General Description
The ACE1202 (Arithmetic Controller Engine) family of microcontrollers is a dedicated programmable monolithic inte grated circuit for applications requiring high performance, low power, and small size. It is a fully static part fabricated using CMOS technology.
The ACE1202 product family has an 8-bit microcontroller core, 64 bytes of RAM, 64 bytes of data EEPROM and 2K bytes of code EEPROM. Its on-chip peripherals include a multi-function 16-bit timer, watchdog/idle timer, and programmable undervoltage detection circuitry. The on-chip clock and reset functions reduce the number of required external components. The ACE1202 product family is available in 8- and 14-pin SOIC and DIP packages.

Features
■ Arithmetic Controller Engine
■ 2K bytes on-board code EEPROM
■ 64 bytes data EEPROM
■ 64 bytes RAM
■ Instruction set geared for block encryption
■ Watchdog
■ Multi-input wake-up on all I/O pins
■ 16-bit multifunction timer with difference capture
■ 12-bit idle timer
■ Hardware Bit - Coder (HBC) (ACE1202-2 only)
■ On-chip oscillator
   — No external components
   — 1µs instruction cycle time
■ On-chip Power-on Reset
■ Programmable read and write disable functions
■ Memory mapped I/O
■ Multilevel Low Voltage Detection
■ Brown-out Reset
■ Software selectable I/O option
   — Push-pull outputs with tri-state option
   — Weak pull-up or high impedance
■ Fully static CMOS
   — Low power HALT mode (100nA @ 3.3V)
   — Power saving IDLE mode
■ Single supply operation
   — 1.8-5.5V (P.N. ACE1202L)
   — 2.2-5.5V (P.N. ACE1202, ACE12022)
   — 2.7-5.5V (P.N. ACE1202B, ACE12022B)
■ 40 years data retention
■ 1,000,000 data changes
■ 8 and 14-pin SOIC, 8 and 14-pin DIP packages. (CSP package available upon request)
■ In-circuit programming