Key facts
- Model
- CR16HCS9
- Industry
- Industrial
- Documents
- 3
- Languages
- EN
- Last added
- 2012-06-05
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National Semiconductor CR16HCS5/CR16HCS9/CR16MAR5/CR16MAS5 Handbook
This handbook provides a comprehensive description of the CR16 family of 16‑bit CAN‑enabled CompactRISC microcontrollers. It covers the CPU core, memory organization, I/O ports, bus interface, interrupt system, power‑management modes, and on‑chip peripherals such as timers, USARTs, A/D converter, CAN interface, and ACCESS.bus.
The document also details register layouts, programming procedures, and electrical characteristics, helping developers design and debug embedded applications that use the CR16HCS5, CR16HCS9, CR16MAR5, and CR16MAS5 devices.
National Semiconductor CR16HCS9 specifications
| Flash program memory | up to 64 KB |
|---|---|
| Flash EEPROM (ISP) memory | 1.5 KB |
| Static RAM | 3 KB |
| Non‑volatile EEPROM data memory (low endurance) | 2 KB |
| High‑endurance EEPROM data memory | 128 bytes |
| General‑purpose I/O pins | up to 56 |
| USART modules | 2 |
| A/D converter channels | 12‑channel 8‑bit |
| CAN message buffers | 15 |
| Maximum clock speed | 24 MHz |
| Supply voltage | 4.5 V to 5.5 V |
| Operating temperature range | -40 °C to +85 °C |
Source: National Semiconductor CR16HCS5/CR16HCS9/CR16MAR5/CR16MAS5 Handbook
All National Semiconductor CR16HCS9 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What is the maximum flash program memory size?
The device provides up to 64 KB of reprogrammable flash EEPROM program memory.
From: National Semiconductor CR16HCS5/CR16HCS9/CR16MAR5/CR16MAS5 Handbook
How many general‑purpose I/O pins are available?
The microcontroller offers up to 56 software‑controllable I/O pins.
From: National Semiconductor CR16HCS5/CR16HCS9/CR16MAR5/CR16MAS5 Handbook
How many general‑purpose I/O pins are available?
The device offers up to 56 configurable I/O pins.
What clock frequencies can the core run at?
The core can run from 0 Hz up to 24 MHz, with a minimum of 4 MHz in active mode.