M93C66-WDW6T STMicroelectronics, M93C66-WDW6T Datasheet - Page 10

• Manufacturer Part Number: M93C66-WDW6T
• Manufacturer: STMicroelectronics

Specifications of M93C66-WDW6T

• Density: 4Kb
• Interface Type: Serial (Microwire)
• Organization: 512x8/256x16
• Frequency (max): 2MHz
• Write Protection: No
• Data Retention: 40Year
• Operating Supply Voltage (typ): 3.3/5V
• Package Type: TSSOP
• Operating Temp Range: -40C to 85C
• Supply Current: 2mA
• Operating Supply Voltage (min): 2.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 8
• Lead Free Status / Rohs Status: Not Compliant

Operating features
3
3.1
3.1.1
3.1.2
3.1.3
3.1.4
10/37
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
DC supply voltage, it is recommended to decouple the V
(usually of the order of 10 nF to 100 nF) close to the V
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) line is not allowed to float and should be driven to V
recommended to connect the S line to V
The V
Power-up and 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
●
●
Power-down
At power-down (continuous decrease in 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).
Standby Power mode
deselected (assuming that there is a pull-down resistor on the S line)
CC
CC
rise time must not vary faster than 1 V/µs.
passes the POR threshold, the device is reset and is 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
(max)] range must be applied. In order to secure a stable
CC
CC
SS
CC
rises from V
via a suitable pull-down resistor.
M93C86, M93C76, M93C66, M93C56, M93C46
), as soon as V
CC
), the device does not respond to any
CC
SS
CC
/V
to V
Table
SS
CC
line with a suitable capacitor
CC
package pins.
SS
drops from the normal
9,
. During this time, the Chip
, it is therefore
Table 10
W
and
).
CC
Table
voltage
11).