| 12T/6T 8051 MCU |
 |
| 87 SERIES |
| MG87FE(L)2051 |
80C51 Central Processing Unit MG87FE(L)2051 with 2KB flash ROM Operating voltage: E type: 4.5V~5.5V and L type: 2.4V~3.6V Operating Voltage:
Internal RC-oscillator with +/- 1% frequency drift @ 25℃, there are 6 kinds of frequencies selectable: By U1 writer setting only.
| Internal oscillator frequency | |
| 1 | 6MHz |
| 2 | 11.059MHz |
| 3 | 12Mhz |
| 4 | 22.118MHz |
| 5 | 24Mhz |
| 6 | 24.576Mhz |
+/- 1% frequency drift @ 25℃+/- 2% frequency drift @ -20 ~ 50℃+/- 4% frequency drift @ -40 ~ 85℃ Built-in Megawin standard ISP IAP capability; 1KB IAP memory size On-chip 256 bytes data RAM Code protection for flash memory access Two 16-bit timer/counter PWM-Timer for PWM generator or normal 8-bit timer, selectable interrupt on INT3 Five sources, four-level-priority interrupt capability. Enhanced UART, provides frame-error detection and hardware address-recognition 15 bits Watch-Dog-Timer with 8-bit pre-scalar, one-time enabled by CPU or power-on Power control: idle mode and power-down mode, Power-down can be woken-up by, INT3(P4.2)/P1.2*, and other I/O. I/O port list, P3.0, P3.1, P1.2,P1.5 & P1.6 Data Sheet 
Package Dimension Writer8_U1Plus Megawin 8051 ISP/ICP Programmer Megawin 8051 COM Port ISP EV Board ISP via COM