COP888CG

Key Features
 Full duplex UART
 Three 16-bit timers, each with two 16-bit registers supporting:
      Processor independent PWM mode
      External event counter mode
      Input capture mode
 Quiet design (low radiated emissions)
 4 kbytes of on-chip ROM
 192 bytes of on-chip RAM

Additional Peripheral Features
 Idle timer
 Multi-Input Wake Up (MIWU) with optional interrupts (8)
 Two analog comparators
 WATCHDOGTM and Clock Monitor logic
 MICROWIRE/PLUSTM serial I/O

I/O Features
 Memory mapped I/O
 Software selectable I/O options (TRI-STATEÉ ^®output, push-pull output, weak pull-up input, high impedance input)
 High current outputs
 Schmitt trigger inputs on Port G
 Packages:
      44 PLCC with 40 I/O pins
      40 DIP with 36 I/O pins
      28 DIP with 24 I/O pins
      28 SO with 24 I/O pins

CPU/Instruction Set Feature
 1 ms instruction cycle time
 Fourteen multi-source vectored interrupts servicing
      External interrupt with selectable edge
      Idle timer T0
      Three timers (each with 2 interrupts)
      MICROWIRE/PLUS
      Multi-Input WAke Up
      Software trap
      UART (2)
      Default VIS (default interrupt)
 Versatile and easy to use instruction set
 8-bit Stack Pointer (SP)Ðstack in RAM
 Two 8-bit register indirect data memory pointers (B, X)

Fully Static CMOS
 Low current drain (typically k 1 mA)
 Single supply operation: 2.5V to 6.0V
 Temperature range: b40 to a85

Development Support
 Emulation and OTP devices
 Real time emulation and full program debug offered by MetaLink Development System

Supply Voltage (V_CC) ....................................................7V
Voltage at Any Pin................................. -3V to V_CC a 0.3V
Total Current into V_CC Pin (Source) .......................100 mA
Total Current out of GND Pin (Sink) ........................110 mA
Storage Temperature Range .....................-65 to a140

The COP888 family of microcontrollers uses an 8-bit single chip core architecture fabricated with National Semiconductor's M²CMOS^TM process technology. The COP888CG is a member of this expandable 8-bit core processor family of microcontrollers

COP888CG are fully static parts, fabricated using double-metal silicon gate microCMOS technology. COP888CG Features include an 8-bit memory mapped architecture, MICROWIRE/PLUS serial I/O, three 16-bit timer/counters supporting three modes (Processor Independent PWM generation, External Event counter, and Input Capture mode capabilities), full duplex UART, two comparators, and two power savings modes (HALT and IDLE), both with a multi-sourced wakeup/interrupt capability. This multi-sourced interrupt capability may also be used independent of the HALT or IDLE modes. Each I/O pin has software selectable configurations. The device operates over a voltage range of 2.5V to 6V. High throughput is achieved with an efficient, regular instruction set operating at a maximum of 1 ms per instruction rate.

COP888CG has reduced EMI emissions. Low radiated emissions are achieved by gradual turn-on output drivers and internal I_CC filters on the chip logic and crystal oscillator.