ESMMC64 ESMMC256 ESMMC128 Operating Voltage: 2.7V 3.6V Password d

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ESMMC64 ESMMC256 ESMMC128 Operating Voltage: 2.7V 3.6V Password d

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64MB/128MB/256MB/512MB MultiMediaCardDescription
ESMMC64 ESMMC256 ESMMC128
Operating Voltage: 2.7V 3.6V Password data access protection Small erase block size bytes, tagged erase supported. Read block size programmable between 2048 bytes Damage free powered card insertion removal protection Read speed Sustained: 13.7Mbits/s Burst(one block): 20Mbit/s Write speed Sustained: 2.8Mbits/s Burst(one block): 20Mbit/s stacked card 20MHz, 2.7V 3.6V) Access time: 300µs power dissipation ESMMC512 64MB
512MB MultiMediaCard These highly integrated flash memory with serial random accessible dedicated serial interface optimized fast reliable data transmission. They fully compatible consumer standard, called MultiMediaCard system standard
defined
MultiMediaCard
system specification. system
MultiMediaCard
mass-storage system based innovations semiconductor technology. been designed provide inexpensive, mechanically robust storage medium card form multimedia consumer applications mobile devices (handheld PCs, digital cameras, players, etc.) store, copy, move information like small hard drive.
Definition
Name VSS1 VSS2 Type I/O/PP/OD I/O/PP Description connection Command/Response Ground Power Supply Clock Ground Data
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64MB/128MB/256MB/512MB MultiMediaCardPhysical Outline
Front
Back
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64MB/128MB/256MB/512MB MultiMediaCardArchitecture
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64MB/128MB/256MB/512MB MultiMediaCardTemperature Characteristic
Parameter
Storage temperature Operating temperature Junction temperature
Unit
Electrical Characteristics
Absolute Maximum Ratings
Parameter Supply voltage Total power dissipation protection Input voltage Output voltage High-level output current Low-level output current VImax VOmax VOHmax IOHmax -0.5 -0.5 -100 Symbol -0.5
Vcc+0.5 Vcc+0.5
Unit
Remark
Human body model max(Vcc) max(Vcc) Short protected Short protected
Signal Line Load
total capacitance each line MultiMediaCard each card connected this line: CHOST CBUS N*CCARD Where number connected cards. Requiring host capacitance's exceed 30pF cards, 40pF cards, following values must exceeded:
master capacitance CHOST, capacitance CBUS itself capacitance CCARD
Parameter Pull-up resistance Pull-up resistance signal line capacitance signal line capacitance Signal card capacitance Maximum signal line inductance
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Symbol RCMD RDAT CCARD
Unit
Remark prevent floating prevent floating fpp5MHz, cards fpp20MHz, cards
fpp20MHz
64MB/128MB/256MB/512MB MultiMediaCard3. Recommend Operating Conditions
Parameter Supply voltage Inputs Low-level input current High-level input current Outputs High-level output current Low-level output current Clock Clock frequency data transfer mode (pp) Input Clock frequency ident. Mode (od) Clock cycle time data transfer mode (pp) Clock cycle time ident. Mode (od) Clock time Clock high time Clock input rise time Clock input fall time Clock time Clock high time Clock input rise time Clock input fall time 1/fpp 1/fOD CL<100pF,(10 cards) CL<100pF,(10 cards) CL<100pF,(10 cards) CL<100pF,(10 cards) CL<250pF,(30 cards) CL<250pF,(30 cards) CL<250pF,(30 cards) CL<250pF,(30 cards) Symbol VSS-0.3 0.625VCC 0.25VCC VCC+0.3 Unit CL<100pF,(10 cards) Remark
Recommend Conditions
Parameter Clock Input Pull-up resistance Pull-up resistance signal line capacitance Symbol RCMD RDAT Maximum signal line inductance Unit Remark prevent floating prevent floating
fpp5MHz, cards fpp20MHz, cards fpp20MHz
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64MB/128MB/256MB/512MB MultiMediaCard5. Operating Characteristics
Parameter High speed supply current Minimal supply current Symbol Unit Remark 20MHz, 3.6V 0Hz, 3.6V
standby state digital inputs (including current) outputs High-level output voltage Low-level output voltage Inputs: CMD, DAT(Referred CLK), DI(Referred SCLK), Outputs: CMD, DAT(Referred CLK), DO(Referred SCLK) Output set-up time Output hold time 10ns tOSU Input hold time Input set-up time tISU 0.125VCC 0.75VCC Input leakage current
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64MB/128MB/256MB/512MB MultiMediaCardTiming Diagram Data Input Output
access time (tAT) divided into parts: TSAD: synchronous access time. This time defines time maximum number cycles which required access byte memory field. TAAD: synchronous access time read byte memory field. synchronous part access time command frame length some additional internal cycles (NSAD cycles). 20MHz cycle 50ns (1/fCLK), multiplied with NSAD resulting frame time TSAD 0.8µs. asynchronous access delay TAAD 600µs maximum. resulting memory access time both parts: TSAD TAAD with TSAD NSAD/ fCLK
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64MB/128MB/256MB/512MB MultiMediaCardAccess Time
Parameter Synchronous access delay cycles Synchronous access delay Asynchronous access delay Memory access time Symbol 600.8 Unit cycles
20MHz clock frequency 20MHz clock frequency
Remark
NSAD TSAD TAAD
Above technical information based industry standard data tested reliable. However, Transcend makes warranty, either expressed implied, accuracy assumes liability connection with this product. Transcend reserves tight make changes specifications time without prior notice.
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ESMMC64 ESMMC256 ESMMC128 Operating Voltage: 2.7V 3.6V Password d

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