and reduced cost. The CPU uses a three-stage instruction
pipeline that allows execution of up to one instruction per
clock cycle, or up to 20 million instructions per second (MI-
PS) at a clock rate of 20 MHz.
Block Diagram
CR16B
Core
Processing
Unit
Core Bus
Fast Osc Slow Osc
Clock Generator
Power-on-Reset
Peripheral
Bus
Controller
48k Flash
Program
Memory
2 kbyte
RAM
640 Bytes
EEPROM
Data
Memory
boot
ROM
Interrupt
Control
(ICU)
Power-Save
Management
WATCHDOG
Peripheral Bus
I/O
µWire/SPI
Two
USARTs
Two
MFTs
A/D
MIWU
Two Analog
Comparators
Real-Time
Timer
Please note that not all family members contain same peripheral modules and features.
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