General Description
The ACE1101 (Arithmetic Controller Engine) is a dedicated programmable monolithic integrated circuit for applications requiring high performance, low power, and small size. It is a fully static part fabricated using CMOS technology.
The ACE1101 has an 8-bit microcontroller core, 64 bytes of RAM, 64 bytes of data EEPROM and 1K bytes of code EEPROM. Its on chip peripherals include a multi-function 16-bit timer, watchdog/idle timer, and programmable undervoltage detection circuitry. On-chip clock and reset functions reduce the number of required external components. The ACE1101 is available in an 8-pin TSSOP package.

Features
■ Arithmetic Controller Engine
■ 1K bytes on-board code EEPROM
■ 64 bytes data EEPROM
■ 64 bytes RAM
■ Watchdog
■ Multi-input wake-up all I/O pins
■ 16-bit multifunction timer
■ On-chip oscillator
   — No external components
   — 1µs instruction cycle time
■ Instruction set geared for block encryption
■ On-chip power on reset
■ Programmable read and write disable functions
■ Memory mapped I/O
■ Multilevel Low Voltage Detection
■ Fully static CMOS
   — Low power HALT mode (100nA @3.3V)
   — Power saving IDLE mode
   — Single supply operation (2.0-5.5V, 2.2-5.5V, 2.7-5.5V))
■ Software selectable I/O options
   — Push-pull outputs with tri-state option
   — Weak pull-up or high impedance inputs
■ 40 years data retention
■ 1,000,000 data changes
■ 8-pin TSSOP package
■ In-circuit programming