Datasheet

Description M93C86-x M93C76-R M93C66-x M93C56-x M93C46-x
6/33 DocID4997 Rev 15
1 Description
The M93C46 (1 Kbit), M93C56 (2 Kbit), M93C66 (4 Kbit), M93C76 (8 Kbit) and M93C86
(16
Kbit) are Electrically Erasable PROgrammable Memory (EEPROM) devices accessed
through the MICROWIRE bus protocol. The memory array can be configured either in bytes
(x8b) or in words (x16b).
The M93Cx6-W devices operate within a voltage supply range from 2.5 V to 5.5 V and the
M93Cx6-R devices operate within a voltage supply range from 1.8 V to 5.5 V. All these
devices operate with a clock frequency of 2
MHz (or less), over an ambient temperature
range of -40 °C / +85 °C.
Figure 1. Logic diagram
Table 2. Memory size versus organization
Device Number of bits Number of 8-bit bytes Number of 16-bit words
M93C86 16384 2048 1024
M93C76 8192 1024 512
M93C66 4096 512 256
M93C56 2048 256 128
M93C46 1024 128 64
Table 3. Signal names
Signal name Function Direction
S Chip Select Input
D Serial Data input Input
Q Serial Data output Output
C Serial Clock Input
ORG Organization Select Input
V
CC
Supply voltage
V
SS
Ground
AI01928
D
V
CC
M93Cx6
V
SS
C
Q
S
ORG