25AA080D-I/P Microchip Technology, 25AA080D-I/P Datasheet - Page 12

• Manufacturer Part Number: 25AA080D-I/P
• Description: IC SRL EEPROM 1KX8 1.8V 8-PDIP
• Manufacturer: Microchip Technology

Specifications of 25AA080D-I/P

• Memory Size: 8K (1K x 8)
• Package / Case: 8-DIP (0.300", 7.62mm)
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 3MHZ, 5MHZ, 10MHZ
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Organization: 1 K x 8
• Interface Type: SPI
• Maximum Clock Frequency: 10 MHz
• Access Time: 160 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Maximum Operating Current: 5 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• Minimum Operating Temperature: - 40 C
• Operating Supply Voltage: 2.5 V, 3.3 V, 5 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

25XX080C/D
2.7
The following protection has been implemented to
prevent inadvertent writes to the array:
• The write enable latch is reset on power-up
• A write enable instruction must be issued to set
• After a byte write, page write or STATUS register
• CS must be set high after the proper number of
• Access to the array during an internal write cycle
TABLE 2-4:
DS22151A-page 12
x = don’t care
the write enable latch
write, the write enable latch is reset
clock cycles to start an internal write cycle
is ignored and programming is continued
(SR bit 1)
WEL
0
1
1
1
Data Protection
WRITE-PROTECT FUNCTIONALITY MATRIX
(SR bit 7)
WPEN
x
0
1
1
1 (high)
0 (low)
(pin 3)
WP
x
x
Protected Blocks
Protected
Protected
Protected
Protected
2.8
The 25XX080C/D powers on in the following state:
• The device is in low-power Standby mode
• The write enable latch is reset
• SO is in high-impedance state
• A high-to-low-level transition on CS is required to
(CS = 1)
enter active state
Unprotected Blocks
Power-On State
Protected
Writable
Writable
Writable
© 2009 Microchip Technology Inc.
STATUS Register
Protected
Protected
Writable
Writable