m95080 STMicroelectronics, m95080 Datasheet - Page 12

• Manufacturer Part Number: m95080
• Description: 64/32/16/8 Kbit Serial Spi Bus Eeprom With High Speed Clock
• Manufacturer: STMicroelectronics

Operating features
4
4.1
4.1.1
4.1.2
4.1.3
Note:
12/45
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
Table
instruction and, for a Write instruction, until the completion of the internal write cycle (t
order to secure a stable DC supply voltage, it is recommended to decouple the V
a suitable capacitor (usually of the order of 10 nF to 100 nF) close to the V
pins.
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
Figure
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
Once V
state:
●
●
●
Status Register:
●
●
Once V
minimum V
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 non-volatile bits and, therefore, remain unchanged.
11). This voltage must remain stable and valid until the end of the transmission of the
CC
4).
CC
CC
rise time must not vary faster than 1 V/µs.
has passed over the POR threshold, the device is reset and is in the following
has passed the power on reset threshold voltage, and until V
CC
operating voltage, the memory must not be selected/accessed.
CC
has reached the power on reset threshold voltage (this threshold is
CC
(min), V
CC
CC
operating voltage defined in
)
CC
(max)] range must be applied (see
CC
CC
rises continuously from V
CC
via a suitable pull-up resistor (see
Table
9,
Table 10
SS
Table
to V
CC
CC
M95160, M95080
CC
CC
reaches the
and
9,
voltage, it is
/V
. During this
Table 10
CC
SS
CC
Table
package
voltage
line with
CC
W
11).
). In
and
), a