25LC512-E/P Microchip Technology, 25LC512-E/P Datasheet - Page 10
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25LC512-E/P
Manufacturer Part Number
25LC512-E/P
Description
IC EEPROM 512KBIT 20MHZ 8DIP
Manufacturer
Microchip Technology
Datasheet
1.25LC512-ISM.pdf
(36 pages)
Specifications of 25LC512-E/P
Memory Size
512K (64K x 8)
Package / Case
8-DIP (0.300", 7.62mm)
Operating Temperature
-40°C ~ 125°C
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Speed
20MHz
Interface
SPI, 3-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Organization
64 K x 8
Interface Type
SPI
Maximum Clock Frequency
20 MHz
Access Time
50 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.5 V
Maximum Operating Current
7 mA
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
25LC512-E/P
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
25LC512
2.3
The 25LC512 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.
The following is a list of conditions under which the
write enable latch will be reset:
FIGURE 2-4:
FIGURE 2-5:
DS22065C-page 10
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
• Power-up
• WRDI instruction successfully executed
• WRSR instruction successfully executed
• WRITE instruction successfully executed
• PE instruction successfully executed
• SE instruction successfully executed
• CE instruction successfully executed
0
0
4
4
1
5
1
5
1
6
1 0
6
0
7
0
7
2010 Microchip Technology Inc.