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MX23L12854 Datasheet(PDF) 3 Page - Macronix International

Part No. MX23L12854
Description  128M-BIT Low Voltage, Serial Mask ROM Memory with 50MHz SPI Bus Interface
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Maker  MCNIX [Macronix International]
Homepage  http://www.macronix.com
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MX23L12854 Datasheet(HTML) 3 Page - Macronix International

 
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P/N: PM1141
REV. 1.1, MAY. 04, 2005
MX23L12854
SIGNAL DESCRIPTION
Serial Data Output (Q). This output signal is used to
transfer data serially out of the device. Data is shifted out
on the falling edge of Serial Clock (C).
Serial Data Input (D). This input signal is used to transfer
data serially into the device. It receives instructions,
addresses, and the data to be programmed. Values are
latched on the rising edge of Serial Clock (C).
Serial Clock (C). This input signal provides the timing of
the serial interface. Instructions, addresses, or data
present at Serial Data Input (D) are latched on the rising
edge of Serial Clock (C). Data on Serial Data Output (Q)
changes after the falling edge of Serial Clock (C).
Chip Select (S#). When this input signal is High, the
device is deselected. Driving Chip Select (S#) Low ena-
bles the device, placing it in the active power mode.
After Power-up, a falling edge on Chip Select (S#) is
required prior to the start of any instruction.
Hold (HOLD#). The Hold (HOLD#) signal is used to pause
any serial communications with the device without
deselecting the device.
During the Hold condition, the Serial Data Output (Q) is high
impedance, and Serial Data Input (D) and Serial Clock (C)
are Don't Care.
To start the Hold condition, the device must be selected,
with Chip Select (S#) driven Low.


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