參數(shù)資料
型號(hào)： AT89C51SND2C-7FTUL
廠商： Atmel
文件頁數(shù)： 157/160頁
文件大?。?/td> 0K
描述： IC 8051 MCU FLASH 64K MP3 100BGA
標(biāo)準(zhǔn)包裝： 260
系列： 89C
核心處理器： 8051
芯體尺寸： 8-位
速度： 40MHz
連通性： I²C，IDE/ATAPI，MMC，SPI，UART/USART，USB
外圍設(shè)備： 音頻，I²S，MP3，PCM，POR，WDT
輸入/輸出數(shù)： 32
程序存儲(chǔ)器容量： 64KB（64K x 8）
程序存儲(chǔ)器類型： 閃存
RAM 容量： 2.25K x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 3.3 V
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 100-TFBGA
包裝： 托盤
其它名稱： AT89C51SND2C7FTUL
6
4341H–MP3–10/07
AT8xC51SND2C/MP3B
4.3
Signals
All the AT8xC51SND2C and AT8XSND2CMP3B signals are detailed by functionality in Table 4-
1 to Table 14.
Table 4-1.
Ports Signal Description
Table 4-2.
Clock Signal Description
Table 4-3.
Timer 0 and Timer 1 Signal Description
Signal
Name
Type
Description
Alternate
Function
P0.7:0
I/O
Port 0
P0 is an 8-bit open-drain bidirectional I/O port. Port 0 pins that have 1s written
to them float and can be used as high impedance inputs. To avoid any parasitic
current consumption, floating P0 inputs must be polarized to V
DD or VSS.
AD7:0
P2.7:0
I/O
Port 2
P2 is an 8-bit bidirectional I/O port with internal pull-ups.
A15:8
P3.7:0
I/O
Port 3
P3 is an 8-bit bidirectional I/O port with internal pull-ups.
RXD
TXD
INT0
INT1
T0
T1
WR
RD
P4.3:0
I/O
Port 4
P4 is an 8-bit bidirectional I/O port with internal pull-ups.
MISO
MOSI
SCK
SS
Signal
Name
Type
Description
Alternate
Function
X1
I
Input to the on-chip inverting oscillator amplifier
To use the internal oscillator, a crystal/resonator circuit is connected to this pin.
If an external oscillator is used, its output is connected to this pin. X1 is the
clock source for internal timing.
-
X2
O
Output of the on-chip inverting oscillator amplifier
To use the internal oscillator, a crystal/resonator circuit is connected to this pin.
If an external oscillator is used, leave X2 unconnected.
-
FILT
I
PLL Low Pass Filter input
FILT receives the RC network of the PLL low pass filter.
-
Signal
Name
Type
Description
Alternate
Function
INT0
I
Timer 0 Gate Input
INT0 serves as external run control for timer 0, when selected by GATE0 bit in
TCON register.
External Interrupt 0
INT0 input sets IE0 in the TCON register. If bit IT0 in this register is set, bit IE0
is set by a falling edge on INT0#. If bit IT0 is cleared, bit IE0 is set by a low
level on INT0#.
P3.2
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參數(shù)描述
AT89C51-W 功能描述:8位微控制器 -MCU Microcontroller RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時(shí)鐘頻率:50 MHz 程序存儲(chǔ)器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT
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