M95040-WDW6TP STMicroelectronics, M95040-WDW6TP Datasheet - Page 12

• Manufacturer Part Number: M95040-WDW6TP
• Description: IC EEPROM 4KBIT 10MHZ 8TSSOP
• Manufacturer: STMicroelectronics

Specifications of M95040-WDW6TP

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 4K (512 x 8)
• Speed: 10MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-TSSOP
• Organization: 512 x 8
• Interface Type: SPI
• Maximum Clock Frequency: 5 MHz
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.5 V
• Maximum Operating Current: 2 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: 497-8679-2; M95040-WDW6TP

Connecting to the SPI bus
3.1
12/43
SPI modes
These devices can be driven by a microcontroller with its SPI peripheral running in either of
the two following modes:
●
●
For these two modes, input data is latched in on the rising edge of Serial Clock (C), and
output data is available from the falling edge of Serial Clock (C).
The difference between the two modes, as shown in
bus master is in Stand-by mode and not transferring data:
●
●
Figure 4.
CPOL
0
1
CPOL=0, CPHA=0
CPOL=1, CPHA=1
C remains at 0 for (CPOL=0, CPHA=0)
C remains at 1 for (CPOL=1, CPHA=1)
CPHA
0
1
D
Q
SPI modes supported
C
C
MSB
Doc ID 6512 Rev 8
Figure
4, is the clock polarity when the
MSB
M95040, M95020, M95010
AI01438B