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发布日期:5天前	产品数量:咨询确认
销售热线:159-8666-3416	回收热线:159-8666-3409

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Type	Microcontroller
Manufacturing process	CHMOSIII technology
Data bus width	8 bit
Package	44-pin plastic LCC
Speed (MHz)	0.5 - 12
On-chip RAM (bytes)	128
On-chip ROM	4 KB masked ROM
On-chip peripherals	Four 8-bit I/O ports (32 I/O lines) Full-duplex serial port Two 16-bit timers/counters Oscillator and clock circuits
Low power features	Idle mode Power down mode
Other features	On-circuit emulator (ONCE) mode
Physical memory	68 KB (4 KB code and 64 KB data)
V core (V)	5 ± 20%
Min/Max operating temperature (°C)	0 - 70
Min/Typical/Max power dissipation (W)	0.025 (Idle mode) / 0.055 / 0.12
Notes: Earlier versions included ROM protection features: program verification is disabled, external memory accesses are limited to 4 KB Later versions are 80C51BH microcontrollers with memory lock bit 1 set.