参数资料
型号: AT89C51SND2C-7FTUL
厂商: Atmel
文件页数: 158/160页
文件大小: 0K
描述: IC 8051 MCU FLASH 64K MP3 100BGA
标准包装: 260
系列: 89C
核心处理器: 8051
芯体尺寸: 8-位
速度: 40MHz
连通性: I²C,IDE/ATAPI,MMC,SPI,UART/USART,USB
外围设备: 音频,I²S,MP3,PCM,POR,WDT
输入/输出数: 32
程序存储器容量: 64KB(64K x 8)
程序存储器类型: 闪存
RAM 容量: 2.25K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 3.3 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 100-TFBGA
包装: 托盘
其它名称: AT89C51SND2C7FTUL
7
4341H–MP3–10/07
AT8xC51SND2C/MP3B
Table 4-4.
Audio Interface Signal Description
Table 4-5.
USB Controller Signal Description
Table 4-6.
MutiMediaCard Interface Signal Description
INT1
I
Timer 1 Gate Input
INT1 serves as external run control for timer 1, when selected by GATE1 bit in
TCON register.
External Interrupt 1
INT1 input sets IE1 in the TCON register. If bit IT1 in this register is set, bit IE1
is set by a falling edge on INT1#. If bit IT1 is cleared, bit IE1 is set by a low
level on INT1#.
P3.3
T0
I
Timer 0 External Clock Input
When timer 0 operates as a counter, a falling edge on the T0 pin increments
the count.
P3.4
T1
I
Timer 1 External Clock Input
When timer 1 operates as a counter, a falling edge on the T1 pin increments
the count.
P3.5
Signal
Name
Type
Description
Alternate
Function
DCLK
O
DAC Data Bit Clock
-
DOUT
O
DAC Audio Data Output
-
DSEL
O
DAC Channel Select Signal
DSEL is the sample rate clock output.
-
SCLK
O
DAC System Clock
SCLK is the oversampling clock synchronized to the digital audio data (DOUT)
and the channel selection signal (DSEL).
-
Signal
Name
Type
Description
Alternate
Function
D+
I/O
USB Positive Data Upstream Port
This pin requires an external 1.5 K pull-up to V
DD for full speed operation.
-
D-
I/O
USB Negative Data Upstream Port
-
Signal
Name
Type
Description
Alternate
Function
MCLK
O
MMC Clock output
Data or command clock transfer.
-
MCMD
I/O
MMC Command line
Bidirectional command channel used for card initialization and data transfer
commands. To avoid any parasitic current consumption, unused MCMD input
must be polarized to V
DD or VSS.
-
MDAT
I/O
MMC Data line
Bidirectional data channel. To avoid any parasitic current consumption, unused
MDAT input must be polarized to V
DD or VSS.
-
Signal
Name
Type
Description
Alternate
Function
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