M95640-RMN6P STMicroelectronics, M95640-RMN6P Datasheet - Page 18

• Manufacturer Part Number: M95640-RMN6P
• Description: IC EEPROM 64KBIT 5MHZ 8SOIC
• Manufacturer: STMicroelectronics

Specifications of M95640-RMN6P

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 64K (8K x 8)
• Speed: 5MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 1.8 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: 497-8614-5; M95640-RMN6P

Instructions
6.2
18/48
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 8.
Power-up
WRDI instruction execution
WRSR instruction completion
WRITE instruction completion.
Figure
Write Disable (WRDI) sequence
S
C
D
Q
8, to send this instruction to the device, Chip Select (S) is driven low,
Doc ID 16877 Rev 15
High Impedance
0
1
2
Instruction
3
M95640, M95640-W, M95640-R, M95640-DR
4
5
6
7
AI03750D