MX25L4005 Macronix International, MX25L4005 Datasheet - Page 6

• Manufacturer Part Number: MX25L4005
• Description: 4M-BIT [x 1] CMOS SERIAL FLASH
• Manufacturer: Macronix International

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The Serial Data Output (SO) is high impedance, both Serial Data Input (SI) and Serial Clock (SCLK) are don't care during
the HOLD operation. If Chip Select (CS#) signal goes high during HOLD operation, it has the effect on resetting the internal
logic of the device. It is necessary to drive HOLD# signal to high, and then to drive CS# to low for restarting communication
with the device.
P/N: PM1236
HOLD FEATURE
HOLD# pin signal goes low to hold any serial communications with the device. The HOLD feature will not stop the operation
of write status register, programming, or erasing in progress.
The operation of HOLD requires Chip Select(CS#) keeping low and starts on falling edge of HOLD# pin signal while Serial
Clock (SCLK) signal is being low (if Serial Clock signal is not being low, HOLD operation will not start until Serial Clock
signal being low). The HOLD condition ends on the rising edge of HOLD# pin signal while Serial Clock(SCLK) signal is
being low( if Serial Clock signal is not being low, HOLD operation will not end until Serial Clock being low), see Figure 1.
Figure 1. Hold Condition Operation
HOLD#
SCLK
(standard use)
Condition
Hold
6
(non-standard use)
Condition
Hold
MX25L4005
REV. 1.1, SEP. 30, 2005