25AA512-I/SN Microchip Technology, 25AA512-I/SN Datasheet - Page 11
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25AA512-I/SN
Manufacturer Part Number
25AA512-I/SN
Description
IC EEPROM 512KBIT 20MHZ 8SOIC
Manufacturer
Microchip Technology
Datasheet
1.25AA512-ISN.pdf
(36 pages)
Specifications of 25AA512-I/SN
Memory Size
512K (64K x 8)
Package / Case
8-SOIC (3.9mm Width)
Operating Temperature
-40°C ~ 85°C
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Speed
20MHz
Interface
SPI, 3-Wire Serial
Voltage - Supply
1.8 V ~ 5.5 V
Organization
64 K x 8
Interface Type
SPI
Maximum Clock Frequency
20 MHz
Access Time
250 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
1.8 V
Maximum Operating Current
7 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
1.8 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
Company:
Part Number:
25AA512-I/SN
Manufacturer:
MICROCHIP
Quantity:
6 600
Company:
Part Number:
25AA512-I/SN
Manufacturer:
MCP
Quantity:
313
Company:
Part Number:
25AA512-I/SN
Manufacturer:
MICROCHIP
Quantity:
12 000
Company:
Part Number:
25AA512-I/SN
Manufacturer:
MICROCHIP
Quantity:
6 600
Part Number:
25AA512-I/SN
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
2.3
The 25AA512 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:
2010 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
• 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
25AA512
DS22021F-page 11