Document
NM24C02/03 – 2K-Bit Standard 2-Wire Bus Interface Serial EEPROM
February 2000
NM24C02/03 – 2K-Bit Standard 2-Wire Bus Interface Serial EEPROM
General Description
The NM24C02/03 devices are 2048 bits of CMOS non-volatile electrically erasable memory. These devices conform to all specifications in the Standard IIC 2-wire protocol and are designed to minimize device pin count, and simplify PC board layout requirements. The upper half (upper 1Kbit) of the memory of the NM24C03 can be write protected by connecting the WP pin to VCC. This section of memory then becomes unalterable unless WP is switched to VSS. This communications protocol uses CLOCK (SCL) and DATA I/O (SDA) lines to synchronously clock data between the master (for example a microprocessor) and the slave EEPROM device(s). The Standard IIC protocol allows for a maximum of 16K of EEPROM memory which is supported by the Fairchild family in 2K, 4K, 8K, and 16K devices, allowing the user to configure the memory as the application requires with any combination of EEPROMs. In order to implement higher EEPROM memory densities on the IIC bus, the Extended IIC protocol must be used. (Refer to the NM24C32 or NM24C65 datasheets for more information.) Fairchild EEPROMs are designed and tested for applications requiring high endurance, high reliability and low power consumption.
Features
I Extended operating voltage 2.7V – 5.5V I 400 KHz clock frequency (F) at 2.7V - 5.5V I 200µA active current typical 10µA standby current typical 1µA standby current typical (L) 0.1µA standby current typical (LZ) I IIC compatible interface – Provides bi-directional data transfer protocol I Schmitt trigger inputs I Sixteen byte page write mode – Minimizes total write time per byte I Self timed write cycle Typical write cycle time of 6ms I Hardware Write Protect for upper half (NM24C03 only) I Endurance: 1,000,000 data changes I Data retention greater than 40 years I Packages available: 8-pin DIP, 8-pin SO, and 8-pin TSSOP I Available in three temperature ranges - Commercial: 0° to +70°C - Extended (E): -40° to +85C - Automotive (V): -40° to +125°C
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Block Diagram
VCC VSS WP H.V. GENERATION TIMING &CONTROL START STOP LOGIC CONTROL LOGIC SLAVE ADDRESS REGISTER & COMPARATOR E2PROM ARRAY
SDA
SCL
XDEC
A2 A1 A0
WORD ADDRESS COUNTER
R/W
YDEC
CK DIN DATA REGISTER DOUT
DS500069-1
© 1998 Fairchild Semiconductor Corporation NM24C02/03 Rev. G
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NM24C02/03 – 2K-Bit Standard 2-Wire Bus Interface Serial EEPROM
Connection Diagrams
Dual-in-Line Package (N), SO Package (M8) and TSSOP Package (MT8)
A0 A1 A2 VSS 1 2 NM24C02 3 4 6 5 SCL SDA
DS500069-2
8 7
VCC NC
See Package Number N08E, M08A and MTC08
Pin Names
A0,A1,A2 VSS SDA SCL NC VCC Device Address Inputs Ground Serial Data I/O Serial Clock Input No Connection Power Supply
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Dual-in-Line Package (N), SO Package (M8) and TSSOP Package (MT8)
A0 A1 A2 VSS 1 2 NM24C03 3 4 6 5 SCL SDA
DS500069-3
8 7
VCC WP
See Package Number N08E, M08A and MTC08
Pin Names
A0,A1,A2 VSS SDA SCL WP VCC Device Address Inputs Ground Serial Data I/O Serial Clock input Write Protect Power Supply
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NM24C02/03 Rev. G
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NM24C02/03 – 2K-Bit Standard 2-Wire Bus Interface Serial EEPROM
Ordering Information NM 24 C XX F LZ E XXX
Package
Letter
N M8 MT8 None V E Blank L LZ
Description
8-pin DIP 8-pin SOIC 8-pin TSSOP 0 to 70°C -40 to +125°C -40 to +85°C 4.5V to 5.5V 2.7V to 5.5V 2.7V to 5.5V and <1µA Standby Current 100KHz 400KHz 2K 2K with Write Protect CMOS Technology IIC Fairchild Non-Volatile Memory
Temp. Range
Voltage Operating Range
SCL Clock Frequency
Blank F 02 03 C
Density
Interface
24 NM
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NM24C02/03 Rev. G
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NM24C02/03 – 2K-Bit Standard 2-Wire Bus Interface Serial EEPROM
Product Specifications Absolute Maximum Ratings
Ambient Storage Temperature All Input or Output Voltages with Respect to Ground Lead Temperature (Soldering, 10 seconds) ESD Rating –65°C to +150°C 6.5V to –0.3V +300°C 2000V min.
Operating Conditions
Ambient Operating Temperature NM24C02/03 NM24C02E/03E NM24C02V/03V Positive Power Supply NM24C02/03 NM24C02L/03L NM24C02LZ/03LZ 0°C to +70°C -40°C to +85°C -40°C to +125°C 4.5V to 5.5V 2.7V to 5.5V 2.7V to 5.5V
DC Electrical Characteristics (2.7V to 5.5V)
Symbol Parameter Test Conditions Min
ICCA ISB Active Power Supply Current Standby Current fSCL = 400 KHz fSCL = 100 KHz VIN = GND or VCC VCC = 2.7V - 5.5V VCC = 2.7V - 5.5V (L) VCC = 2.7V - 4.5V (LZ)
Limits Typ (Note 1)
0.2 10 1 0.1 0.1 0.1
Units Max
1.0 50 10 1 1 1 VCC x 0.3 VCC + 0.5 0.4 mA µA µA µA µA µA V V V
ILI ILO VIL VIH VOL
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Input Leakage Current Output Leakage Current Input Low Voltage Input High Voltage Output Low Voltage
VIN = GND to VCC VOUT = GND to VCC –0.3 VCC x 0.7 IOL = 3 mA
Capacitance TA = +25°C, f = 100/400 KHz, VCC = 5V (Note 2)
Symbol
CI/O CIN
Test
Input/Output Capacitance (SDA) Input Capacitance.