Computer buses and slots connectors pinouts  > 0 pinouts
32-bit bus defined by PCMCIA.

CardBus, the 32-bit high performance bus mastering architecture for PC Cards, was standardized by the PCMCIA in May 1996. This bus is targeted to mobile computers. PCI-like 32-bit interface operates at a power-saving 3.3 volts, and cards can include standardized power-management mechanisms. The CardBus interface allows an I/O adapter or a memory module to be added to or removed without disrupting the system"s operation. It adds high bandwidth PCI-based capabilities to the PC Card technology.

CardBus PC Cards are attached to their host system through a sturdy 68-pin connector, which is common to all PC Cards. (CardBus cards employ a shielding shroud around this connector, to enhance their signal integrity).

CardBus cards adopt the well-established PC Card form-factors. There are different types of CardBus cards (sizes are TxLxW):

  • Type I: 3.3mm x 85.6mm x 54.0mm
  • Type II: 5.0mm x 85.6mm x 54.0mm
  • Type III: 10.5mm x 85.6mm x 54.0mm

CardBus provides a 32-bit multiplexed address/data path, which operates at PCI local-bus speeds of up to 33 MHz, yielding a peak bandwidth of 132MB/sec. CardBus accomplishes this by adopting the synchronous burst-transfer orientation of PCI, as well as a bus protocol, which is essentially identical to that of PCI.

Pin Name Description
1GNDGround
2CAD0Address/Data 0
3CAD1Address/Data 1
4CAD3Address/Data 3
5CAD5Address/Data 5
6CAD7Address/Data 7
7CCBE0#Command/Byte Enable 0
8CAD9Address/Data 9
9CAD11Address/Data 11
10CAD12Address/Data 12
11CAD14Address/Data 14
12CCBE1#Command/Byte Enable 1
13CPARParity
14CPERR#Parity error
15CGNT#Grant
16CINT#Interrupt
17VccVcc
18Vpp1Vpp1
19CCLKCCLK
20CIRDY#Initiator Ready
21CCBE2#Command/Byte Enable 2
22CAD18Address/Data 18
23CAD20Address/Data 20
24CAD21Address/Data 21
25CAD22Address/Data 22
26CAD23Address/Data 23
27CAD24Address/Data 24
28CAD25Address/Data 25
29CAD26Address/Data 26
30CAD27Address/Data 27
31CAD29Address/Data 29
32RSRVDReserved
33CCLKRUN#CCLKRUN#
34GNDGround
35GNDGround
36CCD1#Card Detect 1
37CAD2Address/Data 2
38CAD4Address/Data 4
39CAD6Address/Data 6
40RSRVDReserved
41CAD8Address/Data 8
42CAD10Address/Data 10
43CVS1
44CAD13Address/Data 13
45CAD15Address/Data 15
46CAD16Address/Data 16
47RSRVDReserved
48CBLOCK#Block ???
49CSTOP#Stop transfer cycle
50CDEVSEL#Device Select
51VccVcc
52Vpp2Vpp2
53CTRDY#Target Ready
54CFRAME#Address or Data phase
55CAD17Address/Data 17
56CAD19CAD19
57CVS2
58CRST#Reset
59CSERR#System Error
60CREQ#Request ???
61CCBE3#Command/Byte Enable 3
62CAUDIOAudio ???
63CSTSCHG
64CAD28Address/Data 28
65CAD30Address/Data 30
66CAD31Address/Data 31
67CCD2#Card Detect 2
68GNDGround

Another representation (looking into card)

      
GND 135 GND
CAD0<->236-->!CCD1
CAD1<->337<->CAD2
CAD3<->438<->CAD4
CAD5<->539<->CAD6
CAD7<->640-RSRVD
!CCBE0-->741<->CAD8
CAD9<->842<->CAD10
CAD11<->943-CVS1
CAD12<->1044<->CAD13
CAD14<->1145<->CAD15
!CCBE1-->1246<->CAD16
CPAR-->1347---RSRVD
!CPERR-->1448-!CBLOCK
!CGNT-->1549-!CSTOP
!CINT-->1650-!CDEVSEL
Vcc-->1751<--Vcc
Vpp1-->1852<--Vpp2
CCLK-->1953-!CTRDY
!CIRDY-2054-!CFRAME
!CCBE2-->2155<->CAD17
CAD18<->2256<->CAD19
CAD20<->2357-CVS2
CAD21<->2458<--!CRST
CAD22<->2559-!CSERR
CAD23<->2660-!CREQ
CAD24<->2761<--!CCBE3
CAD25<->2862-->CAUDIO
CAD26<->2963-CSTSCHG
CAD27<->3064<->CAD28
CAD29<->3165<->CAD30
RSRVD---3266<->CAD31
!CCLKRUN<--3367-->!CCD2
GND---3468---GND
68 pin male connector layout
68 pin male connector
at the controller
68 pin female connector layout
68 pin female connector
at the peripherals
According to 2 reports in our database (1 positive and 1 negative) this pinout may be incorrect.

Is this pinout
CardBus visual pinout:
CardBus diagram
click to enlarge
Source(s) of this and additional information: PC Card Standard at PC Card"s homepage and others
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