Flash / Mask ROM 4-bit MCU with Reduced 8051 Architecture

Atom Family Product Information PDF

CORERIVER’s ATOM1.0 family is a group of 4-bit microcontrollers with reduced 8051 architecture. Six clocks per one machine cycle are consumed in the redesigned processor core of the ATOM1.0 Family. The ATOM1.0 family offers maximum 20 I/O ports, a Watchdog timer, and LVD (Low Voltage Detector) as peripherals. The ATOM1.0 family provides power saving modes for the power-critical applications.

Features:
CPU:
- 4-bit Reduced 8051 architecture
- Continuous program addressing, not paged.
- 50 instructions including push, pop logic inst.
- instruction cycle : FSYS/6
- Multi-level subroutine nesting with RAM based stack.
On-chip Memories
- FLASH : 1024 bytes
- RAM : 64 nibbles (including stack)
- ISP (In System Programming of FLASH)
- IAP (In Application Programming)
- REM output (Remote control transmitter)
- Carrier Pulse Generation : 7 types
Built-in Oscillator
- Crystal/Ceramic resonator
- Internal 8Mhz osdillator (+/- 1%)
- Power Consumption
- Stop mode : 1uA (Max.)
- Normal mode : 400uA (Typ.) @ 2.2V, FOSC = 4MHz
- Operating frequency : FOSC = 2.4 ~ 4 MHz
- Operating Voltage : 1.8V ~ 5.5V
Packages
- 20-pin, 24-pin/SOIC
- 8-pin SOIC/DIP