TN80C31BH microcontroller equivalent, chmos single-chip 8-bit microcontroller.
4 Kbytes of EPROM ROM (87C51 80C51BH respectively) 128 bytes of RAM 32 I O lines two 16-bit timer counters a five-source two-level interrupt structure a full duplex seria.
whose operating requirements exceed commercial standards With the extended temperature range option operational characte.
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