8 bit microcontroller with 5 KB RAM
28 March 2001
DSP, Micros & Memory
Every so often, one encounters a project that needs far more RAM than the 128, 256, or even 1024 bytes RAM in a conventional 8 bit microcontroller. For these special cases, NEC has now developed an advanced 80-pin standard microcontroller - the µPD78F0066. In the Flash variant, this microcontroller provides 5 KB RAM and 48 KB ROM. The version with Mask ROM (µPD780065) has the same RAM capacity but 40 KB ROM. Using special registers, it is possible to match the memory configuration of the Flash variant exactly to that of the Mask ROM version. This feature allows smooth switching from Flash to Mask ROM products after the ramp-up phase.
Based on the Von-Neumann architecture of the 78K0 family, the controller is capable, for example, of loading and then executing program code in RAM.
The µPD78F0066 (in an 80-pin LQFP package) comes with a number of integrated peripherals, including 60 I/O pins, 8-channel A/D converter with 8 bit resolution, one 16 bit and two 8 bit timers, watchdog, four serial interface channels (including 1 UART) and two PWM outputs. At an operating voltage of 2,7 to 5,5 V and a maximum clock frequency of 8,38 MHz the instruction execution time is adjustable in the range from 0,24 to 3,81 µs.
Since minimum power consumption is especially important in battery-operated applications, this device can be switched at any time to a power-saving subclock mode.
Impact Memec
(011) 897 8600
Further reading:
MCU for noisy environments
EBV Electrolink
DSP, Micros & Memory
The MCX?E24X is a high-performance microcontroller family from NXP, engineered for industrial, automotive-like, and energy-focused environments.
Read more...
SmartRAID 4300 Series
Altron Arrow
DSP, Micros & Memory
Microchip’s disaggregated architecture leverages host CPU and PCIe infrastructure to overcome traditional storage bottlenecks in scalable, secure NVMe RAID storage solutions.
Read more...
High-performance SDR range
RFiber Solutions
DSP, Micros & Memory
Epiq Solutions offers high-performance RF tuners and software-defined radios with various specifications for diverse applications in congested environments.
Read more...
High performance SDR design considerations
RFiber Solutions
Editor's Choice DSP, Micros & Memory
As the spectrum gets increasingly crowded, and adversaries more capable, the task of examining wide bands and making sense of it all, while not missing anything, gets harder.
Read more...
Direct RF converters and FPGAs boost EW applications
RFiber Solutions
DSP, Micros & Memory
The latest boost to electronic warfare designs comes from emerging FPGA architectures that combine advanced RF converters and high-performance processing engines in a single package.
Read more...
1-Wire EEPROM with secure authenticator
Altron Arrow
DSP, Micros & Memory
The DS28E54 secure authenticator combines FIPS 202-compliant secure hash algorithm (SHA-3) challenge and response authentication with secured electrically erasable programmable read-only memory.
Read more...
Microchip enhances digital signal controller lineup
Future Electronics
DSP, Micros & Memory
Microchip Technology has added the dsPIC33AK512MPS512 and dsPIC33AK512MC510 Digital Signal Controller families to its dsPIC33A DSC product line.
Read more...
MCX C Series development board
Avnet Silica
DSP, Micros & Memory
The FRDM-MCXC444 is a compact and scalable development board for rapid prototyping of MCX C444 MCU from NXP Semiconductors.
Read more...
Redefining entry-level MCUs
NuVision Electronics
DSP, Micros & Memory
The company positions the GD32C231 series as a ‘high-performance entry-level’ solution designed to offer more competitive options for multiple applications.
Read more...
Microchip enhances TrustMANAGER platform
Altron Arrow
DSP, Micros & Memory
Firmware over-the-air updates and remote cryptographic key management provide scalable solutions for addressing IoT security challenges.
Read more...
printer friendly version