PCMCIA Cardbus Description, PinOut and Signal Names

PCMCIA 32 bit Bus

Personal Computer Memory Card International Association

[Cardbus Description] [Interface ICs]
[Cardbus Standard Organizations]
[CardBus PinOut] [PCMCIA Connectors]
[PCMCIA Card Manufacturers]
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CardBus Description

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)

It's called CardBus when implementing the local PCI bus (32 data bits only). CardBus operates over 32 bits at 33MHz [multiplexed address/data path]. The peak data transfer rate is 132MBps [synchronous burst-transfer orientation]. CardBus Uses only 3.3v V_CC 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]

Amazon.com Widgets

{CardBus Index}

PCMCIA Standard Organizations

PCMCIA {PCMCIA.org}

{CardBus Index}

PCMCIA Bus Interface ICs

Zilog {PCMCIA / Storage Controller IC}

IC Manufacturers {All other device types}

{CardBus Index}

PCMCIA Connector Manufactures

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.

AVX {PCMCIA PC Memory Card Connector}

Comm Con Connectors Inc.

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}

Tyco Electronics

{PCMCIA Cardbus Index}

Cardbus, PinOut

CardBus Interface Signal Assignments (Pinout)

**CardBus Connector Pin Out**
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

Engineering Design Key words: PCMCIA, Personal Computer Memory Card International Association, CardBus, PC Card, Interconnect, Electrical layer, Standard, Interface Standard Data Bus, Standard, Specification, Spec, Interface, IC, Physical Interface, Description, Manufacturer, Personal Computer, PC, Pin assignment, Pin-out, Pinout, Connector Pins

{Back to PCMCIA Cardbus Index}


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