25LC256-I/ST Microchip Technology, 25LC256-I/ST Datasheet - Page 19

• Manufacturer Part Number: 25LC256-I/ST
• Description: IC EEPROM 256KBIT 10MHZ 8TSSOP
• Manufacturer: Microchip Technology

Specifications of 25LC256-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: 2.5 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): 2.5 V
• Maximum Operating Current: 6 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 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

© 2007 Microchip Technology Inc.
8-Lead Plastic Thin Shrink Small Outline (ST) – 4.4 mm Body [TSSOP]
Notes:
1. Pin 1 visual index feature may vary, but must be located within the hatched area.
2. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side.
3. Dimensioning and tolerancing per ASME Y14.5M.
Note:
BSC: Basic Dimension. Theoretically exact value shown without tolerances.
REF: Reference Dimension, usually without tolerance, for information purposes only.
For the most current package drawings, please see the Microchip Packaging Specification located at
http://www.microchip.com/packaging
Number of Pins
Pitch
Overall Height
Molded Package Thickness
Standoff
Overall Width
Molded Package Width
Molded Package Length
Foot Length
Footprint
Foot Angle
Lead Thickness
Lead Width
NOTE 1
A
A1
b
N
1
2
D
e
Dimension Limits
A2
E1
c
E
Units
A2
A1
E1
L1
N
E
D
e
A
L
b
φ
c
L1
MIN
0.80
0.05
4.30
2.90
0.45
0.09
0.19
0°
–
25AA256/25LC256
MILLIMETERS
0.65 BSC
6.40 BSC
1.00 REF
NOM
1.00
4.40
3.00
0.60
8
–
–
–
–
–
Microchip Technology Drawing C04-086B
L
MAX
1.20
1.05
0.15
4.50
3.10
0.75
0.20
0.30
8°
φ
DS21822F-page 19