Table 29. NFC Target Timing Parameters
參數(shù)資料
型號: MC9328MX21VMR2
廠商: Freescale Semiconductor
文件頁數(shù): 41/100頁
文件大?。?/td> 0K
描述: IC MCU I.MX21 266MHZ 289-MAPBGA
標(biāo)準(zhǔn)包裝: 1,000
系列: i.MX21
核心處理器: ARM9
芯體尺寸: 32-位
速度: 266MHz
連通性: 1 線,EBI/EMI,I²C,IrDA,MMC,智能卡,SPI,SSI,UART/USART,USB OTG
外圍設(shè)備: DMA,I²S,LCD,POR,PWM,WDT
輸入/輸出數(shù): 192
程序存儲器類型: ROMless
電壓 - 電源 (Vcc/Vdd): 1.45 V ~ 3.3 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 289-LFBGA
包裝: 帶卷 (TR)
Specifications
MC9328MX21 Technical Data, Rev. 3.4
Freescale Semiconductor
45
Table 29. NFC Target Timing Parameters1,2
1. High is defined as 80% of signal value and low is defined as 20% of signal value. All timings are listed according to this NFC
clock frequency (multiples of NFC clock period) except NF16, which is not NFC clock related.
2. The read data is generated by the NAND Flash device and sampled with the internal NFC clock.
ID
Parameter
Symbol
Relationship to NFC
Clock Period
(T)
NFC Clock
22.17 MHz
T = 45 ns
NFC Clock
33.25 MHz
T = 30 ns
Unit
Min
Max
Min
Max
Min
Max
NF1 NFCLE Setup Time
tCLS
T
45
30
ns
NF2 NFCLE Hold Time
tCLH
T
45
30
ns
NF3 NFCE Setup Time
tCS
T
45
30
ns
NF4 NFCE Hold Time
tCH
T
45
30
ns
NF5 NF_WP Pulse Width
tWP
T
45
30
ns
NF6 NFALE Setup Time
tALS
T
45
30
ns
NF7 NFALE Hold Time
tALH
T
45
30
ns
NF8 Data Setup Time
tDS
T
45
30
ns
NF9 Data Hold Time
tDH
T
45
30
ns
NF10 Write Cycle Time
tWC
2T
90
60
ns
NF11 NFWE Hold Time
tWH
T
45
30
ns
NF12 Ready to NFRE Low
tRR
4T
180
120
ns
NF13 NFRE Pulse Width
tRP
1.5T
67.5
45
ns
NF14 READ Cycle Time
tRC
2T
90
60
ns
NF15 NFRE High Hold Time
tREH
0.5T
22.5
15
ns
NF16 Data Setup on READ
tDSR
15
15
15
ns
NF17 Data Hold on READ
tDHR
0
0
0
ns
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