1996 Microchip Technology Inc. DS21081D-page 1

FEATURES

• Single supply with operation from 4.5-5.5V
• Low power CMOS technology
- 1 mA active current typical
- 10

m

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, filtered inputs for noise suppres-
sion
• Output slope control to eliminate ground bounce
• 100 kHz 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 range

DESCRIPTION

The Microchip Technology Inc. 24C08B/16B is an 8K or
16K bit Electrically Erasable PROM intended for use in
extended/automotive temperature ranges. The device
is organized as four or eight blocks of 256 x 8-bit mem-
ory with a 2-wire serial interface. The 24C08B/16B also
has a page-write capability for up to 16 bytes of data.
The 24C08B/16B is available in the standard 8-pin DIP
and both 8-lead and 14-lead surface mount SOIC pack-
ages.
- Automotive (E): -40˚C to +125˚C

PACKAGE TYPES
BLOCK DIAGRAM
NC
SS
CCA0
A1
NC
A2
NC
V
1
2
3
4
5
6
7
14
13
12
NC
SCL
SDA
NC
9
8
11
10
WP
V
NC
14-lead
SOIC
24C08B/16B
24C08B/16B
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
24C08B/16B
A0
A1
A2
VSS
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
PDIP
8-lead
SOIC
HV GENERATOR
EEPROM
ARRAY
PAGE LATCHES
YDEC
XDEC
SENSE AMP
R/W CONTROL
MEMORY
CONTROL
LOGIC
I/O
CONTROL
LOGIC
WP
SDA SCL
VCC
VSS

24C08B/16B

8K/16K 5.0V I

2

C



Serial EEPROMs

I

2

C is a trademark of Philips Corporation.

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