MX23L6454 Ver la hoja de datos (PDF) - Macronix International

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Fabricante

MX23L6454

64M-BIT Low Voltage, Serial Mask ROM Memory with 50MHz SPI Bus Interface

Macronix International 

MX23L6454

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. 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.

P/N: PM1127

REV. 1.1, MAR. 09, 2005

3

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