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Title: Hardware/Buses/PCMCIA - Miniature Card Technology Primer Designed for low cost consumer needs. An introduction from PCMCIA.
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Miniature Card Primer function goToLink(theForm) { if (theForm.options[theForm.selectedIndex].value.substring(0,4) == "http") {window.open(theForm.options[theForm.selectedIndex].value,'_blank')} else {window.open(theForm.options[theForm.selectedIndex].value,'_top')} } HOMEContactJoin   Members Only About ResDir FAQ Press ExpressCard  Search Site  Quick Links Select One...HOMEAbout PCMCIAAsk the ExpertsBookstore/ShopCardBusContactDevelopersDirectorsFAQJoin PCMCIALinksMeetings/EventsMember ListMembers OnlyMembershipMiniature CardOur MissionPC CardPress ReleasesStaffTech SupportTuple IDs  PCMCIA Information  ExpressCard Info  PC Card Info  Press Room 

Miniature Card Primer

Main FeaturesApplicationsElectrical OverviewMechanical OverviewMiniature Card was designed for low cost consumer needs. Architected for a Linear Flash interface, Miniature Card requires no ASICs, Microcontrollers, or hardware overhead. The low-cost connector reduces host and card cost by requiring no connector on the card and no ejection mechanism on the host. The Miniature Card Standard is available in our bookstore.

Main Features

Small Form Factor38mm x 33mm x 3.5mm (73% smaller than a PC Card).Support for Flash, DRAM, ROMUp to 64MB5.0V, 3.3V, and x.xV SupportWrite Protection

Applications

PDA/Palmtop- Memory expansion (Flash/DRAM)Digital Audio Recorders- Voice data storageDigital Cameras- Image data storageSmart Phones- Voice/Email storage/retrieval

Electrical Overview

Supports Flash, ROM, DRAM- Up to four memory technologies on cardAttribute Information Structure (AIS)- Identifies type of memory technology on card- Stored within memory device60-connection Memory-only Bus- Linear memory- OE#/WE# accesses16-bit Non-multiplexed Data BusAddresses Up to 64 MBytesBurst Mode SupportVoltage Detect Signals (VS1#/VS2#)- 5.0V/3.3V/x.xV support- Hardware keys to prevent damage from wrong voltageSingle Power Supply- Separate programming voltage is not needed for FlashVccr- Allows self-refresh DRAMs to retain data when Vcc is offHot and Cold Insertion/RemovalESD Protection16-bit Hosts- Standard address/data control- BS8# tied high8-bit Hosts- Tie D15::8 to D7::0 on host- BS8# tied lowDRAM Interface- RAS#: Standard DRAM row addresses strobe- CASL#, CASH#: Column address strobe for low byte and high byte- SDA, SCL: Two wire I2C serial interface; store the Attibute Information Structure (AIS)- Vccr: Low current refresh voltage for self-refreshing DRAMsCard Insertion/Detection- CINS#: Early detection of card insertion; driven to GND when front of card connects to host- CD#: Second card detection; driven to GND after card has compressed elastomerOther Signals- VS1#, VS2#: Match PC Card Standard definitions for VS signals; for multi-voltage hosts- RESET#: Inverse of PC Card Standard; resets card to known state- BUSY#: Matches PC Card Standard definition for READY signal; driven low when the card is unable to accept some commands- RFU: Three signals are Reserved for Future UseAC/DC Specifications- AC Specifications: Flash/ROM specifications meet PC Card Standard; DRAM specifications meet industry standard DRAM timings- DC Specifications: CMOS levels; 5.0V +/- 5%, 3.3V +/- 5%, x.xV +/- 5%; 150mA maximum Icc for ROM/Flash; 250 mA maximum Icc for DRAMAttribute Information Structure (AIS)- Identification Data (2x): Manufacturer Name; Card Name; Level of Compliance- Burst Data (2x): Burst Access T; Burst Length- Compatibility Data (4x): Memory Type; JEDEC ID; Access Time; Array Size; Power Consumption- DRAM Data (2x): Page Depth; Refresh Rate; Refresh Current; Number of row and column addresses

Mechanical Overview

Easy Insertion/Removal- Insert front of Miniature Card into host pocket area- Miniature Card X-alignment notch engages host X-alignment key- Pressure against Vcc, GND and CDINS# provides early Y-alignment and powers the card at this point- Card rotates down until Y-alignment key features engage- Approximately seven degrees from final static postition, front Z-registrations engage the Z-datum of the host- Latch springs captivate the Miniature Card at the rear, card rests securely in the host  PCMCIA | The Worldwide Association for Modular Peripherals  © Personal Computer Memory Card International Association"PC Card", PC Card logo, "ExpressCard" and Rabbit symbol are PCMCIA trademarks.Webmaster | PCMCIA Home Page | ExpressCard Web Site | PCMCIA Members
 

Designed

for

low

cost

consumer

needs.

An

introduction

from

PCMCIA.

http://www.pcmcia.org/miniaturecard.htm

Miniature Card Technology Primer 2008 October

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Designed for low cost consumer needs. An introduction from PCMCIA.

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