24AA04/08
4K/8K 1.8V I2C™ Serial EEPROMs
FEATURES
DIP
A0
8
VCC
A1
7
WP
6
SCL
4
5
SDA
A0
1
8
VCC
A1
2
7
WP
A2
3
6
SCL
VSS
4
5
SDA
14-Lead
SOIC
NC
1
14
NC
A0
2
13
VCC
A1
3
12
WP
NC
4
11
NC
A2
5
10
SCL
VSS
6
9
SDA
NC
7
8
NC
24AA04/08
24AA04/08
The Microchip Technology Inc. 24AA04/08 is a 4K bit or
8K bit Electrically Erasable PROM. The device is organized as two or four blocks of 256 x 8-bit memory with
a two wire serial interface. Low voltage design permits
operation down to 1.8 volts with standby and active currents of only 3 µA and 1 mA respectively. The 24AA04/
08 also has a page-write capability for up to 16 bytes of
data. The 24AA04/08 is available in the standard 8-pin
DIP and both 8-lead and 14-lead surface mount SOIC
packages.
3
VSS
DESCRIPTION
2
A2
8-lead
SOIC
1
24AA04/08
• Single supply with operation down to 1.8V
• Low power CMOS technology
- 1 mA active current typical
- 10 µA standby current typical at 5.5V
- 3 µA standby current typical at 1.8V
• Organized as 2 or 4 blocks of 256 bytes
(2 x 256 x 8) or (4 x 256 x 8)
• 2-wire serial interface bus, I2C™ compatible
• Schmitt trigger, filtered inputs for noise suppression
• Output slope control to eliminate ground bounce
• 100 kHz (1.8V) and 400 kHz (5V) compatibility
• Self-timed write cycle (including auto-erase)
• Page-write buffer for up to 16 bytes
• 2 ms typical write cycle time for page-write
• Hardware write protect for entire memory
• Can be operated as a serial ROM
• ESD protection > 4,000V
• 1,000,000 ERASE/WRITE cycles guaranteed
• Data retention > 200 years
• 8-pin DIP, 8-lead or 14-lead SOIC packages
• Available for extended temperature ranges
- Commercial (C):
0°C to +70°C
- Industrial (I):
-40°C to +85°C
PACKAGE TYPES
BLOCK DIAGRAM
WP
HV GENERATOR
I/O
CONTROL
LOGIC
MEMORY
CONTROL
LOGIC
XDEC
EEPROM
ARRAY
PAGE LATCHES
SDA
SCL
YDEC
VCC
VSS
SENSE AMP
R/W CONTROL
I2C is a trademark of Philips Corporation.
© 1999 Microchip Technology Inc.
DS21053G-page 1
