The AM8EB151A is a family of low-cost, high speed, high noise immunity and EPROM-embedded 8-bit CMOS micro-controllers. It employs a RISC architecture with only 55 instructions. All instructions are single cycle except for program branches that take two cycles. The AM8EB151A provides powerful and easy useful instruction sets that can directly or indirectly address its register files and data memory.

z Wide operating voltage range:
- Four oscillator periods: 2.0 ~ 5.5V at 32kHz, 2.2 ~ 5.5V at DC-8MHz, 2.6 ~ 5.5V at DC-20MHz.
- Two oscillator periods: 2.0 ~ 5.5V at 32kHz, 2.2 ~ 5.5V at DC-8MHz, 10MHz-16MHZ, 20MHZ not used.
z Wide operating frequency range: 32kHz ~ 20MHz.
z Wide operating temperature range: 0ºC ~ 70ºC.
z ROM: 1K x 14 bits.
z RAM: 48 x 8 bits.
z Selectable oscillator options:
- IRC: Internal Resistor and Capacitor Oscillator.
- EXT-R: External Resistor and internal Capacitor Oscillator.
- ERC: External Resistor and Capacitor Oscillator.
- LF-XTAL: Low Frequency Crystal Oscillator.
- XTAL: Crystal / Resonator Oscillator.
- HF-XTAL: High Frequency Crystal / Resonator Oscillator.
z 6-level deep hardware stack.
z Total 55 single word instructions.
z All instructions are single cycle except for program branches which are two-cycle.
z Direct, indirect addressing modes for data accessing.
z All ROM area LGOTO instruction, all ROM area subroutine LCALL instruction.
z 8-bit real time clock / counter (Timer0) with 8-bit programmable prescaler.
z On chip Watchdog Timer (WDT) with internal oscillator for reliable operation and software Watchdog enable / disable control.
z Internal Power-on Reset (POR).
z Built-in Low Voltage Reset (LVR).
z Power-up Reset Timer (PWRT) and Oscillator Start-up Timer (OST).
z SLEEP mode function to reduce power consumption.
AM8EB151A
5 Rev 1.10 2009/4/10
z I/O ports PB with independent direction control.
z Software I/O pull-high / pull-down or open-drain control.
z One IR carrier output (38k / 57kHz).
z Four Interrupt source:
- Timer0 overflow.
- PB input change.
- External Interrupt Pin.
- Watchdog time out Interrupt (If this function is enabled by programming the configuration word.).
z Wake-up from SLEEP by external INT pin, Port B input change, WDT reset or WDT interrupt.
z Programmable Code Protection.

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