25AA256-I/ST Microchip Technology, 25AA256-I/ST Datasheet - Page 14

• Manufacturer Part Number: 25AA256-I/ST
• Description: IC EEPROM 256KBIT 10MHZ 8TSSOP
• Manufacturer: Microchip Technology

Specifications of 25AA256-I/ST

• Memory Size: 256K (32K x 8)
• Package / Case: 8-TSSOP
• Operating Temperature: -40°C ~ 85°C
• Format - Memory: EEPROMs - Serial
• Memory Type: EEPROM
• Speed: 10MHz
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 1.8 V ~ 5.5 V
• Organization: 32 K x 8
• Interface Type: SPI
• Maximum Clock Frequency: 10 MHz
• Access Time: 50 ns
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Maximum Operating Current: 6 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

25AA256/25LC256
4.0
4.1
DS21822C-page 14
PACKAGING INFORMATION
Package Marking Information
Note:
Legend:
8-Lead DFN
8-Lead PDIP
8-Lead SOIC
8-Lead TSSOP
XXXXXXXX
T/XXXNNN
T/XXYYWW
XXXXXXXX
XXXXXXX
T/XXXXX
YYWW
NNN
YYWW
Custom marking available.
XXXX
TYWW
NNN
NNN
YY
NNN
T
Blank
WW
XX...X Part number
Temperature (I, E)
Commercial
Year code (last 2 digits of calendar year) except TSSOP
which uses only the last 1 digit
Week code (week of January 1 is week ‘01’)
Alphanumeric traceability code
Example
Preliminary
25LC256
I/SN 0328
Example:
25AA256
I/P 1L7
Example:
Example:
25LC256
0328
I/MF
1L7
5LE
I328
1L7
0328
:
1L7
25AA256
25LC256
Device
TSSOP 1st Line Marking Codes
 2003 Microchip Technology Inc.
std mark
5AE
5LE
Pb-free
NAE
NLE
mark