M93C66-WMN6P STMicroelectronics, M93C66-WMN6P Datasheet - Page 5

• Manufacturer Part Number: M93C66-WMN6P
• Description: IC EEPROM 4KBIT 2MHZ 8SOIC
• Manufacturer: STMicroelectronics

Specifications of M93C66-WMN6P

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 4K (512 x 8 or 256 x 16)
• Speed: 2MHz
• Interface: Microwire, 3-Wire Serial
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Organization: 512 x 8
• Interface Type: Microwire
• Maximum Clock Frequency: 2 MHz
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.5 V
• Maximum Operating Current: 2 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 2.5 V, 5.5 V
• Memory Configuration: 512 X 8, 256 X 16
• Clock Frequency: 2MHz
• Supply Voltage Range: 2.5V To 5.5V
• Memory Case Style: SOIC
• No. Of Pins: 8
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-5672-5

An internal Power-on Data Protection mechanism
in the M93Cx6 inhibits the device when the supply
is too low.
Figure 3. DIP, SO, TSSOP and MLP
Connections (Top View)
Note: 1. See
The DU (Don’t Use) pin does not contribute to the
normal operation of the device. It is reserved for
use by STMicroelectronics during test sequences.
The pin may be left unconnected or may be con-
nected to V
V
er consumption.
SS
is recommended for the lowest stand-by pow-
2. DU = Don’t Use.
mensions, and how to identify pin-1.
PACKAGE MECHANICAL
CC
or V
Q
C
D
S
SS
1
2
3
4
M93Cx6
. Direct connection of DU to
AI01929B
8
7
6
5
V CC
DU
ORG
V SS
section for package di-
M93C86, M93C76, M93C66, M93C56, M93C46
MEMORY ORGANIZATION
The M93Cx6 memory is organized either as bytes
(x8) or as words (x16). If Organization Select
(ORG) is left unconnected (or connected to V
the x16 organization is selected; when Organiza-
tion Select (ORG) is connected to Ground (V
the x8 organization is selected. When the M93Cx6
is in stand-by mode, Organization Select (ORG)
should be set either to V
power consumption. Any voltage between V
and V
may increase the stand-by current.
POWER-ON DATA PROTECTION
To prevent data corruption and inadvertent write
operations during power-up, a Power-On Reset
(POR) circuit resets all internal programming cir-
cuitry, and sets the device in the Write Disable
mode.
–
–
For the M93Cx6 devices (5V range) the POR
threshold voltage is around 3V. For the M93Cx6-
W (3V range) and M93Cx6-R (2V range) the POR
threshold voltage is around 1.5V.
At Power-up and Power-down, the device
must not be selected (that is, Chip Select Input
(S) must be driven Low) until the supply
voltage reaches the operating value V
specified in
When V
properly reset (in the Write Disable mode) and
is ready to decode and execute incoming
instructions.
CC
applied to Organization Select (ORG)
CC
reaches its valid level, the device is
Table 9.
to
SS
Table
or V
CC
11..
for minimum
CC
5/31
CC
SS
SS
)
)