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| | Category: Main/ II. Electronics components & Development Tools/II.2.a. Nuvoton 8-bit microcontrollers with 8051-core
| | | | ◊ Đặc điểm chính: | | MG87FE/L2051/4051/6051 is single-chip 8-bits microcontroller with the instruction sets fully compatible with industrial-standard 80C51 series microcontroller. 2K/4K/6K bytes flash memory and 256 bytes RAM has been embedded to provide widely field application. In-System-Programming and In-Application-Programming allows the users to download new code or data while the microcontroller sits in the application. This device executes one machine cycle in 6 clock cycles or 12 clock cycles. MG87FE/L2051/4051/6051 has one 8-bit I/O ports (P1), one 7-bit I/O port (P30~P35,P37), two 16-bit timer/counters, one PWM-timer for 8-channel PWM output, a seven -source, four-priority-level interrupt structure, an enhanced UART, a precision analog comparator, on-chip crystal oscillator(combined P42,P43) and a high-precision internal oscillator.
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Features
· 80C51 Central Processing Unit
· MG87FE/L2051 with 2KB flash ROM, 4051/4KB flash ROM; 6051/6KB flash ROM
· Operating voltage: E type: 4.5V~5.5V and L type: 2.4V~3.6V
· Operation frequency : 48MHz(max)@12T and 24MHz@6T mode
- External crystal mode
- Internal RC-oscillator with +/- 4% frequency drift @ -40 ~ 85℃, there are 6 kinds of frequencies selectable:
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Internal oscillator frequency
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1
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6MHz
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2
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11.059MHz
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3
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12MHz
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4
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22.118MHz
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5
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24MHz
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6
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24.576MHz
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· ISP memory zone could be optioned as 0.5K/1KB/1.5KB~3.5KB
· IAP capability; 1KB IAP memory size
· On-chip 256 bytes data RAM for MG87FE/L2051/4051/6051
· 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
· Seven 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 INT0(P3.2), INT1(P3.3), INT2(P4.3), INT3(P4.2) and other I/O.
· I/O port list, P1[7:0], P3[7,5:0], P4.2/INT3 on XTAL2, P4.3/INT2 on XTAL1
· Built-in analog comparator with selectable interrupt on INT2. AIN0(V+) on P1.0 and AIN1(V-) on P1.1, output on P3.6
· Package type: PDIP-20, SOP-20
Items
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Package Type
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Description
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MG87Fxy051AE20
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PDIP-20
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x = E:5.0V , L:3.3V y = 2, 4, 6 . 2051/4051/6051
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MG87Fxy051AS20
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SOP-20
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