IN80C51BH 8-Bit Microcontroller-Microcomputer - 111 instruction set with 64 single cycle
From Advanced Micro Devices
| Clock Frequency - Max. (Hz) | 12M |
| Clock Frequency - Min. (Hz) | 3.5M |
| Max Instruction Length (bits) | 24 |
| Memory Addressing Range | 64k |
| Military | N |
| Min Instruction Length (bits) | 8 |
| No. of I/O Ports | 4 |
| No. of Non-Maskable Interrupts | 0 |
| Number of Addressing Modes | 7 |
| Number of I/O Lines | 32 |
| Number of Interrupt Lines | 2 |
| Number of Maskable Interrupts | 2 |
| On-Chip RAM (Bytes) | 128 |
| On-Chip ROM (bytes) | 4k |
| Package | QCC-J |
| Pins | 44 |
| Technology | CMOS |
| Vsup Nom.(V) Supply Voltage | 5.0 |
