25LC128-I/ST Microchip Technology, 25LC128-I/ST Datasheet - Page 9
![IC EEPROM 128KBIT 10MHZ 8TSSOP](/photos/6/59/65937/c04-086_st_sml.jpg)
25LC128-I/ST
Manufacturer Part Number
25LC128-I/ST
Description
IC EEPROM 128KBIT 10MHZ 8TSSOP
Manufacturer
Microchip Technology
Datasheet
1.25AA128-IP.pdf
(26 pages)
Specifications of 25LC128-I/ST
Memory Size
128K (16K x 8)
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
Package / Case
8-TSSOP
Memory Configuration
16K X 8
Ic Interface Type
SPI
Clock Frequency
10MHz
Supply Voltage Range
2.5V To 5.5V
Memory Case Style
TSSOP
No. Of Pins
8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
25LC128-I/ST(25LC128-E/ST)
Manufacturer:
BX
Quantity:
2 500
2.4
The 25XX128 contains a write enable latch.
Table 2-4 for the Write-Protect functionality matrix. This
latch must be set before any write operation will be
completed internally. The WREN instruction will set the
latch, and the WRDI will reset the latch.
FIGURE 2-4:
FIGURE 2-5:
© 2009 Microchip Technology Inc.
Write Enable (WREN) and Write
Disable (WRDI)
WRITE ENABLE SEQUENCE (WREN)
WRITE DISABLE SEQUENCE (WRDI)
SCK
CS
SO
SCK
SI
CS
SO
SI
0
0
0
0
0
1
0
1
See
High-Impedance
0
High-Impedance
0
2
2
0
0
3
3
The following is a list of conditions under which the
write enable latch will be reset:
• Power-up
• WRDI instruction successfully executed
• WRSR instruction successfully executed
• WRITE instruction successfully executed
0
0
4
4
25AA128/25LC128
1
5
1
5
1
6
0
6
0
7
0
7
DS21831D-page 9