M95160 STMICROELECTRONICS [STMicroelectronics], M95160 Datasheet - Page 13

• Manufacturer Part Number: M95160
• Description: 16 Kbit and 8 Kbit serial SPI bus EEPROM with high speed clock
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M95160, M95080
4.1.4
4.2
4.3
4.4
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 Standby Power mode (that is
there should be no internal Write cycle in progress). Chip Select (S) should be allowed to
follow the voltage applied on V
Active Power and Standby Power Modes
When Chip Select (S) is Low, the device is selected, and in the Active Power mode. The
device consumes I
When Chip Select (S) is High, the device is deselected. If a Write cycle is not currently in
progress, the device then goes into the Standby Power mode, and the device consumption
drops to I
Hold condition
The Hold (HOLD) signal is used to pause any serial communications with the device without
resetting the clocking sequence.
During the Hold condition, the Serial Data Output (Q) is high impedance, and Serial Data
Input (D) and Serial Clock (C) are Don’t Care.
To enter the Hold condition, the device must be selected, with Chip Select (S) Low.
Normally, the device is kept selected, for the whole duration of the Hold condition.
Deselecting the device while it is in the Hold condition, has the effect of resetting the state of
the device, and this mechanism can be used if it is required to reset any processes that had
been in progress.
The Hold condition starts when the Hold (HOLD) signal is driven Low at the same time as
Serial Clock (C) already being Low.
The Hold condition ends when the Hold (HOLD) signal is driven High at the same time as
Serial Clock (C) already being Low.
Status Register
Figure 6.
Status Register contains a number of status and control bits that can be read or set (as
appropriate) by specific instructions. See
detailed description of the Status Register bits
CC1
shows the position of the Status Register in the control logic of the device. The
.
CC
, as specified in
CC
.
Table 13.
Section 6.3: Read Status Register (RDSR)
CC
), as soon as V
to
Table 18.
CC
drops from the normal
Operating features
for a
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