参数资料
型号: ADSP-2181BSTZ-133
厂商: Analog Devices Inc
文件页数: 7/32页
文件大小: 0K
描述: IC DSP CONTROLLER 16BIT 128TQFP
产品变化通告: Mold Change 11/Jul/2012
标准包装: 1
系列: ADSP-21xx
类型: 定点
接口: 同步串行端口(SSP)
时钟速率: 33.3MHz
非易失内存: 外部
芯片上RAM: 80kB
电压 - 输入/输出: 5.00V
电压 - 核心: 5.00V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 128-LQFP
供应商设备封装: 128-TQFP(14x20)
包装: 托盘
ADSP-2181
–15–
REV. D
Parameter
Min
Max
Unit
Interrupts and Flag
Timing Requirements:
tIFS
IRQx, FI, or PFx Setup before CLKOUT Low1, 2, 3, 4
0.25tCK + 15
ns
tIFH
IRQx, FI, or PFx Hold after CLKOUT High1, 2, 3, 4
0.25tCK
ns
Switching Characteristics:
tFOH
Flag Output Hold after CLKOUT Low
5
0.5tCK – 7
ns
tFOD
Flag Output Delay from CLKOUT Low
5
0.5tCK + 5
ns
NOTES
1If
IRQx and FI inputs meet t
IFS and tIFH setup/hold requirements, they will be recognized during the current clock cycle; otherwise the signals will be recognized on
the following cycle. (Refer to “Interrupt Controller Operation” in the Program Control chapter of the User’s Manual for further information on interrupt servicing.)
2Edge-sensitive interrupts require pulsewidths greater than 10 ns; level-sensitive interrupts must be held low until serviced.
3
IRQx = IRQ0, IRQ1, IRQ2, IRQL0, IRQL1, IRQE.
4PFx = PF0, PF1, PF2, PF3, PF4, PF5, PF6, PF7.
5Flag outputs = PFx, FL0, FL1, FL2, Flag_out4.
tFOD
tFOH
tIFH
tIFS
CLKOUT
FLAG
OUTPUTS
IRQx
FI
PFx
Figure 9. Interrupts and Flags
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