25LC640A-M/SN Microchip Technology, 25LC640A-M/SN Datasheet - Page 5

• Manufacturer Part Number: 25LC640A-M/SN
• Description: 64K, 8K X 8, 2.5V SER EE, MIL 8 SOIC 3.90mm (.150") TUBE
• Manufacturer: Microchip Technology

Specifications of 25LC640A-M/SN

• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Memory Size: 64K (8K x 8)
• Speed: 10MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -55°C ~ 125°C
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FIGURE 1-1:
FIGURE 1-2:
FIGURE 1-3:
© 2009 Microchip Technology Inc.
SCK
CS
SO
SI
SCK
HOLD
SI
SO
CS
SCK
SO
CS
SI
Mode 1,1
Mode 0,0
HOLD TIMING
SERIAL INPUT TIMING
SERIAL OUTPUT TIMING
2
n + 2
n + 2
5
MSB out
MSB in
9
6
13
10
n + 1
16
n + 1
High-Impedance
Don’t Care
n
17
7
18
n
High-Impedance
Don’t Care
14
8
16
19
LSB in
17
3
n
n
5
25LC640A
ISB out
11
4
15
3
n - 1
12
DS22144A-page 5
n-1
Mode 1,1
Mode 0,0