25C320-I/P Microchip Technology, 25C320-I/P Datasheet - Page 9
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25C320-I/P
Manufacturer Part Number
25C320-I/P
Description
IC EEPROM 32KBIT 3MHZ 8DIP
Manufacturer
Microchip Technology
Datasheet
1.25AA320-ISN.pdf
(26 pages)
Specifications of 25C320-I/P
Memory Size
32K (4K x 8)
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Speed
3MHz
Interface
SPI, 3-Wire Serial
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-DIP (0.300", 7.62mm)
Memory Configuration
4K X 8
Ic Interface Type
SPI
Clock Frequency
3MHz
Supply Voltage Range
4.5V To 5.5V
Memory Case Style
DIP
No. Of Pins
8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
25C320-I/P
Manufacturer:
MCP
Quantity:
1 855
Company:
Part Number:
25C320-I/P
Manufacturer:
MICROCHIP
Quantity:
12 000
3.4
The 25XX320 contains a write enable latch.
Table 3-3 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 3-4:
FIGURE 3-5:
© 2008 Microchip Technology Inc.
Write Enable (WREN) and Write
Disable (WRDI)
WRITE ENABLE SEQUENCE
WRITE DISABLE SEQUENCE
SCK
SCK
CS
SO
CS
SO
SI
SI
0
0
0
0
0
0
1
1
25AA320/25LC320/25C320
See
High-Impedance
High-Impedance
0
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
1
1
5
5
1
1 0
6
6
0
0
7
7
DS21227F-page 9