25LC256-I/SN Microchip Technology, 25LC256-I/SN Datasheet - Page 5

• Manufacturer Part Number: 25LC256-I/SN
• Description: IC EEPROM 256KBIT 10MHZ 8SOIC
• Manufacturer: Microchip Technology

Specifications of 25LC256-I/SN

• Memory Size: 256K (32K x 8)
• Package / Case: 8-SOIC (3.9mm Width)
• Operating Temperature: -40°C ~ 85°C
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 10MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.5 V ~ 5.5 V
• Organization: 32 K x 8
• Interface Type: SPI
• Maximum Clock Frequency: 10 MHz
• Access Time: 50 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.5 V
• Maximum Operating Current: 6 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 2.5 V, 5.5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: Q1852874

FIGURE 1-1:
FIGURE 1-2:
FIGURE 1-3:
© 2007 Microchip Technology Inc.
SCK
CS
SO
SCK
SI
SO
CS
HOLD
SI
SCK
CS
SO
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
25AA256/25LC256
19
LSB in
17
3
n
n
5
ISB out
11
4
15
3
n - 1
12
DS21822F-page 5
n - 1
Mode 1,1
Mode 0,0