M24512-WMN6P STMicroelectronics, M24512-WMN6P Datasheet - Page 6

• Manufacturer Part Number: M24512-WMN6P
• Description: IC EEPROM 512KBIT 400KHZ 8SOIC
• Manufacturer: STMicroelectronics

Specifications of M24512-WMN6P

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 512K (64K 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)
• Memory Configuration: 64K X 8
• Interface Type: I2C, Serial
• Clock Frequency: 1MHz
• Access Time: 500ns
• Supply Voltage Range: 2.5V To 5.5 V
• Memory Case Style: SOIC
• No. Of Pins: 8
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8582-5; M24512-WMN6P

Description
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Description
The M24512-x devices are I
(EEPROM). They are organized as 64 Kb × 8 bits.
The M24512-x can decode the type identifier code (1010) in accordance with the I
definition. The M24512-DR also decodes the type identifier code (1011) when accessing the
identification page.
The M24512-DR offers an additional Identification Page (128 bytes) which can be written
and (later) permanently locked in Read Only mode. This Identification Page can be used for
example in the assembly line, to store some application identification parameters.
The device behaves as a slave in the I
by the serial clock. Read and Write operations are initiated by a Start condition, generated
by the bus master. The Start condition is followed by a device select code and Read/Write
bit (RW) terminated by an acknowledge bit.
When writing data to the memory, the device inserts an acknowledge bit during the 9
time, following the bus master’s 8-bit transmission. When data is read by the bus master, the
bus master acknowledges the receipt of the data byte in the same way. Data transfers are
terminated by a Stop condition after an Ack for Write, and after a NoAck for Read.
Figure 1.
Table 1.
E0, E1, E2
SDA
SCL
WC
V
V
CC
SS
Signal name
Logic diagram
Signal names
2
C-compatible electrically erasable programmable memories
Doc ID 16459 Rev 20
Chip Enable
Serial Data
Serial Clock
Write Control
Supply voltage
Ground
2
C protocol, with all memory operations synchronized
Function
M24512-R, M24512-W, M24512-DR
Inputs
I/O
Input
Input
Direction
2
C bus
th
bit