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SMCXXXBF датащи(PDF) 21 Page - STMicroelectronics

номер детали SMCXXXBF
подробное описание детали  32MByte, 64MByte, 128MByte, 256MByte, 512MByte, 1GByte, 2GByte, and 4GByte 3.3/5V Supply CompactFlash??Card
PDF  91 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SMCXXXBF датащи(HTML) 21 Page - STMicroelectronics

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SMCxxxBF
Electrical interface
21/91
–VS1, –VS2
(PC Card Memory Mode)
O
33,40
Voltage Sense Signals.–VS1 is grounded so that the CIS
can be read at 3.3 volts and –VS2 is reserved by PCMCIA
for a secondary voltage.
–VS1, –VS2
(PC Card I/O Mode)
Same for all modes.
–VS1, –VS2
(True IDE Mode)
Same for all modes.
–WAIT
(PC Card Memory Mode)
O
42
ST CF does not assert the WAIT (IORDY) signal
–WAIT
(PC Card I/O Mode)
IORDY
(True IDE Mode)
–WE
(PC Card Memory Mode)
I36
Driven by the host to strobe memory write data to the
registers.
–WE
(PC Card I/O Mode)
Used for writing to the configuration registers.
–WE
(True IDE Mode)
Not used, should be connected to VCC by the host.
WP
(PC Card Memory Mode)
O24
No write protect switch available. It is held Low after the
completion of the reset initialization sequence.
–IOIS16
(PC Card I/O Mode)
Used for the 16 bit Port (–IOIS16) function. Low indicates
that a 16 bit or odd Byte only operation can be performed at
the addressed port.
–IOCS16
(True IDE Mode)
Asserted Low when the Card is expecting a Word data
transfer cycle.
Table 9.
Signal Description (continued)
Signal Name
Dir.
Pin
Description



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