T
T
TS
S
S1
1
12
2
28
8
8M
M
M~
~
~4
4
4G
G
GM
M
MM
M
MC
C
C4
4
4
MMCplus
Transcend Information Inc.
1
Description
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
Features
• Storage Capacity: 128MB ~ 4GB
• Operating Voltage: 2.7~3.6V
• Support clock frequencies: 0~52MHz
• Support different Bus width: x1, x4, x8
• Operating Temperature: -25°C ~ 85°C
• Data access mode: Byte mode
• Fully compatible with MultiMediaCard system
specification version 4.0 and backwards compatibility
with previous specification
• Form Factor: 32mm x 24mm x 1.4mm
Front Back
Pin Definition
MMC Mode SPI Mode
Pin No. Name Type Description Name Type Description
1 DAT3 I/O/PP Data CS I Chip select
2 CMD I/O/PP/OD Command/Response DI I/PP Data in
3 VSS1 S Ground VSS S Ground
4 VDD S Power supply VDD S Power supply
5 CLK I Clock SCLK I Clock
6 VSS2 S Ground VSS2 S Ground
7 DAT0 I/O/PP Data DO O/PP Data out
8 DAT1 I/O/PP Data Not used
9 DAT2 I/O/PP Data Not used
10 DAT4 I/O/PP Data Not used
11 DAT5 I/O/PP Data Not used
12 DAT6 I/O/PP Data Not used
13 DAT7 I/O/PP Data Not used
S: Power Supply; I:Input; O:Output; PP:Push-Pull; OD:Open-Drain; NC:Not Connected