M95320-W STMICROELECTRONICS [STMicroelectronics], M95320-W Datasheet - Page 11

• Manufacturer Part Number: M95320-W
• Description: 32 Kbit and 64 Kbit Serial SPI bus EEPROMs with high speed clock
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M95320, M95640, M95320-x, M95640-x
4
4.1
4.1.1
4.1.2
4.1.3
Operating features
Supply voltage (V
Operating supply voltage V
Prior to selecting the memory and issuing instructions to it, a valid and stable V
within the specified [V
secure a stable DC supply voltage, it is recommended to decouple the V
suitable capacitor (usually of the order of 10nF to 100nF) close to the V
pins.
This voltage must remain stable and valid until the end of the transmission of the instruction
and, for a Write instruction, until the completion of the internal write cycle (t
Power-up conditions
When the power supply is turned on, V
Select (S) is not allowed to float but must follow the V
be connected to V
In addition, the Chip Select (S) input offers a built-in safety feature, as the S input is edge
sensitive as well as level sensitive: after Power-up, the device does not become selected
until a falling edge has first been detected on Chip Select (S). This ensures that Chip Select
(S) must have been High, prior to going Low to start the first operation.
The V
Internal device Reset
In order to prevent inadvertent Write operations during Power-up, a Power On Reset (POR)
circuit is included. At Power-up (continuous rise of V
instruction until V
lower than the minimum V
When V
Status Register state:
Standby Power mode
deselected (at next Power-up, a falling edge is required on Chip Select (S) before any
instructions can be started).
not in the Hold Condition
the Write Enable Latch (WEL) is reset to 0
Write In Progress (WIP) is reset to 0. The SRWD, BP1 and BP0 bits of the Status
Register are in the same state as when the power was last removed (they are non-
volatile bits).
CC
CC
rise time must not be faster than 1V/µs.
has passed the POR threshold, the device is reset and in the following state:
CC
CC
has reached the Power On Reset threshold voltage (this threshold is
via a suitable pull-up resistor.
CC
(min), V
CC
CC
operating voltage defined in Tables XX).
)
CC
CC
(max)] range must be applied (see Table 8.). In order to
CC
rises from V
CC
CC
SS
), the device will not respond to any
voltage, therefore the S line should
to V
CC
. During this time, the Chip
CC
Operating features
CC
/V
W
line with a
SS
).
CC
package
voltage
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