Fairchild Semiconductor NM24C03ULM8X, NM24C03ULN, NM24C03UN, NM24C03UMT8, NM24C03UVM8 Datasheet

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NM24C02U/NM24C03U Rev. B.1

NM24C02U/NM24C03U – 2K-Bit Serial EEPROM 2-Wire Bus Interface

August 1999

© 1998 Fairchild Semiconductor Corporation

NM24C02U/NM24C03U
2K-Bit Serial EEPROM
2-Wire Bus Interface

General Description

The NM24C02U/NM24C03U are 2K (2,048) bit serial interface
CMOS EEPROMs (Electrically Erasable Programmable Read­Only Memory). These devices fully conform to the Standard I2C™
2-wire protocol which uses Clock (SCL) and Data I/O (SDA) pins
to synchronously clock data between the "master" (for example a
microprocessor) and the "slave" (the EEPROM device). In addi­tion, the serial interface allows a minimal pin count packaging
designed to simplify PC board layout requirements and offers the
designer a variety of low voltage and low power options.

NM24C03U incorporates a hardware "Write Protect" feature, by
which, the upper half of the memory can be disabled against
programming by connecting the WP pin to VCC. This section of
memory then effectively becomes a ROM (Read-Only Memory)
and can no longer be programmed as long as WP pin is connected
to VCC.

Fairchild EEPROMs are designed and tested for applications requir­ing high endurance, high reliability and low power consumption for a
continuously reliable non-volatile solution for all markets.

Block Diagram

Functions

■ I2C™ compatible interface

■ 2,048 bits organized as 256 x 8

■ Extended 2.7V – 5.5V operating voltage

■ 100 KHz or 400 KHz operation

■ Self timed programming cycle (6ms typical)

■ "Programming complete" indicated by ACK polling

■ NM24C03U: Memory "Upper Block" Write Protect pin

Features

■ The I2C™ interface allows the smallest I/O pincount of any
EEPROM interface

■ 16 byte page write mode to minimize total write time per byte

■ Typical 200µA active current (I

CCA

)

■ Typical 1µA standby current (ISB) for "L" devices and 0.1µA
standby current for "LZ" devices

■ Endurance: Up to 1,000,000 data changes

■ Data retention greater than 40 years

H.V. GENERATION

TIMING &CONTROL

E2PROM

ARRAY

YDEC

DATA REGISTER

XDEC

CONTROL

LOGIC

WORD
ADDRESS
COUNTER

SLAVE ADDRESS

REGISTER &

COMPARATOR

START

STOP

LOGIC

CK

D

IN

R/W

SDA

SCL

V

SS

WP

V

CC

D

OUT

A2
A1
A0

DS800007-1

I2C™ is a registered trademark of Philips Electronics N.V.

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NM24C02U/NM24C03U Rev. B.1

NM24C02U/NM24C03U – 2K-Bit Serial EEPROM 2-Wire Bus Interface

A0
A1
A2

V

SS

V

CC

NC
SCL
SDA

8
7
6
5

1
2
3
4

Connection Diagrams

Dual-in-Line Package (N), SO Package (M8), and TSSOP Package (MT8)

Top View

See Package Number N08E, M08A, and MTC08

Pin Names

A0,A1,A2 Device Address Inputs

V

SS

Ground
SDA Serial Data I/O
SCL Serial Clock Input

NC No Connection
V

CC

Power Supply

Dual-in-Line Package (N), SO Package (M8), and TSSOP Package (MT8)

Top View

See Package Number N08E, M08A, and MTC08

Pin Names

A0,A1,A2 Device Address Inputs

V

SS

Ground
SDA Serial Data I/O
SCL Serial Clock input

WP Write Protect
V

CC

Power Supply

A0
A1
A2

V

SS

V

CC

WP
SCL
SDA

8
7
6
5

1
2
3
4

NM24C02U

NM24C03U

DS800007-2

DS800007-3

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NM24C02U/NM24C03U Rev. B.1

NM24C02U/NM24C03U – 2K-Bit Serial EEPROM 2-Wire Bus Interface

Ordering Information
NM 24 C XX U F LZ E XX Letter Description

Package N 8-pin DIP

M8 8-pin SOIC
MT8 8-pin TSSOP

Temp. Range None 0 to 70°C

V -40 to +125°C
E -40 to +85°C

Voltage Operating Range Blank 4.5V to 5.5V

L 2.7V to 5.5V
LZ 2.7V to 5.5V and

<1µA Standby Current

SCL Clock Frequency Blank 100KHz

F 400KHz

Ultralite CS100UL Process

Density 02 2K

03 2K with Write Protect

C CMOS Technology
W Total Array Write Protect

Interface 24 IIC

NM Fairchild Non-Volatile

Memory

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NM24C02U/NM24C03U Rev. B.1

NM24C02U/NM24C03U – 2K-Bit Serial EEPROM 2-Wire Bus Interface

Product Specifications
Absolute Maximum Ratings

Ambient Storage Temperature –65°C to +150°C
All Input or Output Voltages

with Respect to Ground 6.5V to –0.3V

Lead Temperature

(Soldering, 10 seconds) +300°C

ESD Rating 2000V min.

Operating Conditions

Ambient Operating Temperature

NM24C02U/03U 0°C to +70°C
NM24C02UE/03UE -40°C to +85°C
NM24C02UV/03UV -40°C to +125°C

Positive Power Supply

NM24C02U/03U 4.5V to 5.5V
NM24C02UL/03UL 2.7V to 5.5V
NM24C02ULZ/03ULZ 2.7V to 5.5V

Standard VCC (4.5V to 5.5V) DC Electrical Characteristics

Symbol Parameter Test Conditions Limits Units

Min Typ Max

(Note 1)

I

CCA

Active Power Supply Current f

SCL

= 400 KHz 0.2 1.0 mA

f

SCL

= 100 KHz

I

SB

Standby Current VIN = GND or V

CC

10 50 µA

I

LI

Input Leakage Current VIN = GND to V

CC

0.1 1 µA

I

LO

Output Leakage Current V

OUT

= GND to V

CC

0.1 1 µA

V

IL

Input Low Voltage –0.3 VCC x 0.3 V

V

IH

Input High Voltage VCC x 0.7 VCC + 0.5 V

V

OL

Output Low Voltage I

OL

= 3 mA 0.4 V

Low VCC (2.7V to 5.5V) DC Electrical Characteristics

Symbol Parameter Test Conditions Limits Units

Min Typ Max

(Note 1)

I

CCA

Active Power Supply Current f

SCL

= 400 KHz 0.2 1.0 mA

f

SCL

= 100 KHz

I

SB

Standby Current VIN = GND VCC = 2.7V - 4.5V 1 10 µA

or V

CC

VCC = 2.7V - 4.5V 0.1 1 µA
VCC = 4.5V - 5.5V 10 50 µA

I

LI

Input Leakage Current VIN = GND to V

CC

0.1 1 µA

I

LO

Output Leakage Current V

OUT

= GND to V

CC

0.1 1 µA

V

IL

Input Low Voltage –0.3 V

CC

x 0.3 V

V

IH

Input High Voltage VCC x 0.7 VCC + 0.5 V

V

OL

Output Low Voltage IOL = 3 mA 0.4 V

Capacitance T

A

= +25°C, f = 100/400 KHz, VCC = 5V (Note 2)

Symbol Test Conditions Max Units

C

I/O

Input/Output Capacitance (SDA) V

I/O

= 0V 8 pF

C

IN

Input Capacitance (A0, A1, A2, SCL) VIN = 0V 6 pF

Note 1: Typical values are TA = 25°C and nominal supply voltage (5V).
Note 2: This parameter is periodically sampled and not 100% tested.