Datasheet NM24C16U, NM24C17U Datasheet (Fairchild)

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NM24C16U/NM24C17U 16K-Bit Serial EEPROM 2-Wire Bus Interface

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

August 1999

General Description

The NM24C16U/17U devices are 16K (16,384) 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.

NM24C17U 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

SDA

START

STOP

LOGIC

Functions

■ I2C™ compatible interface

■ 4,096 bits organized as 512 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

■ NM24C17U: 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

■ 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

CCA

)

SCL

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

SLAVE ADDRESS

COMPARATOR

R/W

CONTROL

LOGIC

WORD ADDRESS COUNTER

XDEC

E2PROM

ARRAY

YDEC

DATA REGISTER

OUT

DS800010-1

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Page 2

Connection Diagrams

Dual-In-Line Package (N),

8-Pin SO Package (M8)

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

8-Pin TSSOP Package (MT8)

Rotated Die (24C16UT)

NC NC NC

Pin Names

SDA Serial Data I/O SCL Serial Clock Input

NC No Connection V

Dual-In-Line Package (N),

NC NC NC

1 2

NM24C16U

3 4

8 7 6 5

DS800010-2

See Package Number N08E,

Ground

Power Supply

8-Pin SO Package (M8)

1 2

NM24C17U

3 4

8 7 6 5

DS800010-4

See Package Number N08E,

NC SCL SDA

WP SCL SDA

Top View

CC NC

1 2

NM24C16UT

3 4

M08A and MTC08

8-Pin TSSOP Package (MT8)

Rotated Die (24C17UT)

CC NC

1 2

NM24C17UT

3 4

M08A and MTC08

8 7 6 5

DS800010-3

8 7 6 5

DS800010-5

SCL SDA V

Pin Names

SDA Serial Data I/O SCL Serial Clock input

WP Write Protect V

NC No Connection

NM24C16U/17U Rev. B.1

Ground

Power Supply

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Page 3

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

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

Package N 8-pin DIP

Temp. Range None 0 to 70°C

Voltage Operating Range Blank 4.5V to 5.5V

SCL Clock Frequency Blank 100KHz

Density 16 16K

M8 8-pin SOIC MT8 8-pin TSSOP

V -40 to +125°C E -40 to +85°C

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

<1µA Standby Current

Blank Normal Pin Out T Rotated Die Pin Out

F 400KHz

Ultralite CS100UL Process

17 16K with Write Protect

C CMOS Technology W Total Array Write Protect

Interface 24 IIC

NM Fairchild Non-Volatile

Memory

NM24C16U/17U Rev. B.1

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Page 4

Product Specifications

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

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

NM24C16U/17U 0°C to +70°C NM24C16UE/17UE -40°C to +85°C NM24C16UV/17UV -40°C to +125°C

Positive Power Supply

NM24C16U/17U 4.5V to 5.5V NM24C16UL/17UL 2.7V to 5.5V NM24C16ULZ/17ULZ 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)

CCA

Active Power Supply Current f

Standby Current VIN = GND or V Input Leakage Current VIN = GND to V Output Leakage Current V

= 400 KHz 0.2 1.0 mA

SCL

= 100 KHz

SCL

10 50 µA

0.1 1 µA

= GND to V

OUT

Input Low Voltage –0.3 VCC x 0.3 V Input High Voltage VCC x 0.7 VCC + 0.5 V Output Low Voltage I

= 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)

CCA

Capacitance T

Active Power Supply Current f

= 400 KHz 0.2 1.0 mA

SCL

= 100 KHz

SCL

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

or V

VCC = 2.7V - 4.5V 0.1 1 µA

VCC = 4.5V - 5.5V 10 50 µA Input Leakage Current VIN = GND to V Output Leakage Current V

= GND to V

OUT

Input Low Voltage –0.3 V

0.1 1 µA

0.1 1 µA x 0.3 V

Input High Voltage VCC x 0.7 VCC + 0.5 V Output Low Voltage IOL = 3 mA 0.4 V

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

Symbol Test Conditions Max Units

I/O

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

Input/Output Capacitance (SDA) V

= 0V 8 pF

I/O

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

NM24C16U/17U Rev. B.1

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AC Conditions of Test

Input Pulse Levels VCC x 0.1 to VCC x 0.9 Input Rise and Fall Times 10 ns Input & Output Timing Levels VCC x 0.5 Output Load 1 TTL Gate and CL = 100 pF

Read and Write Cycle Limits (Standard and Low VCC Range 2.7V - 5.5V)

Symbol Parameter 100 KHz 400 KHz Units

Min Max Min Max

SCL

BUF

HD:STA

LOW

HIGH

SU:STA

HD:DAT

SU:DAT

SU:STO

(Note 3) - NM24C16U/17UL, NM24C16U/17ULZ 15 15

SCL Clock Frequency 100 400 KHz Noise Suppression Time Constant at

SCL, SDA Inputs (Minimum V

100 50 ns

Pulse width) SCL Low to SDA Data Out Valid 0.3 3.5 0.1 0.9 µs Time the Bus Must Be Free before 4.7 1.3 µs

a New Transmission Can Start Start Condition Hold Time 4.0 0.6 µs Clock Low Period 4.7 1.5 µs Clock High Period 4.0 0.6 µs Start Condition Setup Time 4.7 0.6 µs

(for a Repeated Start Condition) Data in Hold Time 0 0 µs Data in Setup Time 250 100 ns SDA and SCL Rise Time 1 0.3 µs SDA and SCL Fall Time 300 300 ns Stop Condition Setup Time 4.7 0.6 µs Data Out Hold Time 300 50 ns Write Cycle Time - NM24C16U/17U 10 10 ms

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

Note 3: The write cycle time (tWR) is the time from a valid stop condition of a write sequence to the end of the internal erase/program cycle. During the write cycle, the

NM24C16U/17U bus interface circuits are disabled, SDA is allowed to remain high per the bus-level pull-up resistor, and the device does not respond to its slave address.

NM24C16U/17U Rev. B.1

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Bus Timing

SCL

SDA

OUT

SU:STA

System Layout

Typical System Configuration

SDA

SCL

HD:STA

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

LOW

SU:DAT

SU:STO

BUF

DS800010-8

LOW

HIGH

HD:DAT

Master

Transmitter/

Receiver

Note: Due to open drain configuration of SDA, a bus-level pull-up resistor is called for, (typical value = 4.7kΩ)

Slave

Receiver

Slave

Transmitter/

Receiver

Master

Transmitter

Master

Transmitter/

Receiver

Example of 16K of Memory on 2-Wire Bus

Device Address Pins Memory Size # of Page

A0 A1 A2 Blocks

NM24C16U/17U No Connect No Connect No Connect 16,384 Bits 8

DS800010-20

NM24C16U/17U Rev. B.1

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NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

Device Operation

Background Information (IIC Bus)

As mentioned, the IIC bus allows synchronous bidirectional communication between Transmitter/Receiver using the SCL (clock) and SDA (Data I/O) lines. All communication must be started with a valid START condition, concluded with a STOP condition and acknowledged by the Receiver with an ACKNOWLEDGE condition.

As shown below, the EEPROMs on the IIC bus may be configured in any manner required, the total memory addressed can not exceed 16K (16,384 bits). EEPROM memory address programming is controlled by 2 methods:

• All unused pins must be grounded (tied to VSS).

• Software addressing the required PAGE BLOCK within the

device memory array (as sent in the Slave Address string).

For devices with densities greater than 16K, a different protocol, the Extended IIC protocol, is used. Refer to NM24C32U datasheet (for example) for additional details.

Addressing an EEPROM memory location involves sending a command string with the following information: [DEVICE TYPE]–[DEVICE ADDRESS]–[PAGE BLOCK ADDRESS]–[BYTE ADDRESS]

DEFINITIONS

WORD 8 bits (byte) of data PAGE 16 sequential addresses (one byte

each) that may be programmed during a 'Page Write' programming cycle

PAGE BLOCK 2048 (2K) bits organized into 16

pages of addressable memory. (8 bits) x (16 pages) = 2048 bits

MASTER Any IIC device CONTROLLING the

transfer of data (such as a microprocessor)

SLAVE Device being controlled

(EEPROMs are always considered Slaves)

TRANSMITTER Device currently SENDING data on

the bus (may be either a Master or Slave).

RECEIVER Device currently RECEIVING data

on the bus (Master or Slave)

Pin Descriptions

Serial Clock (SCL)

The SCL input is used to clock all data into and out of the device.

Serial Data (SDA)

SDA is a bidirectional pin used to transfer data into and out of the device. It is an open drain output and may be wire–ORed with any number of open drain or open collector outputs.

WP Write Protection (NM24C17U Only)

If tied to VCC, PROGRAM operations onto the upper half of the memory will not be executed. READ operations are possible. If tied to V entire memory is possible.

This feature allows the user to assign the upper half of the memory as ROM which can be protected against accidental programming. When write is disabled, slave address and word address will be acknowledged but data will not be acknowledged.

, normal operation is enabled, READ/WRITE over the

Device Operation

The NM24C16U/17U supports a bidirectional bus oriented protocol. The protocol defines any device that sends data onto the bus as a transmitter and the receiving device as the receiver. The device controlling the transfer is the master and the device that is controlled is the slave. The master will always initiate data transfers and provide the clock for both transmit and receive operations. Therefore, the NM24C16U/17U will be considered a slave in all applications.

Clock and Data Conventions

Data states on the SDA line can change only during SCL LOW. SDA state changes during SCL HIGH are reserved for indicating start and stop conditions. Refer to page.

Start Condition

All commands are preceded by the start condition, which is a HIGH to LOW transition of SDA when SCL is HIGH. The NM24C16U/17U continuously monitors the SDA and SCL lines for the start condition and will not respond to any command until this condition has been met.

Stop Condition

All communications are terminated by a stop condition, which is a LOW to HIGH transition of SDA when SCL is HIGH. The stop condition is also used by the NM24C16U/17U to place the device in the standby power mode.

Figure 2

and

Figure 3

on next

NM24C16U/17U Rev. B.1

Write Cycle Timing

Acknowledge

Acknowledge is a hardware convention used to indicate successful data transfers. The transmitting device, either master or slave, will release the bus after transmitting eight bits.

During the ninth clock cycle the receiver will pull the SDA line to LOW to acknowledge that it received the eight bits of data. Refer to

Figure 4.

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Write Cycle Timing (Figure 1)

SCL

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

SDA

Note: The write cycle time (tWR) is the time from a valid stop condition of a write sequence to the end of the internal erase/program cycle.

8th BIT ACK

WORD n

STOP

CONDITION

START

CONDITION

Data Validity (Figure 2)

SCL

SDA

DATA STABLE DATA

CHANGE

Start and Stop Definition (Figure 3)

SCL

SDA

DS800010-10

DS800010-11

START

CONDITION

Acknowledge Response from Receiver (Figure 4)

SCL FROM

MASTER

189

DATA OUTPUT

FROM

TRANSMITTER

DATA OUTPUT

FROM

RECEIVER

START

STOP

CONDITION

ACKNOWLEDGE

DS800010-12

DS800010-13

NM24C16U/17U Rev. B.1

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Page 9

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

Write Cycle Timing (Continued)

The NM24C16U/17U device will always respond with an acknowledge after recognition of a start condition and its slave address. If both the device and a write operation have been selected, the NM24C16U/17U will respond with an acknowledge after the receipt of each subsequent eight bit byte.

In the read mode the NM24C16U/17U slave will transmit eight bits of data, release the SDA line and monitor the line for an acknowledge. If an acknowledge is detected and no stop condition is generated by the master, the slave will continue to transmit data. If an acknowledge is not detected, the slave will terminate further data transmissions and await the stop condition to return to the standby power mode.

Device Addressing

Following a start condition the master must output the address of the slave it is accessing. The most significant four bits of the slave address are those of the device type identifier ( is fixed as 1010 for all EEPROM devices.

Slave Addresses (Figure 5)

Device Type

Identifier

1 0 1 0 A2 A1 A0 R/W (LSB)

NM24C16U/17U

Page

Block Address

see Figure 5)

DS800010-14

. This

Refer to the following table for Slave Addresses string details:

Device A0 A1 A2 Page Page Block

Blocks Addresses

NM24C16U/17U P P P 8 000 001 010 011 ... 111

P: Refers to an internal PAGE BLOCK memory segment.

All IIC EEPROMs use an internal protocol that defines a PAGE BLOCK size of 2K bits (for Word addressess 0000 through 1111). Therefore, address bits A0, A1, or A2 (if designated 'P') are used to access a PAGE BLOCK in conjunction with the Word address used to access any individual data byte (Word).

The last bit of the slave address defines whether a write or read condition is requested by the master. A '1' indicates that a read operation is to be executed, and a '0' initiates the write mode.

A simple review: After the NM24C16U/17U recognizes the start condition, the devices interfaced to the IIC bus wait for a slave address to be transmitted over the SDA line. If the transmitted slave address matches an address of one of the devices, the designated slave pulls the line LOW with an acknowledge signal and awaits further transmissions.

NM24C16U/17U Rev. B.1

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Page 10

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

Write Operations

BYTE WRITE

For a write operation a second address field is required which is a word address that is comprised of eight bits and provides access to any one of the 256 bytes in the selected page of memory. Upon receipt of the byte address the NM24C16U/17U responds with an acknowledge and waits for the next eight bits of data, again, responding with an acknowledge. The master then terminates the transfer by generating a stop condition, at which time the NM24C16U/17U begins the internal write cycle to the nonvolatile memory. While the internal write cycle is in progress the NM24C16U/17U inputs are disabled, and the device will not respond to any requests from the master. Refer to address, acknowledge and data transfer sequence.

PAGE WRITE

The NM24C16U/17U is capable of a sixteen byte page write operation. It is initiated in the same manner as the byte write operation; but instead of terminating the write cycle after the first data byte is transferred, the master can transmit up to fifteen more bytes. After the receipt of each byte, the NM24C16U/17U will respond with an acknowledge.

After the receipt of each byte, the internal address counter increments to the next address and the next SDA data is accepted. If the master should transmit more than sixteen bytes prior to generating the stop condition, the address counter will "roll over" and the previously written data will be overwritten. As with the byte write operation, all inputs are disabled until completion of the internal write cycle. Refer to edge, and data transfer sequence.

Figure 7

for the address, acknowl-

Figure 6

for the

Acknowledge Polling

Once the stop condition is issued to indicate the end of the host’s write operation the NM24C16U/17U initiates the internal write cycle. ACK polling can be initiated immediately. This involves issuing the start condition followed by the slave address for a write operation. If the NM24C16U/17U is still busy with the write operation no ACK will be returned. If the NM24C16U/17U has completed the write operation an ACK will be returned and the host can then proceed with the next read or write operation.

Write Protection (NM24C17U Only)

Programming of the upper half of the memory will not take place if the WP pin of the NM24C17U is connected to V NM24C17U will accept slave and byte addresses; but if the memory accessed is write protected by the WP pin, the NM24C17U will not generate an acknowledge after the first byte of data has been received, and thus the program cycle will not be started when the stop condition is asserted.

. The

Byte Write (Figure 6)

Bus Activity: Master

SDA Line

Bus Activity: NM24C16U/17U

Page Write (Figure 7)

S T

Bus Activity:

Master

SDA Line

Bus Activity:

NM24C16U/17U

A R T

SLAVE

ADDRESS

S T A R T

SLAVE

ADDRESS

A C K

ADDRESS

A C K

WORD

S T

DATA

A C K

DATA n + 1DATA nWORD ADDRESS (n)

A C K

DS800010-15

A C K

DATA n + 15

A C K

DS800010-16

S T O P

NM24C16U/17U Rev. B.1

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Page 11

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

Read Operations

Read operations are initiated in the same manner as write operations, with the exception that the R/W bit of the slave address is set to a one. There are three basic read operations: current address read, random read, and sequential read.

Current Address Read

Internally the NM24C16U/17U contains an address counter that maintains the address of the last byte accessed, incremented by one. Therefore, if the last access (either a read or write) was to address n, the next read operation would access data from address n + 1. Upon receipt of the slave address with R/W set to one, the NM24C16U/17U issues an acknowledge and transmits the eight bit byte. The master will not acknowledge the transfer but does generate a stop condition, and therefore the NM24C16U/ 17U discontinues transmission. Refer to quence of address, acknowledge and data transfer.

Random Read

Random read operations allow the master to access any memory location in a random manner. Prior to issuing the slave address with the R/W bit set to one, the master must first perform a “dummy” write operation. The master issues the start condition, slave address and then the byte address it is to read. After the byte address acknowledge, the master immediately reissues the

Current Address Read (Figure 8)

Bus Activity: Master

SDA Line

Bus Activity: NM24C16U/17U

Random Read (Figure 9)

Bus Activity: Master

S T A R T

ADDRESS

SLAVE

Figure 8

S T A R T

for the se-

SLAVE

ADDRESS

WORD

ADDRESS

start condition and the slave address with the R/W bit set to one. This will be followed by an acknowledge from the NM24C16U/17U and then by the eight bit data. The master will not acknowledge the transfer but does generate the stop condition, and therefore the NM24C16U/17U discontinues transmission. Refer to

Figure 9

the address, acknowledge and data transfer sequence.

Sequential Read

Sequential reads can be initiated as either a current address read or random access read. The first word is transmitted in the same manner as the other read modes; however, the master now responds with an acknowledge, indicating it requires additional data. The NM24C16U/17U continues to output data for each acknowledge received. The read operation is terminated by the master not responding with an acknowledge or by generating a stop condition.

The data output is sequential, with the data from address n followed by the data from n + 1. The address counter for read operations increments all word address bits, allowing the entire memory contents to be serially read during one operation. After the entire memory has been read, the counter "rolls over" and the NM24C16U/17U continues to output data for each acknowledge received. Refer to data transfer sequence.

A C K

DATA

S T A R T

SLAVE

ADDRESS

Figure 10

S T O P

A C K

for the address, acknowledge, and

DS800010-17

T O P

for

SDA Line

Bus Activity: NM24C16U/17U

Sequential Read (Figure 10)

Bus Activity:

Master

SDA Line

Bus Activity:

NM24C16U/17U

NM24C16U/17U Rev. B.1

Slave

Address

A C K

DATA n + 2DATA n +1DATA n +1

DATA n

C K

A C K

DATA n + x

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DS800010-18

S T O P

A C K

DS800010-19

Page 12

Physical Dimensions inches (millimeters) unless otherwise noted

0.189 - 0.197

(4.800 - 5.004)

8765

0.228 - 0.244

(5.791 - 6.198)

1234

Lead #1

IDENT

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

0.010 - 0.020

(0.254 - 0.508)

0.0075 - 0.0098 (0.190 - 0.249)

Typ. All Leads

0.246 - 0.256 (6.25 - 6.5)

0.123 - 0.128 (3.13 - 3.30)

0.150 - 0.157

(3.810 - 3.988)

x 45°

0.04

(0.102)

All lead tips

8-Pin Molded Small Outline Package (M8)

0.114 - 0.122 (2.90 - 3.10)

Pin #1 IDENT

0.053 - 0.069

8° Max, Typ.

All leads

0.016 - 0.050 (0.406 - 1.270) Typ. All Leads

(1.346 - 1.753)

Package Number M08A

0.169 - 0.177 (4.30 - 4.50)

0.004 - 0.010

(0.102 - 0.254)

0.014

(0.356)

(1.78) Typ

(0.42) Typ

0.050

(1.270)

Typ

(0.65) Typ

(4.16) Typ

0.014 - 0.020

(0.356 - 0.508)

(7.72) Typ

Land pattern recommendation

Seating

Plane

Typ.

NM24C16U/17U Rev. B.1

0.0433

Max

(1.1)

See detail A

0°-8°

0.0256 (0.65) Typ.

0.002 - 0.006 (0.05 - 0.15)

0.0075 - 0.0098 (0.19 - 0.30)

DETAIL A

Typ. Scale: 40X

0.020 - 0.028 (0.50 - 0.70)

Notes: Unless otherwise specified

1. Reference JEDEC registration MO153. Variation AA. Dated 7/93

8-Pin Molded Thin Shrink Small Outline Package

Package Number MTC08

Seating

plane

0.0035 - 0.0079

Gage plane

0.0075 - 0.0098 (0.19 - 0.25)

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Page 13

Physical Dimensions inches (millimeters) unless otherwise noted

0.373 - 0.400

(9.474 - 10.16)

0.090

(2.286)

0.040

(1.016)

20° ± 1°

0.065

(1.651)

0.050

(1.270)

8765

1234

Typ.

90° ± 4°

0.100 ± 0.010

(2.540 ± 0.254)

0.250 - 0.005

(6.35 ± 0.127)

0.039

(0.991)

0.130 ± 0.005

(3.302 ± 0.127)

0.125 - 0.140

(3.175 - 3.556)

Typ

0.018 ± 0.003

(0.457 ± 0.076)

0.060

(1.524)

95° ± 5°

0.009 - 0.015

(0.229 - 0.381)

0.280

MIN

(7.112)

0.300 - 0.320 (7.62 - 8.128)

+0.040

0.325

-0.015

+1.016

8.255

-0.381

0.092

DIA

(2.337)

Pin #1 IDENT

0.030

(0.762)

0.125

(3.175)

DIA

NOM

0.045 ± 0.015

(1.143 ± 0.381)

Option 1

MAX

0.032 ± 0.005

(0.813 ± 0.127)

RAD

Pin #1

IDENT

0.020

(0.508)

Min

NM24C16U/NM24C17U – 16K-Bit Serial EEPROM 2-Wire Bus Interface

Option 2

0.145 - 0.200

(3.683 - 5.080)

Molded Dual-In-Line Package (N)

Package Number N08E

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2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness.

Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.

NM24C16U/17U Rev. B.1

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