M34D64-WMN6P STMicroelectronics, M34D64-WMN6P Datasheet - Page 8
![IC EEPROM 64KBIT 400KHZ 8SOIC](/photos/1/38/13851/497-8-soic_sml.jpg)
M34D64-WMN6P
Manufacturer Part Number
M34D64-WMN6P
Description
IC EEPROM 64KBIT 400KHZ 8SOIC
Manufacturer
STMicroelectronics
Datasheet
1.M34D64-WMN6TP.pdf
(27 pages)
Specifications of M34D64-WMN6P
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
64K (8K x 8)
Speed
400kHz
Interface
I²C, 2-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-8588-5
M34D64-WMN6P
M34D64-WMN6P
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Signal description
2
2.1
2.2
2.3
2.4
8/27
Signal description
Serial Clock (SCL)
This input signal is used to strobe all data in and out of the device. In applications where this
signal is used by slave devices to synchronize the bus to a slower clock, the bus master
must have an open drain output, and a pull-up resistor must be connected from Serial Clock
(SCL) to V
most applications, though, this method of synchronization is not employed, and so the pull-
up resistor is not necessary, provided that the bus master has a push-pull (rather than open
drain) output.
Serial Data (SDA)
This bidirectional signal is used to transfer data in or out of the device. It is an open drain
output that may be wire-OR’ed with other open drain or open collector signals on the bus. A
pull up resistor must be connected from Serial Data (SDA) to V
the value of the pull-up resistor can be calculated).
Chip Enable (E0, E1, E2)
These input signals are used to set the value that is to be looked for on the three least
significant bits (b3, b2, b1) of the 7-bit device select code. These inputs must be tied to V
or V
floating), these inputs are read as low (0,0,0).
Figure 3.
Write Control (WC)
The hardware Write Control pin (WC) is useful for protecting the top quarter of the memory
(as shown in
(WC = V
When unconnected, the WC input is internally read as V
SS
, to establish the device select code as shown in
IL
) or disable (WC = V
CC
Device select code
.
Figure
(Figure 5
4.) from inadvertent write. The Write Control signal is used to enable
indicates how the value of the pull-up resistor can be calculated). In
IH
) write instructions to the top quarter of the memory area.
E i
M34xxx
V CC
V SS
E i
M34xxx
V CC
V SS
Figure
IL
, and write operations are allowed.
3. When not connected (left
CC
.
(Figure 5
indicates how
Ai15122
M34D64-W
CC