EM25LV010

1 Megabit (128K x 8) Serial Flash Memory

SPECIFICATION

Device Operation

The EM25LV010 uses Instruction to initiate the memory operation functions. The

Instructions are written to the device by asserting Serial Data In (D) input while keeping Chip

Select (S#) Low and are latched on the rising edge of Serial Clock(C).

Operation

S#

Hold#

W#

D

Q

Read

X

Data Out

Write

Address/Data In

High Z /

Status Register out

Standby

X

High Z

Deep Power Down Mode

1

X

High Z

Hold

X

High Z

Write Protect

2

X

High Z

Status Register Write

Inhibit

3

X

High Z

Write Protect (W#) (see Table 6).

Table 5: EM25LV010 Device Operation

Hold Function

The Hold (HOLD#) signal allows the EM25LV010 operation to be paused while it is actively

selected with S# at low. To enter into the Hold condition, the device must be selected with

Chip Select (S#) at Low. However, setting this Hold signal Low does not terminate any Write

Status Register, Program, or Erase cycle that is currently in progress.

The Hold condition starts on the falling edge of the Hold (HOLD#) signal, provided that this

coincides with Serial Clock (C) being at Low (shown in Figure 9). The Hold condition ends on

the rising edge of the Hold (HOLD#) signal, provided that this coincides with Serial Clock (C)

being at Low as well.

If the falling edge does not coincide with Serial Clock (C) being at Low, the Hold condition will

start when Serial Clock (C) goes Low. Similarly, if Serial Clock (C) is not at Low, the Hold

condition will end when Serial Clock (C) goes to Low (this is shown in Figure 9). During the

Hold condition, the Serial Data Output (Q) is at high impedance, and the Serial Data Input (D)

& Serial Clock (C) are Don’t Care.

Normally, the device is kept selected with Chip Select (S#) driven Low for the whole duration

of the Hold condition. This is to assure that the state of the internal logic remains unchanged

from the moment it enters the Hold condition.

This specification is subject to change without further notice. (11.08.2004 V1.0)

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