Fairchild Semiconductor NM24C03ULM8X, NM24C03ULN, NM24C03UN, NM24C03UMT8, NM24C03UVM8 Datasheet
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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.
August 1999
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 200 A active current (ICCA)
■Typical 1 A standby current (ISB) for "L" devices and 0.1 A standby current for "LZ" devices
■Endurance: Up to 1,000,000 data changes
■Data retention greater than 40 years
Block Diagram
VCC |
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VSS |
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WP |
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H.V. GENERATION |
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TIMING &CONTROL |
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SDA |
START |
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STOP |
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LOGIC |
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CONTROL |
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LOGIC |
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SLAVE ADDRESS |
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E2PROM |
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REGISTER & |
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SCL |
COMPARATOR |
XDEC |
ARRAY |
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A2 |
WORD |
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A1 |
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ADDRESS |
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A0 |
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COUNTER |
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R/W |
YDEC |
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CK |
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DOUT |
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DIN |
DATA REGISTER |
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DS800007-1
I2C™ is a registered trademark of Philips Electronics N.V.
© 1998 Fairchild Semiconductor Corporation |
1 |
www.fairchildsemi.com |
NM24C02U/NM24C03U Rev. B.1 |
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faceInter Bus Wire-2 EEPROM Serial Bit-2K – NM24C02U/NM24C03U
Connection Diagrams
Dual-in-Line Package (N), SO Package (M8), and TSSOP Package (MT8)
A0 |
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1 |
8 |
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VCC |
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A1 |
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2 |
7 |
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NC |
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A2 |
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3 |
NM24C02U 6 |
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SCL |
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VSS |
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4 |
5 |
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SDA |
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DS800007-2
Top View
See Package Number N08E, M08A, and MTC08
Pin Names
A0,A1,A2 |
Device Address Inputs |
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VSS |
Ground |
SDA |
Serial Data I/O |
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SCL |
Serial Clock Input |
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NC |
No Connection |
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VCC |
Power Supply |
Dual-in-Line Package (N), SO Package (M8), and TSSOP Package (MT8)
A0 |
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1 |
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8 |
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VCC |
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A1 |
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2 |
NM24C03U |
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WP |
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A2 |
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3 |
6 |
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SCL |
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VSS |
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5 |
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SDA |
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DS800007-3
Top View
See Package Number N08E, M08A, and MTC08
Pin Names
A0,A1,A2 |
Device Address Inputs |
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VSS |
Ground |
SDA |
Serial Data I/O |
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SCL |
Serial Clock input |
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WP |
Write Protect |
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VCC |
Power Supply |
2 |
www.fairchildsemi.com |
NM24C02U/NM24C03U Rev. B.1
faceInter Bus Wire-2 EEPROM Serial Bit-2K – NM24C02U/NM24C03U
Ordering Information |
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NM 24 |
C |
XX U F |
LZ E |
XX |
Letter |
Description |
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Package |
N |
8-pin DIP |
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M8 |
8-pin SOIC |
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MT8 |
8-pin TSSOP |
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Temp. Range |
None |
0 to 70°C |
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V |
-40 to +125°C |
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E |
-40 to +85°C |
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Voltage Operating Range |
Blank |
4.5V to 5.5V |
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L |
2.7V to 5.5V |
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LZ |
2.7V to 5.5V and |
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<1 A Standby Current |
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SCL Clock Frequency |
Blank |
100KHz |
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F |
400KHz |
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Ultralite |
CS100UL Process |
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Density |
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02 |
2K |
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03 |
2K with Write Protect |
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C |
CMOS Technology |
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W |
Total Array Write Protect |
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Interface |
24 |
IIC |
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NM |
Fairchild Non-Volatile |
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Memory |
faceInter Bus Wire-2 EEPROM Serial Bit-2K – NM24C02U/NM24C03U
3 |
www.fairchildsemi.com |
NM24C02U/NM24C03U Rev. B.1
Product Specifications
Absolute Maximum Ratings
Ambient Storage Temperature |
–65°C to +150°C |
All Input or Output Voltages |
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with Respect to Ground |
6.5V to –0.3V |
Lead Temperature |
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(Soldering, 10 seconds) |
+300°C |
ESD Rating |
2000V min. |
Operating Conditions
Ambient Operating Temperature |
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NM24C02U/03U |
0°C to +70°C |
NM24C02UE/03UE |
-40°C to +85°C |
NM24C02UV/03UV |
-40°C to +125°C |
Positive Power Supply |
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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 |
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Limits |
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Units |
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Min |
Typ |
Max |
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(Note 1) |
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ICCA |
Active Power Supply Current |
fSCL = 400 KHz |
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0.2 |
1.0 |
mA |
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fSCL = 100 KHz |
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ISB |
Standby Current |
VIN = GND or VCC |
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10 |
50 |
A |
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ILI |
Input Leakage Current |
VIN = GND to VCC |
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0.1 |
1 |
A |
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ILO |
Output Leakage Current |
VOUT = GND to VCC |
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0.1 |
1 |
A |
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VIL |
Input Low Voltage |
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–0.3 |
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VCC x 0.3 |
V |
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VIH |
Input High Voltage |
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VCC x 0.7 |
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VCC + 0.5 |
V |
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VOL |
Output Low Voltage |
IOL = 3 mA |
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0.4 |
V |
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Low VCC (2.7V to 5.5V) DC Electrical Characteristics
Symbol |
Parameter |
Test Conditions |
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Limits |
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Units |
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Min |
Typ |
Max |
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(Note 1) |
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ICCA |
Active Power Supply Current |
fSCL = 400 KHz |
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0.2 |
1.0 |
mA |
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fSCL = 100 KHz |
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ISB |
Standby Current |
VIN = GND |
VCC = 2.7V - 4.5V |
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1 |
10 |
A |
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or VCC |
VCC = 2.7V - 4.5V |
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0.1 |
1 |
A |
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VCC = 4.5V - 5.5V |
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10 |
50 |
A |
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ILI |
Input Leakage Current |
VIN = GND to VCC |
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0.1 |
1 |
A |
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ILO |
Output Leakage Current |
VOUT = GND to VCC |
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0.1 |
1 |
A |
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VIL |
Input Low Voltage |
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–0.3 |
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VCC x 0.3 |
V |
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VIH |
Input High Voltage |
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VCC x 0.7 |
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VCC + 0.5 |
V |
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VOL |
Output Low Voltage |
IOL = 3 mA |
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0.4 |
V |
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Capacitance TA = +25°C, f = 100/400 KHz, VCC = 5V (Note 2)
Symbol |
Test |
Conditions |
Max |
Units |
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CI/O |
Input/Output Capacitance (SDA) |
VI/O = 0V |
8 |
pF |
CIN |
Input Capacitance (A0, A1, A2, SCL) |
VIN = 0V |
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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.
4 |
www.fairchildsemi.com |
NM24C02U/NM24C03U Rev. B.1
faceInter Bus Wire-2 EEPROM Serial Bit-2K – NM24C02U/NM24C03U
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