M95128-WMN6T STMicroelectronics, M95128-WMN6T Datasheet - Page 15

• Manufacturer Part Number: M95128-WMN6T
• Description: IC EEPROM 128KBIT 5MHZ 8SOIC
• Manufacturer: STMicroelectronics

Specifications of M95128-WMN6T

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 128K (16K x 8)
• Speed: 5MHz
• Interface: SPI, 3-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

M95128, M95128-W, M95128-R
5.2
Write Disable (WRDI)
One way of resetting the Write Enable Latch (WEL) bit is to send a Write Disable instruction
to the device.
As shown in
and the bits of the instruction byte are shifted in, on Serial Data Input (D).
The device then enters a wait state. It waits for a the device to be deselected, by Chip Select
(S) being driven high.
The Write Enable Latch (WEL) bit, in fact, becomes reset by any of the following events:
●
●
●
●
Figure 6.
Power-up
WRDI instruction execution
WRSR instruction completion
WRITE instruction completion.
Figure
Write Disable (WRDI) sequence
S
C
D
Q
6, to send this instruction to the device, Chip Select (S) is driven low,
Doc ID 5798 Rev 13
High Impedance
0
1
2
Instruction
3
4
5
6
7
AI03750D
Instructions
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