Personal Computer Memory Card International Association
[Cardbus Description] [Interface
ICs]
[Cardbus Standard Organizations]
[CardBus PinOut] [PCMCIA
Connectors]
[PCMCIA Card
Manufacturers]
[Home]
PCMCIA Defines both the Electrical and Physical specifications for a 68 pin interface residing in one of 3 form factors, which differ only in thickness;
Type I: 3.3mm x 85.6mm x 54.0mm (TxLxW), Version 2.1 allows the
length to increase 50mm to 135mm
Type II: 5.0mm x 85.6mm x 54.0mm (TxLxW), Version 2.1 allows the
length to increase 50mm to 135mm
Type III: 10.5mm x 85.6mm x 54.0mm (TxLxW)
CardBus operates over 32 bits at 33MHz [multiplexed address/data
path].
It's called CardBus when implementing the local PCI bus (32 data bits
only).
The peak data transfer rate is 132MBps [synchronous burst-transfer
orientation]. CardBus Uses only 3.3v VCC as the
power supply.
Cardbus devices may act as either [System-Bus] Master or
Slave, while 16-bit PC Card devices may only act as slaves.
CardBus is fully backward compatible with the older PCMCIA [PC-card
design]; however there may be some compatibility issues with the early
versions of the PCMCIA standards.
The implementation of this spec based
on the ISA bus is termed the PC Card A 8/16 bit data bus, 26 address
lines, no bus mastering operating at ISA Bus speeds (8 MHz)
using an ISA-like asynchronous protocol. How ever CardBus offers newer
technology with a faster and wider bus, providing higher
through-put.
Miniature Card is a smaller implementation of PCMCIA. Miniature
Cards dimensions are: 3.5mm x 33mm x 38mm (TxLxW). The electrical
specifications are a subset of the PC Card standard, restricted to memory
applications only. It uses a 16-bit data bus and a 24-bit address bus to
allow a single card to store up to 64MB.
CardBus Applications: Memory Card, Modem [RJ11 interface] Card,
Wireless Interface, Ethernet Interface [RJ45], CompactFlash card reader
[with a adaptor].
Personal Computer Memory Card International Association [appears to be gone]
Zilog {PCMCIA / Storage Controller IC}
IC Manufacturers {All other device types}
PCMCIA devices; both CardBus and PC card use a 68 pin connector, with two rows of 34 pins, @ 0.05 inch spacing. Female pins are used on the card side. The power and ground pins are longer than the signal lines, allowing them to make connect first.
Connector Vendors:
AVX {PCMCIA PC Memory Card Connector}
Foxconn Electronics {136 pos. PCMCIA / CardBus connector, 68 pos. PCMCIA / CardBus connector}
Methode Electronics Inc. {CardBus case and connectors, Frame Kits
Molex Inc. {Cardbus, PC card}
OUPIIN America Inc. {Smart Card and PCMCIA Connectors}
CardBus Interface Signal Assignments (Pinout)
Pin # | Signal name | Pin Function | Pin # | Signal name | Pin Function |
1 | Ground | ---- | 35 | GND | Ground |
2 | CAD0 | Address/data bit 0 , I/O | 36 | CCD1 | Card Detect 1 |
3 | CAD1 | Address/data bit 1, I/O | 37 | CAD2 | Address/data bit 2, I/O |
4 | CAD3 | Address/data bit 3, I/O | 38 | CAD4 | Address/data bit 4, I/O |
5 | CAD5 | Address/data bit 5, I/O | 39 | CAD6 | Address/data bit 6, I/O |
6 | CAD7 | Address/data bit 7, I/O | 40 | RFU | Reserved for future use |
7 | CC/BE0 | Byte Enable, I | 41 | CAD8 | Address/data bit 8, I/O |
8 | CAD9 | Address/data bit 9, I | 42 | CAD10 | Address/data bit 10, I/O |
9 | CAD11 | Address/data bit 11, I/O | 43 | CVS1 | ---, I |
10 | CAD12 | Address/data bit 12, I | 44 | CAD13 | Address/data bit 13, I/O |
11 | CAD14 | Address/data bit 14, I | 45 | CAD15 | Address/data bit 15, I/O |
12 | CC/BE1 | Byte Enable 1, I | 46 | CAD16 | Address/data bit 16, I/O |
13 | CPAR | Parity Bit, I | 47 | RFU | Reserved for future use |
14 | PERR | Parity Error, I | 48 | CBCLOCK | -- |
15 | CGNT | Bus arbitration grant, I | 49 | CSTOP | -- |
16 | CINT | Ready/Bus , O | 50 | CDEVSEL | Device Select |
17 | Vcc | Supply Voltage | 51 | Vcc | -- |
18 | Vpp1 | Programming Voltage 1 | 52 | Vpp2 | Programming Voltage 2 |
19 | CCLK | Bus clock, 0 to 33MHz | 53 | CTRDY | -- |
20 | CIRDY | Ready, I | 54 | CFRAME | Data Frame indicator |
21 | CC/BE2 | Byte enable 2, I | 55 | CAD17 | Address/data bit 17, I/O |
22 | CAD18 | Address/data bit 18, I/O | 56 | CAD19 | Address/data bit 19, I/O |
23 | CAD20 | Address/data bit 20, I/O | 57 | CVS2 | -- |
24 | CAD21 | Address/data bit 21, I/O | 58 | CRST | Reset |
25 | CAD22 | Address/data bit 22, I/O | 59 | CSERR | System Reset |
26 | CAD23 | Address/data bit 23, I/O | 60 | CREQ | Arbitration Request |
27 | CAD24 | Address/data bit 24, I/O | 61 | CC/BE3 | Byte Enable 3 |
28 | CAD25 | Address/data bit 25, I/O | 62 | CAUDIO | Card Audio Output, O |
29 | CAD26 | Address/data bit 26, I/O | 63 | CSTSCHG | -- |
30 | CAD27 | Address/data bit 27, I/O | 64 | CAD28 | Address/data bit 28, I/O |
31 | CAD29 | Address/data bit 29, I/O | 65 | CAD30 | Address/data bit 30, I/O |
32 | RFU | Reserved for future use | 66 | CAD31 | Address/data bit 31, I/O |
33 | CCLKRUN | --, O | 67 | CCD2 | Card Detect 2 |
34 | GND | Ground | 68 | GND | Ground |
The Cardbus pinouts are defined for a 68 pin connector; 2 rows of 34
pins. From the table above:
I: is Input, toward the card
O: is Output, output from the card
I/O: is Input or Output, bidirectional to-and-from the card
{Back to PCMCIA Cardbus Index}
Home | |||||||
Distributors | Components | Equipment | Software | Standards | Buses | Design | Reference |