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

• Manufacturer Part Number: 25LC640A-I/SN
• Description: IC EEPROM 64KBIT 10MHZ 8SOIC
• Manufacturer: Microchip Technology

Specifications of 25LC640A-I/SN

• Memory Size: 64K (8K x 8)
• Package / Case: 8-SOIC (3.9mm Width)
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 10MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Organization: 8 K x 8
• Interface Type: SPI
• Maximum Clock Frequency: 5 MHz
• Access Time: 100 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
• Package: 8SOIC N
• Density: 64 Kb
• Maximum Operating Frequency: 5 MHz
• Maximum Random Access Time: 100 ns
• Typical Operating Supply Voltage: 3.3|5 V
• Data Retention: 200(Min) Year
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

FIGURE 1-1:
FIGURE 1-2:
FIGURE 1-3:
© 2008 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
25AA640A/25LC640A
14
8
16
19
LSB in
17
3
n
n
5
ISB out
11
4
15
3
n - 1
12
DS21830D-page 5
n-1
Mode 1,1
Mode 0,0