M24512-WMW6TG STMicroelectronics, M24512-WMW6TG Datasheet - Page 6

• Manufacturer Part Number: M24512-WMW6TG
• Description: IC EEPROM 512KBIT 400KHZ 8SOIC
• Manufacturer: STMicroelectronics

Specifications of M24512-WMW6TG

• 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 (5.3mm Width), 8-SOP, 8-SOEIAJ
• Organization: 64 K x 8
• Interface Type: I2C
• Maximum Clock Frequency: 0.4 MHz
• Access Time: 900 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.5 V
• Maximum Operating Current: 5 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 3.3 V, 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8627-2; M24512-WMW6TG

Description
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Description
The M24512-x devices are I
(EEPROM). They are organized as 64 Kb × 8 bits.
The M24512-D also offers an additional page, named the Identification Page (128 bytes)
which can be written and (later) permanently locked in Read-only mode. This Identification
Page offers flexibility in the application board production line, as it can be used to store
unique identification parameters and/or parameters specific to the production line.
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 22
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
th
bit