參數(shù)資料
型號(hào): MPC5125YVN200
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 200 MHz, MICROCONTROLLER, PBGA324
封裝: 23 X 23 MM, 2.25 MM HEIGHT, 1 MM PITCH, ROHS COMPLIANT, PLASTIC, MS-034AJJ-1, TEPBGA-324
文件頁(yè)數(shù): 58/92頁(yè)
文件大小: 640K
代理商: MPC5125YVN200
Electrical and Thermal Characteristics
MPC5125 Microcontroller Data Sheet, Rev. 3
Freescale Semiconductor
61
4.3.7
NFC
The NAND flash controller (NFC) implements the interface to standard NAND flash memory devices. This section describes
the timing parameters of the NFC.
TH is the flash clock high time, TL is flash clock low time, where
TH = 5 × NFC_RATIO_H / 8 (ns)
Eqn. 6
TL = 5 × NFC_RATIO_L / 8 (ns)
Eqn. 7
Refer to the MPC5125 Reference Manual (MPC5125RM) for more information about NFC_RATIO_H and NFC_RATIO_L.
Table 26. NFC Target Timing Characteristics
Timing
Parameter
Description
Min. value
Max. value
Unit
SpecID
tCLS
NFC_CLE setup time
2TH + TL – 1
ns
A8.1
tCLH
NFC_CLE hold time
TH + TL – 1
ns
A8.2
tCS
NFC_CE[3:0] setup time
2TH + TL – 1
ns
A8.3
tCH
NFC_CE[3:0] hold time
TH + TL
ns
A8.4
tWP
NFC_WP pulse width
TL – 1
ns
A8.5
tALS
NFC_ALE setup time
2TH + TL
ns
A8.6
tALH
NFC_ALE hold time
TH + TL
ns
A8.7
tDS
Data setup time
TL – 1
ns
A8.8
tDH
Data hold time
TH – 1
ns
A8.9
tWC
Write cycle time
TH + TL – 1
ns
A8.10
tWH
NFC_WE hold time
TH – 1
ns
A8.11
tRR
Ready to NFC_RE low
4TH + 3TL + 90
ns
A8.12
tRP
NFC_RE pulse width
TL + 1
ns
A8.13
tRC
READ cycle time
TL + TH – 1
ns
A8.14
tREH
NFC_RE high hold time
TH – 1
ns
A8.15
tIS
Data input setup time
6
ns
A8.16
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