8 bit microcontroller with 5 KB RAM

DSP, Micros & Memory

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

Share this article:

New family supports future cryptography
Altron Arrow DSP, Micros & Memory
NXP has introduced its new i.MX 94 family, which contains an i.MX MPU with an integrated time-sensitive networking (TSN) switch, enabling configurable, secure communications with rich protocol support in industrial and automotive environments.

Read more...

Fast and reliable 4G connectivity worldwide
TRX Electronics DSP, Micros & Memory
Powered by a powerful Quectel LTE Cat 4 modem, the Arduino Pro 4G module’s fast data throughput and high bandwidths ensure reliable and quick data download and upload, even in remote locations.

Read more...

NXP’s all-purpose microcontroller series
Altron Arrow DSP, Micros & Memory
NXP has released its MCX A14x and A15x series of all-purpose microcontrollers which are part of the larger MCX portfolio that shares a common Arm Cortex-M33 core platform.

Read more...

ESP32-P4 SoC
iCorp Technologies DSP, Micros & Memory
Espressif Systems announced its latest SoC, the ESP32-P4 which is powered by a RISC-V CPU, with an AI instructions extension, an advanced memory subsystem, and integrated high-speed peripherals.

Read more...

Microchip SoC FPGA
ASIC Design Services DSP, Micros & Memory
Microchip Technology introduced the RT PolarFire SoC FPGA, the first real-time Linux capable, RISC-V-based microprocessor subsystem on a proven RT PolarFire FPGA platform.

Read more...

QLC Flash memory using BiCS tech
EBV Electrolink DSP, Micros & Memory
KIOXIA announced it had started shipping its 2 Tb Quad-Level-Cell memory devices with its 8th-generation BiCS FLASH 3D flash memory technology.

Read more...

Low noise 3-axis MEMS accelerometers
Altron Arrow DSP, Micros & Memory
The ADXL357 and ADXL357B from Analog Devices are digital outputs, low noise density, low 0 g offset drift, low power, three-axis accelerometers with selectable measurement ranges.

Read more...

ST’s biosensing tech enables next-gen wearables
Future Electronics DSP, Micros & Memory
The highly integrated biosensor device combines an input channel for cardio and neurological sensing, with motion tracking and embedded AI core, for healthcare and fitness applications.

Read more...

Categories

DSP, Micros & Memory

8 bit microcontroller with 5 KB RAM

Further reading:

Publications by Technews