參數(shù)資料
型號(hào): W99802G
廠商: WINBOND ELECTRONICS CORP
元件分類: 通信及網(wǎng)絡(luò)
英文描述: SPECIALTY TELECOM CIRCUIT, PBGA184
封裝: 10 X 10 MM, 1.60 MM HEIGHT, LEAD FREE, LFBGA-184
文件頁(yè)數(shù): 15/31頁(yè)
文件大?。?/td> 371K
代理商: W99802G
W99802G
- 22 -
5.3.6
SD/MMC Host Interface AC Characteristics
SD_CLK
SD : CMD, DAT[3:0]
MMC : CS, CMD, DAT0
T
OAD
output valid
SD_CLK
SD : CMD, DAT[3:0]
MMC : DAT0
T
ISU
T
IH
input valid
T
CLKH
T
CLKL
F
SD
T
OH
Figure 5-6 SD/MMC Host Interface Timing Diagram
Table 5-8 SD/MMC Host Interface Timing
SYMBOL
PARAMETER
CONDITIONS
MIN.
MAX.
UNIT
FSD
SD/MMC Clock Frequency
Identification Mode
0
400
KHz
FSD
SD/MMC Clock Frequency
Data Transfer Mode
0
25
MHz
TCLKH
SD/MMC Clock High Time
10
---
ns
TCLKL
SD/MMC Clock Low Time
10
---
ns
TISU
CMD & Data Input Setup Time
5
---
ns
TIH
CMD & Data Input Hold Time
5
---
ns
TOAD
Output Active Delay (Falling
Edge)
---
14
ns
TOH
Output Hold Time
20
---
ns
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