M24256-BRDW6G STMICROELECTRONICS [STMicroelectronics], M24256-BRDW6G Datasheet - Page 9

• Manufacturer Part Number: M24256-BRDW6G
• Description: 512 Kbit and 256 Kbit Serial I2C bus EEPROM with three Chip Enable lines
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M24512-W, M24512-R, M24256-BW, M24256-BR
2.5
2.5.1
2.5.2
2.5.3
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
In order to secure a stable DC supply voltage, it is recommended to decouple the V
with a suitable capacitor (usually of the order of 10nF to 100nF) close to the V
package 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
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
mode.
Power-down
At Power-down (continuous decrease of V
operating voltage to below the Power On Reset threshold voltage, the device stops
responding to any instruction sent to it.
During Power-down, the device must be deselected and in the Standby Power mode (that is
there should be no internal Write cycle in progress).
Figure 4.
20
16
12
8
4
0
10
CC
has passed the POR threshold, the device is reset and is in Standby Power
Maximum R
CC
has reached the Power On Reset threshold voltage (this threshold is
CC
(min), V
P
CC
CC
Value versus Bus Parasitic Capacitance (C) for an I
operating voltage defined in
)
C (pF)
CC
100
CC
(max)] range must be applied (see
fc = 400kHz
CC
fc = 100kHz
), as soon as V
CC
), the device does not respond to any
Table 7
CC
1000
drops from the normal
MASTER
and
V CC
Table 7
Table
Signal description
SDA
SCL
W
8).
).
CC
and
CC
/V
R
2
P
voltage
Table
SS
C Bus
C
CC
AI01665b
line
9/31
R
8).
P
C