DS80C320/DS80C323
High-Speed/Low-Power Micro
www.maxim-ic.com
FEATURES
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80C32-Compatible
- 8051 pin and instruction set compatible
- Four 8-bit I/O ports
- Three 16-bit timer/counters
- 256 bytes scratchpad RAM
- Addresses 64 kB ROM and 64 kB RAM
High-speed architecture
- 4 clocks/machine cycle (8032=12)
- DC to 33 MHz (DS80C320)
- DC to 18 MHz (DS80C323)
- Single-cycle instruction in 121 ns
- Uses less power for equivalent work
- Dual data pointer
- Optional variable length MOVX to access
fast/slow RAM/peripherals
High integration controller includes:
- Power- fail reset
- Programmable watchdog timer
- Early- warning power- fail interrupt
Two full-duplex hardware serial ports
13 total interrupt sources with six external
Available in 40-pin DIP, 44-pin PLCC and
TQFP
PIN ASSIGNMENT
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Note:
Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple
revisions of any device may be simultaneously available through various sales channels. For information about device errata,
click here:
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