Transcend TS128MMC4, TS1GMMC4, TS4GMMC4, TS512MMC4, TS2GMMC4 QQUICK INSTRUCTION GUIDE
...
T
S
1
T
S
1
T
S
1
Description
2
2
2
8
8
8
M
M
M
~
~
~
4
4
4
G
G
G
M
M
M
M
M
M
C
C
C
4
4
4
MMCplus
Features
TS128MMC4 ~ TS4GMMC4 is a 128MB ~ 4GB
MMCplus memory card. It’s a fastest, low-power,
highly integration memory card. It is designed to
provide an inexpensive, mechanically robust storage
medium in card form for multimedia consumer
applications and mobile devices (handheld PCs,
digital cameras, MP3 players, etc.) to store, copy,
and move data at high-speed transfer rate.
Placement
Storage Capacity: 128MB ~ 4GB
Operating Voltage: 2.7~3.6V
Support clock frequencies: 0-20 MHz, 0-26 MHz, or
0-52 MHz
Support different Bus width: x1, x4, x8
Operating Temperature: -25°C ~ 85°C
Compatible with Multimedia Card system specification
version 4.2
Form Factor: 32mm x 24mm x 1.4mm
Front Back
S: Power Supply; I:Input; O:Output; PP:Push-Pull; OD:Open-Drain; NC:Not Connected
Pin Definition
MMC Mode
Pin No.
Name Type Description
1 DAT3 I/O/PP Data
2 CMD I/O/PP/OD Command/Response
3 VSS1 S Ground
4 VDD S Power supply
5 CLK I Clock
6 VSS2 S Ground
7 DAT0 I/O/PP
8 DAT1 I/O/PP Data
9 DAT2 I/O/PP Data
10 DAT4 I/O/PP Data
11 DAT5 I/O/PP Data
12 DAT6 I/O/PP Data
13 DAT7 I/O/PP Data
Data
Transcend Information Inc.
1
T
S
1
2
8
M
~
4
G
M
T
S
1
2
8
M
~
4
T
S
1
2
8
M
Multimedia Card Architecture
~
4
G
G
M
M
M
M
M
C
4
4
4
C
C
MMCplus
Transcend Information Inc.
2
T
S
1
2
8
M
~
4
G
M
M
T
S
1
2
8
M
~
4
G
T
S
1
2
8
M
~
4
Electrical DC Characteristics
•General bus operating conditions
Parameter Symbol Min Max Unit
Peak voltage on all lines -0.5
Input Leakage Current (before initialization sequence
and/or the internal pull up resistors connected)
Input Leakage Current (after initialization sequence and
the internal pull up resistors disconnected)
G
M
M
M
M
C
C
4
4
C
4
All Inputs
All Outputs
-100
-10
MMCplus
3.6 V
100 uA
10 uA
Output Leakage Current (before initialization sequence) -100
Output Leakage Current (after initialization sequence) -10
•MMC high-voltage power supply voltage
Parameter Symbol Min Max Unit
Supply voltage VDD 2.7
Supply voltage differentials (VSS1, VSS2) -0.5
• Bus Signal Line Load
The total capacitance CL of each line of the MultiMedia Card bus is the sum of the bus master capacitance
C
, the bus capacitance C
HOST
C
= C
L
HOST
+ C
BUS
+ C
CARD
itself and the capacitance C
BUS
of the card connected to this line:
CARD
100 uA
10 uA
3.6 V
0.5 V
Parameter Symbol Min Max Unit Remark
Pull-up resistance for CMD R
Pull-up resistance for DAT0-7 R
Internal pull up resistance DAT1-DAT7 R
Bus signal line capacitance CL
Single card capacitance C
Maximum signal line inductance
Transcend Information Inc.
4.7
CMD
50
DAT
50
int
CARD
3
100 KOhm to prevent bus floating
100 KOhm to prevent bus floating
150 kOhm
30 pF Single card
7 pF
16 nH f
to prevent unconnected
lines floating
<= 52 MHz
PP
Loading...