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參數(shù)資料
| 型號(hào)： | AT89C51ID2-SLSUM |
| 廠商： | Atmel |
| 文件頁(yè)數(shù)： | 68/157頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC 8051 MCU FLASH 64K 44PLCC |
| 產(chǎn)品培訓(xùn)模塊： | MCU Product Line Introduction |
| 標(biāo)準(zhǔn)包裝： | 972 |
| 系列： | 89C |
| 核心處理器： | 8051 |
| 芯體尺寸： | 8-位 |
| 速度： | 60MHz |
| 連通性： | I²C，SPI，UART/USART |
| 外圍設(shè)備： | POR，PWM，WDT |
| 輸入/輸出數(shù)： | 34 |
| 程序存儲(chǔ)器容量： | 64KB（64K x 8） |
| 程序存儲(chǔ)器類型： | 閃存 |
| EEPROM 大?。?/td> | 2K x 8 |
| RAM 容量： | 2K x 8 |
| 電壓 - 電源 (Vcc/Vdd)： | 2.7 V ~ 5.5 V |
| 振蕩器型： | 外部 |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 44-LCC（J 形引線） |
| 包裝： | 管件 |
| 配用： | AT89OCD-01-ND - USB EMULATOR FOR AT8XC51 MCU |
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18
AT89C51ID2
4289C–8051–11/05
Idle Modes
IDLE modes are achieved by using any instruction that writes into PCON.0 bit (IDL)
IDLE modes A and B depend on previous software sequence, prior to writing into
PCON.0 bit:
IDLE MODE A: OscA is running (OscAEn = 1) and selected (CKS = 1)
IDLE MODE B: OscB is running (OscBEn = 1) and selected (CKS = 0)
The unused oscillator OscA or OscB can be stopped by software by clearing
OscAEn or OscBEn respectively.
IDLE mode can be canceled either by Reset, or by activation of any enabled
interruption
In both cases, PCON.0 bit (IDL) is cleared by hardware
Exit from IDLE modes will leave Oscillators control bits (OscEnA, OscEnB, CKS)
unchanged.
Power Down Modes
POWER DOWN modes are achieved by using any instruction that writes into
PCON.1 bit (PD)
POWER DOWN modes A and B depend on previous software sequence, prior to
writing into PCON.1 bit:
Both OscA and OscB will be stopped.
POWER DOWN mode can be cancelled either by a hardware Reset, an external
interruption, or the keyboard interrupt.
By Reset signal: The CPU will restart according to OSC bit in Hardware Security Bit
(HSB) register.
By INT0 or INT1 interruption, if enabled: (standard behavioral), request on Pads
must be driven low enough to ensure correct restart of the oscillator which was
selected when entering in Power down.
By keyboard Interrupt if enabled: a hardware clear of the PCON.1 flag ensure the
restart of the oscillator which was selected when entering in Power down.
Table 20. Overview
PCON.1
PCON.0
OscBEn
OscAEn
CKS
Selected Mode
Comment
00
0
1
NORMAL MODE
A, OscB stopped
Default mode after power-up or
Warm Reset
00
1
NORMAL MODE
A, OscB running
Default mode after power-up or
Warm Reset + OscB running
00
1
0
NORMAL MODE
B, OscA stopped
OscB running and selected
00
1
0
NORMAL MODE
B, OscA running
OscB running and selected +
OscA running
XX
0
X
INVALID
OscA & OscB cannot be stopped
at the same time
XX
X
0
1
INVALID
OscA must not be stopped, as
used for CPU and peripherals
XX
0
X
0
INVALID
OscB must not be stopped as
used for CPU and peripherals
0
1
X
1
IDLE MODE A
The CPU is off, OscA supplies the
peripherals, OscB can be disabled
(OscBEn = 0)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT89C51ID2-SMSIM | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Flash Microcontroller |
| AT89C51ID2-UM | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Flash Microcontroller |
| AT89C51RB2 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 16K/ 32K Bytes Flash |
| AT89C51RB2/RC2 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:AT89C51RB2/RC2 [Updated 4/03. 125 Pages] |
| AT89C51RB2_06 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 16K/ 32K Bytes Flash |
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