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CR16MBR5VJI8 Datasheet(PDF) 3 Page - National Semiconductor (TI) |
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CR16MBR5VJI8 Datasheet(HTML) 3 Page - National Semiconductor (TI) |
3 / 156 page 3 www.national.com 1.0 General Description (Continued) The device has up to 64K bytes of reprogrammable flash EE- PROM program memory or ROM memory, 1.5K bytes of flash EEPROM In-System-Programming memory, 3K bytes of static RAM, 2K bytes of non-volatile EEPROM data mem- ory and 128 bytes with high endurance, two USARTs, two 16- bit multi-function timers, one SPI/MICROWIRE-PLUS™ seri- al interface, a 12-channel A/D converter, two analog compar- ators, WATCHDOG™ protection mechanism, and up to 56 general-purpose I/O pins. The device operates with a high-frequency crystal as the main clock source and either the prescaled main clock source or with a low frequency (32.768 kHz) oscillator in Power Save mode. The device supports several Power Save modes which are combined with multi-source interrupt and wake-up capabilities. This device also has a Versatile Timer Unit (VTU) with four timer sub-systems, a CAN interface, and ACCESS.bus syn- chronous serial bus interface. Powerful cross-development tools are available from Nation- al Semiconductor and third party suppliers to support the de- velopment and debugging of application software for the device. These tools let you program the application software in C and are designed to take full advantage of the Compac- tRISC architecture. In the following text, device is always referred to the family of 16-bit CAN-enabled CompactRISC Microtroller. 2.0 Features • CPU Features — Fully static core, capable of operating at any rate from 0 to 24 MHz (4 MHz minimum in active mode) — 50 ns instruction cycle time with a 20 MHz external clock frequency — Multi-source vectored interrupts (internal, external, and on-chip peripheral) — Dual clock and reset • On-chip power-on reset • On-Chip Memory — Up to 64K bytes flash EEPROM program memory; can be programmed, erased, and reprogrammed by soft- ware (100K cycles) — 3K bytes of static RAM data memory — For flash program memory devices, 1.5k bytes flash EEPROM memory is available to store boot loader code (100K cycles) — 2K bytes of non-volatile EEPROM data memory with low endurance (25K cycles) and 128 bytes with high endurance (100K cycles) • On-Chip Peripherals — Two Universal Synchronous/Asynchronous Receiver/ Transmitter (USART) devices — Programmable Idle Timer and real-time clock (T0) — Two dual 16-bit multi-function timers (MFT1 and MFT2) — 8/16-bit SPI/MICROWIRE-PLUS serial interface — 12-channel, 8-bit Analog-to-Digital (A/D) converter with external voltage reference, programmable sam- ple-and-hold delay, and programmable conversion fre- quency — ACCESS.bus synchronous serial bus — FullCAN interface with 15 message buffers complaint to CAN specification 2.0B active — Versatile Timer Unit with four subsystems (VTU) — Two analog comparators — Integrated WATCHDOG logic • I/O Features — Up to 56 general-purpose I/O pins (shared with on-chip peripheral I/O pins) — Programmable I/O pin characteristics: TRI-STATE out- put, push-pull output, weak pull-up input, high-imped- ance input — Schmitt triggers on general purpose inputs • Power Supply — 4.5V to 5.5V single-supply operation • Temperature Range — –40 °C to +85°C — –40 °C to +125°C • Development Support — Real-time emulation and full program debug capabili- ties available — CompactRISC tools provide C programming and de- bugging support |
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