M
FEATURES
24LC08B/16B MODULES
ISO MODULE LAYOUT
8K/16K I
2
C
™
Serial EEPROMs in ISO Micromodules
• ISO 7816 compliant contact locations
• Single supply with operation from 2.5-5.5V
• Low power CMOS technology
- 1 mA active current typical
- 10
µ
A standby current typical at 5.5V
• Organized as 4 or 8 blocks of 256 bytes
(4 x 256 x 8) or (8 x 256 x 8)
• 2-wire serial interface bus, I
2
C
™
compatible
• Schmitt trigger inputs for noise suppression
• Output slope control to eliminate ground bounce
• 100 kHz (2.5V) and 400kHz (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
• ESD protection > 4,000V
• 1,000,000 ERASE/WRITE cycles guaranteed
• Data retention > 200 years
• Temperature range
- Commercial (C):
0˚C to +70˚C
V
DD
V
SS
SCL
SDA
BLOCK DIAGRAM
HV GENERATOR
DESCRIPTION
The Microchip Technology Inc. 24LC08B/16B are 8K
and 16K bit Electrically Erasable PROMs in ISO mod-
ules for smart card applications. The device is orga-
nized as four or eight blocks of 256 x 8-bit memory with
a 2-wire serial interface. The 24LC08B and 24LC16B
also have a page-write capability for up to 16 bytes of
data.
I/O
CONTROL
LOGIC
MEMORY
CONTROL
LOGIC
XDEC
EEPROM
ARRAY
PAGE LATCHES
SDA
SCL
YDEC
V
CC
V
SS
SENSE AMP
R/W CONTROL
I
2
C is a trademark of Philips Corporation.
©
1997 Microchip Technology Inc.
DS21224A-page 1
MICROCHIP [ MICROCHIP TECHNOLOGY ]
