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부품번호 | N76E885 기능 |
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기능 | 8051-based Microcontroller | ||
제조업체 | Nuvoton | ||
로고 | |||
전체 30 페이지수
N76E885 Datasheet
Nuvoton 1T 8051-based Microcontroller
N76E885
Datasheet
Dec. 21, 2015
Page 1 of 196
Rev. 1.01
N76E885 Datasheet
22.3 Using Flash Memory as Data Storage................................................................................................ 150
22.4 In-System-Programming (ISP)............................................................................................................ 152
23. POWER MANAGEMENT............................................................................................................................ 157
23.1 Idle Mode ............................................................................................................................................ 158
23.2 Power-Down Mode ............................................................................................................................. 158
24. CLOCK SYSTEM ........................................................................................................................................ 160
24.1 System Clock Sources........................................................................................................................ 160
24.1.1 Internal Oscillators ................................................................................................................... 161
24.1.2 External Crystal/Resonator or Clock Input............................................................................... 161
24.2 System Clock Switching ..................................................................................................................... 161
24.3 System Clock Divider.......................................................................................................................... 164
24.4 System Clock Output .......................................................................................................................... 164
25. POWER MONITORING .............................................................................................................................. 165
25.1 Power-On Reset (POR) ...................................................................................................................... 165
25.2 Brown-Out Detection (BOD) ............................................................................................................... 165
26. RESET......................................................................................................................................................... 170
26.1 Power-On Reset ................................................................................................................................. 170
26.2 Brown-Out Reset ................................................................................................................................ 170
26.3 External Reset .................................................................................................................................... 171
26.4 Watchdog Timer Reset ....................................................................................................................... 172
26.5 Software Reset ................................................................................................................................... 172
26.6 Boot Select.......................................................................................................................................... 173
26.7 Reset State ......................................................................................................................................... 174
27. AUXILIARY FEATURES............................................................................................................................. 175
27.1 Dual DPTRs ........................................................................................................................................ 175
27.2 96-Bit Unique Code ............................................................................................................................ 176
28. ON-CHIP-DEBUGGER (OCD).................................................................................................................... 177
28.1 Functional Description ........................................................................................................................ 177
28.2 Limitation of OCD................................................................................................................................ 177
29. CONFIG BYTES.......................................................................................................................................... 179
30. IN-CIRCUIT-PROGRAMMING (ICP) .......................................................................................................... 182
31. INSTRUCTION SET .................................................................................................................................... 183
32. ELECTRICAL CHARACTERISTICS .......................................................................................................... 187
32.1 Absolute Maximum Ratings ................................................................................................................ 187
32.2 D.C. Electrical Characteristics ............................................................................................................ 187
32.3 A.C. Electrical Characteristics ............................................................................................................ 189
32.4 Analog Electrical Characteristics ........................................................................................................ 190
33. PACKAGE DIMENSIONS........................................................................................................................... 193
34. DOCUMENT REVISION HISTORY ............................................................................................................ 195
Dec. 21, 2015
Page 4 of 196
Rev. 1.01
4페이지 N76E885 Datasheet
Peripherals:
– Up to 25 general purpose I/O pins and one input-only pin. All output pins have individual 2-level
slew rate control. Five pins provide normal/high sink current selected via software.
– Standard interrupt pins ̅̅̅̅̅̅̅ and ̅̅̅̅̅̅̅.
– Two 16-bit Timers/Counters 0 and 1 compatible with standard 8051.
– One 16-bit Timer 2 with three-channel input capture module.
– One 16-bit auto-reload Timer 3, which can be the baud rate clock source of UARTs.
– One programmable Watchdog Timer (WDT) clocked by dedicated 10 kHz internal source.
– One dedicated Self Wake-up Timer (WKT) for self-timed wake-up for power reduced modes.
– Two full-duplex UART ports with frame error detection and automatic address recognition. Up
to 781.25 kbps when system clock is 25 MHz. TXD and RXD pins of UART0 exchangeable via
software.
– One SPI port with master and slave modes, up to 6.25 Mbps when system clock is 25 MHz.
– One I2C bus with master and slave modes, up to 400 kbps data rate.
– Four pairs, eight channels of pulse width modulator (PWM) output, up to 12-bit resolution, with
different modes and Fault Brake function for motor control.
– Eight channels of pin interrupt, shared for all I/O ports, with variable configuration of edge/level
detection.
– One 10-bit ADC with external VREF input available, up to 300 ksps converting rate, hardware
triggered and conversion result compare facilitating motor control.
Power management:
– Two power reduced modes: Idle and Power-down mode.
Power monitor:
– Brown-out detection (BOD) with low power mode available, 8-level selection, interrupt or reset
options.
– Power-on reset (POR).
Strong ESD and EFT immunity.
Development Tools:
–
TM
Nuvoton On-Chip-Debugger (OCD) with KEIL development environment.
– Nuvoton In-Circuit-Programmer (ICP).
– Nuvoton In-System-Programming (ISP) via UART.
Dec. 21, 2015
Page 7 of 196
Rev. 1.01
7페이지 | |||
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N76E885 | 8051-based Microcontroller | Nuvoton |
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