25C040/SN Microchip Technology, 25C040/SN Datasheet - Page 8

• Manufacturer Part Number: 25C040/SN
• Description: IC EEPROM 4KBIT 3MHZ 8SOIC
• Manufacturer: Microchip Technology

Specifications of 25C040/SN

• Memory Size: 4K (512 x 8)
• Package / Case: 8-SOIC (3.9mm Width)
• Operating Temperature: 0°C ~ 70°C
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 3MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 4.5 V ~ 5.5 V
• Organization: 512 x 8
• Interface Type: SPI
• Maximum Clock Frequency: 3 MHz
• Access Time: 150 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Current: 5 mA
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Operating Supply Voltage: 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: 25C40/SN

25AA040/25LC040/25C040
FIGURE 3-1:
FIGURE 3-2:
FIGURE 3-3:
DS21204E-page 8
SCK
CS
SO
SCK
SCK
SCK
SI
CS
CS
CS
SO
SI
SI
SI
0
0
0
0
0
0
0
1
7
0
25
1
0
1
0
Instruction
0
26
6
2
Instruction
2
0
2
Instruction
READ SEQUENCE
BYTE WRITE SEQUENCE
PAGE WRITE SEQUENCE
0
27 28 29 30 31 32
5
3
0
3
Data Byte 2
0
3
A8
A8
4
4
4
A8
4
0
3
0
5
5
0
5
1
2
1
6
6
High-impedance
1
6
0
0
1
7
7
1
7
A7 6
A7
0
8
8
A7
8
7
33
6
9 10 11
9 10 11 12 13 14 15 16 17 18 19 20 21 22
Lower Address Byte
Lower Address Byte
6
High-impedance
9 10 11 12 13 14 15 16 17 18 19 20 21 22
5
6
34 35 36
Lower Address Byte
5
5
4
5
4
Data Byte 3
4
4
13
3
3
3
14 15 16 17 18 19 20 21 22 23 24
3
37 38
2
2
2
2
1
1
1
1
39 40
0
A0 7
A0
0
7
7
6
6
6
7
5
Data Byte 1
5
5
4
6
Data Byte
Data Byte n (16 max)
Don’t Care
4
© 2006 Microchip Technology Inc.
Data Out
4
5
3
3
4
3
2
2
1
3
2
1
2
0
1
23
0
1
23
0
T
0
WC