24AA02/24LC02B
2K I2C™ Serial EEPROM
Description:
Device Selection Table
Part
Number
VCC
Range
Max. Clock
Frequency
Temp.
Ranges
The Microchip Technology Inc. 24AA02/24LC02B
(24XX02*) is a 2 Kbit Electrically Erasable PROM. The
device is organized as one block of 256 x 8-bit memory
with a 2-wire serial interface. Low-voltage design
permits operation down to 1.7V, with standby and
active currents of only 1 μA and 1 mA, respectively.
The 24XX02 also has a page write capability for up to
8 bytes of data. The 24XX02 is available in the
standard 8-pin PDIP, surface mount SOIC, TSSOP, 2x3
DFN and MSOP packages and is also available in the
5-lead SOT-23 package.
24AA02
1.7-5.5
2.5-5.5
400 kHz(1)
400 kHz
I
24LC02B
I, E
Note 1: 100 kHz for VCC <2.5V
Features:
• Single supply with operation down to 1.7V for
24AA02 devices, 2.5V for 24LC02B devices
• Low-power CMOS technology:
- Read current 1 mA, typical
Package Types
- Standby current 1 μA, typical
SOIC, TSSOP
PDIP, MSOP
• 2-wire serial interface, I2C™ compatible
• Schmitt Trigger inputs for noise suppression
• Output slope control to eliminate ground bounce
• 100 kHz and 400 kHz clock compatibility
• Page write time 3 ms, typical
A0
1
8
VCC
1
2
3
4
8
7
6
5
A0
A1
VCC
WP
A1
A2
2
3
4
7
6
5
WP
SCL
A2
SCL
SDA
VSS
SDA VSS
• Self-timed erase/write cycle
SOT-23-5
DFN
• 8-byte page write buffer
• Hardware write-protect
1
VCC
WP
A0
8
7
6
5
WP
Vcc
1
5
SCL
• ESD protection >4,000V
2
3
4
A1
SCL
SDA
2
3
A2
VSS
Vss
• More than 1 million erase/write cycles
• Data retention >200 years
4
SDA
• Factory programming available
• Packages include 8-lead PDIP, SOIC, TSSOP,
DFN, MSOP and 5-lead SOT-23
Note:
Pins A0, A1 and A2 are not used by the 24XX02. (No
internal connections).
• Pb-free and RoHS compliant
• Temperature ranges:
Block Diagram
- Industrial (I): -40°C to +85°C
- Automotive (E): -40°C to +125°C
HV
Generator
WP
I/O
Control
Logic
Memory
Control
Logic
EEPROM
Array
XDEC
Page
Latches
I/O
SCL
YDEC
SDA
VCC
VSS
Sense Amp.
R/W Control
© 2007 Microchip Technology Inc.
DS21709G-page 1