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參數資料
| 型號： | MC56U512HACA |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | MultiMediaCard Specification |
| 中文描述： | 多媒體卡規格 |
| 文件頁數： | 18/66頁 |
| 文件大小： | 1422K |
| 代理商： | MC56U512HACA |
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MultiMediaCard
TM
18
4.2 Pin Assignments in SPI Mode
Table 4- 2 SPI Pad Definition
Pin No.
1
2
3
4
5
6
7
Note : 1. S: power supply; I: input; O: output; PP: push-pull; OD: open-drain; NC: No connection or V
IH
4.3 MultiMediaCard Bus Topology
The MultiMediaCard bus has three communication lines and four supply lines:
-
CMD: Command is a bi-directional signal. Host and card drivers are operating in two modes, open
drain and push pull.
-
DAT: Data is a bi-directional signal. Host and card drivers are operating in push pull mode.
-
CLK: Clock is a host to card signal. CLK operates in push pull mode.
-
VDD: VDD is the power supply line for all cards.
-
VSS[1:2]: VSS are two ground lines.
Name
CS
DI
V
ss
V
cc
SCLK
V
ss2
DO
Type
*1
I
I
S
S
I
S
O/PP
Description
Chip Select
Data In
Ground
Power supply
Clock
Ground
Data out
Figure 4-2 Bus Circuitry Diagram
The R
OD
is switched on and off by the host synchronously to the open-drain and push-pull mode
transitions. R
DAT
and R
CMD
are pull-up resistors protecting the CMD and the DAT line against bus
floating when no card is inserted or when all card drivers are in a hi-impedance mode. A constant
current source can replace the R
OD
by achieving a better performance (constant slopes for the signal
相關PDF資料 |
PDF描述 |
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| MC56U512NACA | MultiMediaCard Specification |
| MC12U016HACA | Shielded Paired Cable; Number of Conductors:2; Conductor Size AWG:24; No. Strands x Strand Size:7 x 32; Jacket Material:Polyvinylchloride (PVC); Shielding Material:Aluminum Foil/Polyester Tape; Number of Pairs:1 RoHS Compliant: Yes |
| MC12U016NACA | Shielded Paired Cable; Number of Conductors:2; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:1; Leaded Process Compatible:Yes RoHS Compliant: Yes |
| MC12U032HACA | CABLE, 9505, 5PAIR, 30.5M; Cores, No. of:10; Conductor make-up:7/32AWG; Area, conductor CSA:0.2mm2; Diameter, External:7.34mm; Material, secondary insulation:PVC; Length, Reel (Imperial):100ft; Colour, secondary insulation:Chrome; RoHS Compliant: Yes |
| MC12U032NACA | Shielded Paired Cable; Number of Conductors:10; Conductor Size AWG:24; No. Strands x Strand Size:7 x 32; Jacket Material:Polyvinylchloride (PVC); Number of Pairs:5; Impedance:75ohm; Leaded Process Compatible:Yes; Voltage Nom.:300V RoHS Compliant: Yes |
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