TS256~512MUSD80 80x microSD Memory Card Description Features • ROHS compliant product Transcend microSD Card is non-volatile, which means no external power is required to retain the • Operating Voltage: 2.7 ~ 3.6V information stored on it. Besides, it is also a • Operating Temperature: -25 ~ 85°C solid-state device that without moving parts to skip or • Durability: 10,000 insertion/removal cycles break down. Based on original SLC(Single Level Cell) • Fully compatible with SD card spec. v1.1 NAND flash chip, Transcend microSD card can offer • Comply with SD Association File System Specification an incredible combination of fast data transfer, great • Mechanical Write Protection Switch with microSD adapter flexibility, excellent security and incredibly small size. • SD Host allows MultiMediaCard upward compatibility • Form Factor: 11mm x 15mm x 1mm Placement 12345678 Front Back Pin Definition SD Mode SPI Mode Pin No. Name Type Description Name Type Description 1 DAT2 I/O/PP Data Line [Bit2] RSV Reserved 2 CD/DAT3 I/O/PP Card Detect / Data Line [Bit3] CS I Chip Select 3 CMD PP Command / Response DI I Data In 4 VDD S Supply voltage VDD S Supply voltage 5 CLK I Clock SCLK I Clock 6 VSS S Supply voltage ground VSS S Supply voltage ground 7 DAT0 I/O/PP Data Line [Bit0] DO O/PP Data out 8 DAT1 I/O/PP Data Line [Bit1] RSV S: Power Supply; I:Input; O:Output; PP:Push-Pull Transcend Information Inc. 1 Reserved TS256~512MUSD80 80x microSD Memory Card Architecture Transcend Information Inc. 2 TS256~512MUSD80 80x microSD Memory Card Bus Operating Conditions • General Parameter Symbol Min. Max. Unit -0.3 VDD+0.3 V -10 10 µA -10 10 µA Symbol Min. Max. Unit VDD 2.0 3.6 V Peak voltage on all lines Remark All Inputs Input Leakage Current All Outputs Output Leakage Current • Power Supply Voltage Parameter Supply voltage Supply voltage specified in OCR register Remark CMD0, 15,55,ACMD41 commands Except CMD0, 15,55, ACMD41 commands Supply voltage differentials (VSS1, VSS2) -0.3 Power up time 0.3 V 250 ms From 0v to VDD Min. Note. The current consumption of any card during the power-up procedure must not exceed 10 mA. • Bus Signal Line Load The total capacitance CL the CLK line of the SD Memory Card bus is the sum of the bus master capacitance CHOST, the bus capacitance CBUS itself and the capacitance CCARD of each card connected to this line: CL = CHOST + CBUS + Ν*CCARD Where N is the number of connected cards. Requiring the sum of the host and bus capacitances not to exceed 30 pF for up to 10 cards, and 40 pF for up to 30 cards, the following values must not be exceeded: Parameter Bus signal line capacitance Single card capacitance Symbol Min. Max. Unit CL 100 pF CCARD 10 pF 16 nH fPP ≤ 20 MHz 90 KΩ May be used for card detection Maximum signal line inductance Pull-up resistance inside card (pin1) RDAT3 10 Remark fPP ≤ 20 MHz, 7 cards Note that the total capacitance of CMD and DAT lines will be consist of CHOST, CBUS and one CCARD only since they are connected separately to the SD Memory Card host. Parameter Pull-up resistance Bus signal line capacitance Transcend Information Inc. Symbol Min. Max. Unit RCMD, RDAT 10 100 KΩ To prevent bus floating 250 pF fPP ≤ 5 MHz, 21 cards CL 3 Remark TS256~512MUSD80 80x microSD Memory Card • Bus Signal Levels As the bus can be supplied with a variable supply voltage, all signal levels are related to the supply voltage. To meet the requirements of the JEDEC specification JESD8-1A, the card input and output voltages shall be within the following specified ranges for any VDD of the allowed voltage range: Parameter Symbol Min. Output HIGH voltage VOH 0.75* VDD Output LOW voltage VOL Input HIGH voltage VIH Input LOW voltage VIL Transcend Information Inc. Max. Unit Remark V IOH = -100 μA @VDD min 0.125* VDD V IOL = 100 μA @VDD min 0.625* VDD VDD + 0.3 V VSS – 0.3 0.25* VDD V 4 TS256~512MUSD80 80x microSD Memory Card • Bus Timing Parameter Symbol Min Max. Unit Remark Clock CLK (All values are referred to min (VIH) and max (VIL) Clock frequency Data Transfer Mode fPP 0 25 MHz CL ≤ 100 pF, (7 cards) Clock frequency Identification Mode (The low freq. is required for MultiMediaCard compatibility.) fOD 0 400 KHz CL ≤ 250 pF, (21 cards) Clock low time tWL 10 ns CL ≤ 100 pF, (7 cards) 50 ns CL ≤ 250 pF, (21 cards) 10 ns CL ≤ 100 pF, (7 cards) 50 ns CL ≤ 250 pF, (21 cards) 10 ns CL ≤ 100 pF, (7 cards) 50 ns CL ≤ 250 pF, (21 cards) 10 ns CL ≤ 100 pF, (7 cards) 50 ns CL ≤ 250 pF, (21 cards) Clock high time Clock rise time Clock fall time tWH tTLH tTHL Inputs CMD, DAT (referenced to CLK) Input set-up time tISU 5 ns CL ≤ 25 pF, (1 cards) Input hold time tIH 5 ns CL ≤ 25 pF, (1 cards) ns CL ≤ 25 pF, (1 cards) Outputs CMD, DAT (referenced to CLK) Output Delay time Transcend Information Inc. tODLY 0 5 14 TS256~512MUSD80 80x microSD Memory Card Reliability and Durability Temperature Operation: -25°C / 85°C (Target spec) Storage: -40°C (168h) / 85°C (500h) Junction temperature: max. 95°C Moisture and corrosion Operation: 25°C / 95% rel. humidity Storage: 40°C / 93% rel. hum./500h Salt Water Spray: 3% NaCl/35C; 24h acc. MIL STD Method 1009 Durability 10000 mating cycles Bending 10N Torque 0.10N*m , +/- 2.5deg max Drop test 1.5m free fall UV light exposure UV: 254nm, 15Ws/cm² according to ISO 7816-1 Visual inspection Shape and form No warppage; no mold skin; complete form; no cavities surface smoothness <= -0.1 mm/cm² within contour; no cracks; no pollution (fat, oil dust, etc.) Above technical information is based on industry standard data and tested to be reliable. However, Transcend makes no warranty, either expressed or implied, as to its accuracy and assumes no liability in connection with the use of this product. Transcend reserves the right to make changes in specifications at any time without prior notice. Transcend Information Inc. 6