25LC640AXT-E/ST Microchip Technology, 25LC640AXT-E/ST Datasheet - Page 8

• Manufacturer Part Number: 25LC640AXT-E/ST
• Description: 64K, 8K X 8, 2.5V SER EE EXT, ROTATED PINOUT 8 TSSOP 4.4mm T/R
• Manufacturer: Microchip Technology

Specifications of 25LC640AXT-E/ST

• 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: -40°C ~ 125°C
• Package / Case: 8-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 25LC640AXT-E/STTR

25AA640A/25LC640A
FIGURE 2-2:
FIGURE 2-3:
DS21830D-page 8
SCK
CS
SO
SI
SCK
SCK
CS
CS
SI
SI
0
0
0
0
0
1
32
7
1
0
0
BYTE WRITE SEQUENCE
Instruction
PAGE WRITE SEQUENCE
2
33
0
6
Instruction
2
0
3
5
34 35 36 37 38 39
3
0
Data Byte 2
0
4
0
4
4
0
5
3
5
0
High-Impedance
1
6
1
2
6
0
7
0
1
7
15 14 13 12
8
15 14 13 12
8
0
9 10 11
40
7
9 10 11
16-bit Address
41 42 43
16-bit Address
6
Data Byte 3
5
4
44 45
3
21 22 23 24 25 26 27 28 29 30 31
2
21 22 23 24 25 26 27 28 29 30 31
2
2
1
46 47
1
1
0 7
0
0
7
6
6
7
Data Byte n (32 max.)
5
Data Byte
5
6
Data Byte 1
© 2008 Microchip Technology Inc.
4
4
5
3
3
4
2
2
3
1
1
2
0
0
1
Twc
0