M93C66-WDW6T STMicroelectronics, M93C66-WDW6T Datasheet - Page 6

• 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

Description
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Description
The M93C86, M93C76, M93C66, M93C56 and M93C46 are electrically erasable
programmable memory (EEPROM) devices. They are accessed through a Serial Data input
(D) and Serial Data output (Q) using the MICROWIRE bus protocol.
Figure 1.
Table 2.
The memory array organization may be divided into either bytes (x8) or words (x16) which
may be selected by a signal applied on Organization Select (ORG). The bit, byte and word
sizes of the memories are as shown in
S
D
Q
C
ORG
V
V
CC
SS
Signal name
Logic diagram
Signal names
Chip Select
Serial Data input
Serial Data output
Serial Clock
Organisation Select
Supply voltage
Ground
ORG
D
C
S
Table 3.
V CC
V SS
Function
M93Cx6
M93C86, M93C76, M93C66, M93C56, M93C46
Q
AI01928
Input
Input
Output
Input
Input
Direction