参数资料
型号: ADSP-2191MBSTZ-140
厂商: Analog Devices Inc
文件页数: 9/48页
文件大小: 0K
描述: IC DSP CONTROLLER 16BIT 144LQFP
标准包装: 1
系列: ADSP-21xx
类型: 定点
接口: 主机接口,SPI,SSP,UART
时钟速率: 140MHz
非易失内存: 外部
芯片上RAM: 160kB
电压 - 输入/输出: 3.00V,3.30V
电压 - 核心: 2.50V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 144-LQFP
供应商设备封装: 144-LQFP(20x20)
包装: 托盘
其它名称: ADSP-2191MBSTZ140
–17–
REV. A
ADSP-2191M
TMR2–0
I/O/T
Timer Output or Capture
RXD
I
UART Serial Receive Data
TXD
O
UART Serial Transmit Data
RESET
I
Processor Reset. Resets the ADSP-2191M to a known state and begins execution at the
program memory location specified by the hardware reset vector address. The
RESET input
must be asserted (low) at powerup. The
RESET pin has an 85 k
internal pull-up resistor.
TCK
I
Test Clock (JTAG). Provides a clock for JTAG boundary scan. The TCK pin has an 85 k
internal pull-up resistor.
TMS
I
Test Mode Select (JTAG). Used to control the test state machine. The TMS pin has an 85 k
internal pull-up resistor.
TDI
I
Test Data Input (JTAG). Provides serial data for the boundary scan logic. The TDI pin has a
85 k
internal pull-up resistor.
TDO
O
Test Data Output (JTAG). Serial scan output of the boundary scan path.
TRST
I
Test Reset (JTAG). Resets the test state machine.
TRST must be asserted (pulsed low) after
powerup or held low for proper operation of the ADSP-2191M. The
TRST pin has a 65 k
internal pull-down resistor.
EMU
O
Emulation Status (JTAG). Must be connected to the ADSP-2191M emulator target board
connector only.
V
DDINT
P
Core Power Supply. Nominally 2.5 V dc and supplies the DSP’s core processor. (four pins)
V
DDEXT
P
I/O Power Supply. Nominally 3.3 V dc. (nine pins)
GND
G
Power Supply Return. (twelve pins)
NC
Do Not Connect. Reserved pins that must be left open and unconnected.
Table 7. Pin Function Descriptions (continued)
Pin
Type
Function
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