m95m01-r STMicroelectronics, m95m01-r Datasheet - Page 12

• Manufacturer Part Number: m95m01-r
• Description: 1 Mbit Serial Spi Bus Eeprom With High Speed Clock
• Manufacturer: STMicroelectronics

Operating features
4
4.1
4.1.1
4.1.2
4.1.3
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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 10 nF to 100 nF) 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
time, the Chip Select (S) line is not allowed to float but should follow the V
therefore recommended to connect the S line 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
Device reset
In order to prevent inadvertent Write operations during power-up (continuous rise of V
power on reset (POR) circuit is included. At Power-up, the device does not respond to any
instruction until V
lower than the minimum V
When V
G
G
G
G
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
Status Register:
–
–
CC
CC
rise time must not vary faster than 1 V/µs.
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 unchanged from the previous power-down (they are non-volatile bits)
has passed the POR threshold, the device is reset and in the following state:
CC
has reached the power on reset threshold voltage (this threshold is
CC
(min), V
CC
CC
operating voltage defined in
)
CC
CC
(max)] range must be applied (see
CC
rises continuously from V
CC
via a suitable pull-up resistor.
Table
8).
SS
Table
to V
CC
CC
CC
CC
W
/V
line with a
8.). In order to
).
voltage, it is
. During this
SS
CC
M95M01-R
package
voltage
CC
), a