24LC025T-/ST データシートの表示（PDF） - Microchip Technology
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24LC025T-/ST Datasheet PDF : 12 Pages
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M 24LC024/24LC025
2K 2.5V I2C™ Serial EEPROM
FEATURES
• Single supply with operation from 2.5 to 5.5V
• Low power CMOS technology
- 1 mA active current typical
- 10 µA standby current typical at 5.5V
• Organized as a single block of 128 bytes (256 x 8)
• Hardware write protection for entire array
(24LC024)
• 2-wire serial interface bus, I2C compatible
• 100kHz and 400kHz compatibility
• Page-write buffer for up to 16 bytes
• Self-timed write cycle (including auto-erase)
• 3.5 ms typical write cycle time for page write
• Address lines allow up to eight devices on bus
• 10,000,000 erase/write cycles guaranteed
• ESD protection > 4,000V
• Data retention > 200 years
• 8-pin PDIP, SOIC or TSSOP packages
• Available for extended temperature ranges
- Commercial (C):
- Industrial (I):
0°C to +70°C
-40°C to +85°C
DESCRIPTION
The Microchip Technology Inc. 24LC024/24LC025 is a
2K bit Serial Electrically Erasable PROM with a voltage
range of 2.5V to 5.5V. The device is organized as a
single block of 256 x 8-bit memory with a 2-wire serial
interface. Low current design permits operation with
typical standby and active currents of only 10 µA and 1
mA respectively. The device has a page-write capability
for up to 16 bytes of data. Functional address lines
allow the connection of up to eight 24LC024/24LC025
devices on the same bus for up to 16K bits of contigu-
ous EEPROM memory. The device is available in the
standard 8-pin PDIP, 8-pin SOIC (150 mil), and TSSOP
packages.
PACKAGE TYPES
PDIP/SOIC
A0 1
A1 2
A2 3
Vss 4
8 Vcc
7 WP*
6 SCL
5 SDA
TSSOP
A0 1
A1 2
A2 3
VSS 4
8 VCC
7 WP*
6 SCL
5 SDA
*WP pin available only on 24LC024. This
pin has no internal connection on 24LC025
BLOCK DIAGRAM
A0 A1 A2
WP*
HV Generator
I/O
Control
Logic
Memory
Control
Logic
XDEC
SDA SCL
VCC
VSS
EEPROM
Array
Write Protect
Circuitry
YDEC
SENSE AMP
R/W CONTROL
*WP pin available only on 24LC024. This
pin has no internal connection on 24LC025
© 1997 Microchip Technology Inc.
Preliminary
DS21210A-page 1
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