NM24C08U/NM24C09U – 8K-BitŁ Serial EEPROM 2-Wire Bus Interface
Connection Diagrams
Dual-In-Line Package (N), SO Package (M8), and TSSOP Package (MT8)
NC
NC
A2
VSS
1
2
3
4
8
7
VCC
NC
SCL
SDA
DS800009-2
NM24C08U
6
5
Top View
See Package Number N08E, M08A, and MTC08
Pin Names
A2
V
SS
SDA
SCL
NC
V
CC
Device Address Input
Ground
Serial Data I/O
Serial Clock Input
No Connection
Power Supply
Dual-In-Line Package (N), SO Package (M8), and TSSOP Package (MT8)
NC
NC
A2
VSS
1
2
3
4
8
7
VCC
WP
SCL
SDA
DS800009-5
NM24C09U
6
5
Top View
See Package Number N08E, M08A, and MTC08
Pin Names
NC
A2
V
SS
SDA
SCL
WP
V
CC
No Connection
Device Address Input
Ground
Serial Data I/O
Serial Clock input
Write Protect
Power Supply
2
NM24C08U/09U Rev. B.1
www.fairchildsemi.com
NM24C08U/NM24C09U – 8K-BitŁ Serial EEPROM 2-Wire Bus Interface
Ordering Information
NM
24
C
XX
U
F
LZ
E
XX
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
CS100UL Process
8K
8K with Write Protect
CMOS Technology
Total Array Write Protect
IIC
Fairchild Non-Volatile
Memory
Temp. Range
Voltage Operating Range
SCL Clock Frequency
Blank
F
Ultralite
Density
08
09
C
W
Interface
24
NM
3
NM24C08U/09U Rev. B.1
www.fairchildsemi.com
NM24C08U/NM24C09U – 8K-BitŁ Serial EEPROM 2-Wire Bus Interface
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
NM24C08U/09U
NM24C08UE/09UE
NM24C08UV/09UV
Positive Power Supply
NM24C08U/09U
NM24C08UL/09UL
NM24C08ULZ/09ULZ
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
Standard V
CC
(4.5V to 5.5V) DC Electrical Characteristics
Symbol
Parameter
Test Conditions
Min
I
CCA
I
SB
I
LI
I
LO
V
IL
V
IH
V
OL
Active Power Supply Current
Standby Current
Input Leakage Current
Output Leakage Current
Input Low Voltage
Input High Voltage
Output Low Voltage
I
OL
= 3 mA
f
SCL
= 400 KHz
f
SCL
= 100 KHz
V
IN
= GND or V
CC
V
IN
= GND to V
CC
V
OUT
= GND to V
CC
–0.3
V
CC
x 0.7
Limits
Typ
(Note 1)
0.2
10
0.1
0.1
Units
Max
1.0
50
1
1
V
CC
x 0.3
V
CC
+ 0.5
0.4
mA
µA
µA
µA
V
V
V
Low V
CC
(2.7V to 5.5V) DC Electrical Characteristics
Symbol
Parameter
Test Conditions
Min
I
CCA
I
SB
Active Power Supply Current f
SCL
= 400 KHz
f
SCL
= 100 KHz
Standby Current
V
IN
= GND
or V
CC
V
CC
= 2.7V - 4.5V
V
CC
= 2.7V - 4.5V
V
CC
= 4.5V - 5.5V
Limits
Typ
(Note 1)
0.2
1
0.1
10
0.1
0.1
Units
Max
1.0
10
1
50
1
1
V
CC
x 0.3
V
CC
+ 0.5
0.4
mA
µA
µA
µA
µA
µA
V
V
V
I
LI
I
LO
V
IL
V
IH
V
OL
Input Leakage Current
Output Leakage Current
Input Low Voltage
Input High Voltage
Output Low Voltage
V
IN
= GND to V
CC
V
OUT
= GND to V
CC
–0.3
V
CC
x 0.7
I
OL
= 3 mA
Capacitance
T
A
= +25°C, f = 100/400 KHz, V
CC
= 5V
(Note 2)
Symbol
C
I/O
C
IN
Test
Input/Output Capacitance (SDA)
Input Capacitance (A0, A1, A2, SCL)
Conditions
V
I/O
= 0V
V
IN
= 0V
Max
8
6
Units
pF
pF
Note 1:
Typical values are T
A
= 25°C and nominal supply voltage (5V).
Note 2:
This parameter is periodically sampled and not 100% tested.
4
NM24C08U/09U Rev. B.1
www.fairchildsemi.com
NM24C08U/NM24C09U – 8K-BitŁ Serial EEPROM 2-Wire Bus Interface
AC Conditions of Test
Input Pulse Levels
Input Rise and Fall Times
Input & Output Timing Levels
Output Load
V
CC
x 0.1 to V
CC
x 0.9
10 ns
V
CC
x 0.5
1 TTL Gate and C
L
= 100 pF
Read and Write Cycle Limits (Standard and Low V
CC
Range 2.7V - 5.5V)
Symbol
f
SCL
T
I
Parameter
SCL Clock Frequency
Noise Suppression Time Constant at
SCL, SDA Inputs (Minimum V
IN
Pulse width)
SCL Low to SDA Data Out Valid
Time the Bus Must Be Free before
a New Transmission Can Start
Start Condition Hold Time
Clock Low Period
Clock High Period
Start Condition Setup Time
(for a Repeated Start Condition)
Data in Hold Time
Data in Setup Time
SDA and SCL Rise Time
SDA and SCL Fall Time
Stop Condition Setup Time
Data Out Hold Time
Write Cycle Time - NM24C08U/09U
- NM24C08U/09UL, NM24C08U/09ULZ
100 KHz
Min
Max
100
100
0.3
4.7
4.0
4.7
4.0
4.7
0
250
1
300
4.7
300
10
15
3.5
400 KHz
Min
Max
400
50
0.1
1.3
0.6
1.5
0.6
0.6
0
100
0.3
300
0.6
50
10
15
0.9
Units
KHz
ns
µs
µs
µs
µs
µs
µs
µs
ns
µs
ns
µs
ns
ms
t
AA
t
BUF
t
HD:STA
t
LOW
t
HIGH
t
SU:STA
t
HD:DAT
t
SU:DAT
t
R
t
F
t
SU:STO
t
DH
t
WR
(Note 3)
Note 3:
The write cycle time (t
WR
) 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
NM24C08U/09U 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.
白光LED光衰原因之荧光粉性能的衰退 到目前，白光 LED、尤其是小功率白光 LED 的发光性能快速衰退已越来越为人们所认识。其实，盲目地夸大宣传，只能将 LED 行业引向歧途，不正视白光 LED 存在的问题，只能延缓白光 LED 应用的发展。只有正视问题、研究问题、尽早解决问题，白光 LED 才能健康、快速发展。 白光 LED 当前面临的一个主要问题就寿命问题。由于白光 LED 的价格尚很...[详细]
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