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AT24C64

8K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8
8K × 8 I2C/2-线 串行 电可擦除只读存储器, PDIP8

器件类别：存储   

厂商名称：Atmel (Microchip)

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参数 预览 参数对比
器件参数
参数名称
属性值
功能数量
1
端子数量
8
最大工作温度
85 Cel
最小工作温度
-40 Cel
最大供电/工作电压
5.5 V
最小供电/工作电压
2.7 V
额定供电电压
3 V
最大时钟频率
0.1000 MHz
加工封装描述
0.300 INCH, PLASTIC, MS-001BA, DIP-8
状态
ACTIVE
工艺
CMOS
包装形状
RECTANGULAR
包装尺寸
IN-LINE
端子形式
THROUGH-HOLE
端子间距
2.54 mm
端子涂层
TIN LEAD
端子位置
DUAL
包装材料
PLASTIC/EPOXY
温度等级
INDUSTRIAL
内存宽度
8
组织
8K X 8
存储密度
65536 deg
操作模式
SYNCHRONOUS
位数
8192 words
位数
8K
内存IC类型
I2C/2-WIRE SERIAL EEPROM
串行并行
SERIAL
写周期最大TWC
10 ms
文档预览
Features
•
Low-Voltage and Standard-Voltage Operation
•
•
•
•
•
•
•
•
•
•
•
•
– 2.7 (V
CC
= 2.7V to 5.5V)
– 1.8 (V
CC
= 1.8V to 5.5V)
Low-Power Devices (I
SB
= 2 µA at 5.5V) Available
Internally Organized 4096 x 8, 8192 x 8
2-Wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
100 kHz (1.8V, 2.5V, 2.7V) and 400 kHz (5V) Clock Rate
Write Protect Pin for Hardware Data Protection
32-Byte Page Write Mode (Partial Page Writes Allowed)
Self-Timed Write Cycle (10 ms max)
High Reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
Automotive Grade and Extended Temperature Devices Available
8-Pin JEDEC PDIP, 8-Pin JEDEC SOIC, 8-Pin EIAJ SOIC,
and 8-pin TSSOP Packages
2-Wire
Serial EEPROM
32K (4096 x 8)
64K (8192 x 8)
Description
The AT24C32/64 provides 32,768/65,536 bits of serial electrically erasable and pro-
grammable read only memory (EEPROM) organized as 4096/8192 words of 8 bits
each. The device’s cascadable feature allows up to 8 devices to share a common 2-
wire bus. The device is optimized for use in many industrial and commercial applica-
tions where low power and low voltage operation are essential. The AT24C32/64 is
available in space saving 8-pin JEDEC PDIP, 8-pin JEDEC SOIC, 8-pin EIAJ SOIC,
and 8-pin TSSOP (AT24C64) packages and is accessed via a 2-wire serial interface.
In addition, the entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 5.5V)
versions.
AT24C32
AT24C64
Pin Configurations
Pin Name
A0 - A2
SDA
SCL
WP
Function
Address Inputs
Serial Data
Serial Clock Input
Write Protect
8-Pin PDIP
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
A0
A1
A2
GND
8-Pin TSSOP
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
2-Wire, 32K
Serial E
2
PROM
8-Pin SOIC
A0
A1
A2
GND
1
2
3
4
8
7
6
5
VCC
WP
SCL
SDA
Rev. 0336K–SEEPR–7/03
1
Absolute Maximum Ratings*
Operating Temperature.................................. -55°C to +125°C
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin
with Respect to Ground .....................................-1.0V to +7.0V
Maximum Operating Voltage .......................................... 6.25V
DC Output Current........................................................ 5.0 mA
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
Block Diagram
2
AT24C32/64
0336K–SEEPR–7/03
AT24C32/64
Pin Description
SERIAL CLOCK (SCL):
The SCL input is used to positive edge clock data into each
EEPROM device and negative edge clock data out of each device.
SERIAL DATA (SDA):
The SDA pin is bidirectional for serial data transfer. This pin is
open-drain driven and may be wire-ORed with any number of other open-drain or open
collector devices.
DEVICE/PAGE ADDRESSES (A2, A1, A0):
The A2, A1 and A0 pins are device address
inputs that are hard wired or left not connected for hardware compatibility with
AT24C16. When the pins are hardwired, as many as eight 32K/64K devices may be
addressed on a single bus system (device addressing is discussed in detail under the
Device Addressing section). When the pins are not hardwired, the default A
2
, A
1
, and A
0
are zero.
WRITE PROTECT (WP):
The write protect input, when tied to GND, allows normal write
operations. When WP is tied high to V
CC
, all write operations to the upper quandrant
(8/16K bits) of memory are inhibited. If left unconnected, WP is internally pulled down to
GND.
Memory Organization
AT24C32/64, 32K/64K SERIAL EEPROM:
The 32K/64K is internally organized as 256
pages of 32 bytes each. Random word addressing requires a 12/13 bit data word
address.
3
0336K–SEEPR–7/03
Pin Capacitance
(1)
Applicable over recommended operating range from T
A
= 25°C, f = 1.0 MHz, V
CC
= +1.8V.
Symbol
C
I/O
C
IN
Note:
Test Condition
Input/Output Capacitance (SDA)
Input Capacitance (A
0
, A
1
, A
2
, SCL)
1. This parameter is characterized and is not 100% tested.
Max
8
6
Units
pF
pF
Conditions
V
I/O
= 0V
V
IN
= 0V
DC Characteristics
Applicable over recommended operating range from: T
AI
= -40°C to +85°C, V
CC
= +1.8V to +5.5V, T
AC
= 0°C to +70°C,
V
CC
= +1.8V to +5.5V (unless otherwise noted).
Symbol
V
CC1
V
CC2
V
CC3
V
CC4
I
CC1
I
CC2
I
SB1
Parameter
Supply Voltage
Supply Voltage
Supply Voltage
Supply Voltage
Supply Current
Supply Current
Standby Current
(1.8V option)
Standby Current
(2.5V option)
Standby Current
(2.7V option)
Standby Current
(5V option)
Input Leakage
Current
Output Leakage
Current
Input Low Level
(1)
Input High Level
(1)
Output Low Level
Output Low Level
V
CC
= 3.0V
V
CC
= 1.8V
I
OL
= 2.1 mA
I
OL
= 0.15 mA
V
CC
= 5.0V
V
CC
= 5.0V
V
CC
= 1.8V
V
CC
= 5.5V
V
CC
= 2.5V
V
CC
= 5.5V
V
CC
= 2.7V
V
CC
= 5.5V
V
CC
= 4.5 - 5.5V
V
IN
= V
CC
or V
SS
V
OUT
= V
CC
or V
SS
-0.6
V
CC
x 0.7
READ at 100 kHz
WRITE at 100 kHz
V
IN
= V
CC
or V
SS
Test Condition
Min
1.8
2.5
2.7
4.5
0.4
2.0
Typ
Max
5.5
5.5
5.5
5.5
1.0
3.0
0.1
2.0
0.5
V
IN
= V
CC
or V
SS
2.0
0.5
V
IN
= V
CC
or V
SS
V
IN
= V
CC
or V
SS
20
0.10
0.05
2.0
35
3.0
3.0
V
CC
x 0.3
V
CC
+ 0.5
0.4
0.2
µA
µA
µA
V
V
V
V
µA
µA
Units
V
V
V
V
mA
mA
µA
I
SB2
I
SB3
I
SB4
I
LI
I
LO
V
IL
V
IH
V
OL2
V
OL1
Note:
1. V
IL
min and V
IH
max are reference only and are not tested.
4
AT24C32/64
0336K–SEEPR–7/03
AT24C32/64
AC Characteristics
Applicable over recommended operating range from T
A
= -40°C to +85°C, V
CC
= +1.8V to +5.5V, CL = 1 TTL Gate and 100
pF (unless otherwise noted).
1.8-volt
Symbol
f
SCL
t
LOW
t
HIGH
t
I
t
AA
t
BUF
t
HD.STA
t
SU.STA
t
HD.DAT
t
SU.DAT
t
R
t
F
t
SU.STO
t
DH
t
WR
Endurance
(1)
Note:
Parameter
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
Noise Suppression Time
(1)
Clock Low to Data Out Valid
Time the bus must be free
before a new transmission can start
(1)
Start Hold Time
Start Set-up Time
Data In Hold Time
Data In Set-up Time
Inputs Rise Time
(1)
Inputs Fall Time
(1)
Stop Set-up Time
Data Out Hold Time
Write Cycle Time
5.0V, 25°C, Page Mode
1M
4.7
100
20
1M
0.1
4.7
4.0
4.7
0
200
1.0
300
4.7
100
10
1M
4.7
4.0
100
4.5
0.1
4.7
4.0
4.7
0
200
1.0
300
0.6
50
10
Min
Max
100
4.7
4.0
100
4.5
0.1
1.2
0.6
0.6
0
100
0.3
300
2.7-, 2.5-volt
Min
Max
100
1.2
0.6
50
0.9
5.0-volt
Min
Max
400
Units
kHz
µs
µs
ns
µs
µs
µs
µs
µs
ns
µs
ns
µs
ns
ms
Write
Cycles
1. This parameter is characterized and is not 100% tested.
5
0336K–SEEPR–7/03
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参数对比
与AT24C64相近的元器件有：AT24C32、AT24C32_03、AT24C64-10PI-2.7、AT24C64W-10SI-1.8、AT24C64N-10SI-2.7、AT24C64N-10SI-1.8、AT24C64-10TI-2.7、AT24C64-10TI-1.8、AT24C64-10PI-1.8。描述及对比如下：
型号 AT24C64 AT24C32 AT24C32_03 AT24C64-10PI-2.7 AT24C64W-10SI-1.8 AT24C64N-10SI-2.7 AT24C64N-10SI-1.8 AT24C64-10TI-2.7 AT24C64-10TI-1.8 AT24C64-10PI-1.8
描述 8K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8 8K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8 8K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8 8K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8 8K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8 8K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8 8K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8 8K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8 8K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8 8K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8
功能数量 1 1 1 1 1 1 1 1 1 1
端子数量 8 8 8 8 8 8 8 8 8 8
端子形式 THROUGH-HOLE THROUGH-HOLE THROUGH-HOLE THROUGH-HOLE GULL WING GULL WING GULL WING GULL WING GULL WING THROUGH-HOLE
端子位置 DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL DUAL
温度等级 INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL INDUSTRIAL
内存宽度 8 8 8 8 8 8 8 8 8 8
组织 8K X 8 8K X 8 8K X 8 8KX8 8KX8 8KX8 8KX8 8KX8 8KX8 8KX8
是否无铅 - - - 含铅 含铅 含铅 含铅 含铅 含铅 含铅
是否Rohs认证 - - - 不符合 不符合 不符合 不符合 不符合 不符合 不符合
厂商名称 - - - Atmel (Microchip) Atmel (Microchip) Atmel (Microchip) Atmel (Microchip) Atmel (Microchip) Atmel (Microchip) Atmel (Microchip)
零件包装代码 - - - DIP SOIC SOIC SOIC TSSOP TSSOP DIP
包装说明 - - - DIP, DIP8,.3 SOP, SOP8,.3 SOP, SOP8,.25 SOP, SOP8,.25 TSSOP, TSSOP8,.25 TSSOP, TSSOP8,.25 DIP, DIP8,.3
针数 - - - 8 8 8 8 8 8 8
Reach Compliance Code - - - compli compli compli compli compli compli compli
ECCN代码 - - - EAR99 EAR99 EAR99 EAR99 EAR99 EAR99 EAR99
其他特性 - - - DATA RETENTION: 100 YEARS DATA RETENTION: 100 YEARS DATA RETENTION: 100 YEARS DATA RETENTION: 100 YEARS DATA RETENTION: 100 YEARS DATA RETENTION: 100 YEARS DATA RETENTION: 100 YEARS
最大时钟频率 (fCLK) - - - 0.1 MHz 0.1 MHz 0.1 MHz 0.1 MHz 0.1 MHz 0.1 MHz 0.1 MHz
数据保留时间-最小值 - - - 100 100 100 100 100 100 100
耐久性 - - - 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles 1000000 Write/Erase Cycles
I2C控制字节 - - - 1010DDDR 1010DDDR 1010DDDR 1010DDDR 1010DDDR 1010DDDR 1010DDDR
JESD-30 代码 - - - R-PDIP-T8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDSO-G8 R-PDIP-T8
JESD-609代码 - - - e0 e0 e0 e0 e0 e0 e0
长度 - - - 9.271 mm 5.31 mm 4.9 mm 4.9 mm 4.4 mm 4.4 mm 9.271 mm
内存密度 - - - 65536 bi 65536 bi 65536 bi 65536 bi 65536 bi 65536 bi 65536 bi
内存集成电路类型 - - - EEPROM EEPROM EEPROM EEPROM EEPROM EEPROM EEPROM
字数 - - - 8192 words 8192 words 8192 words 8192 words 8192 words 8192 words 8192 words
字数代码 - - - 8000 8000 8000 8000 8000 8000 8000
工作模式 - - - SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS SYNCHRONOUS
最高工作温度 - - - 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C 85 °C
最低工作温度 - - - -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C -40 °C
封装主体材料 - - - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
封装代码 - - - DIP SOP SOP SOP TSSOP TSSOP DIP
封装等效代码 - - - DIP8,.3 SOP8,.3 SOP8,.25 SOP8,.25 TSSOP8,.25 TSSOP8,.25 DIP8,.3
封装形状 - - - RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 - - - IN-LINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, THIN PROFILE, SHRINK PITCH IN-LINE
并行/串行 - - - SERIAL SERIAL SERIAL SERIAL SERIAL SERIAL SERIAL
峰值回流温度（摄氏度） - - - NOT SPECIFIED 240 240 240 240 240 NOT SPECIFIED
电源 - - - 3/5 V 2/5 V 3/5 V 2/5 V 3/5 V 2/5 V 2/5 V
认证状态 - - - Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified Not Qualified
座面最大高度 - - - 5.334 mm 2.03 mm 1.75 mm 1.75 mm 1.2 mm 1.2 mm 5.334 mm
串行总线类型 - - - I2C I2C I2C I2C I2C I2C I2C
最大待机电流 - - - 5e-7 A 1e-7 A 5e-7 A 1e-7 A 5e-7 A 1e-7 A 1e-7 A
最大压摆率 - - - 0.003 mA 0.003 mA 0.003 mA 0.003 mA 0.003 mA 0.003 mA 0.003 mA
最大供电电压 (Vsup) - - - 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V 5.5 V
最小供电电压 (Vsup) - - - 2.7 V 1.8 V 2.7 V 1.8 V 2.7 V 1.8 V 1.8 V
标称供电电压 (Vsup) - - - 3 V 2.5 V 3 V 2.5 V 3 V 2.5 V 2.5 V
表面贴装 - - - NO YES YES YES YES YES NO
技术 - - - CMOS CMOS CMOS CMOS CMOS CMOS CMOS
端子面层 - - - Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
端子节距 - - - 2.54 mm 1.27 mm 1.27 mm 1.27 mm 0.65 mm 0.65 mm 2.54 mm
处于峰值回流温度下的最长时间 - - - NOT SPECIFIED 30 30 30 30 30 NOT SPECIFIED
宽度 - - - 7.62 mm 5.27 mm 3.9 mm 3.9 mm 3 mm 3 mm 7.62 mm
最长写入周期时间 (tWC) - - - 10 ms 20 ms 10 ms 20 ms 10 ms 20 ms 20 ms
写保护 - - - HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE HARDWARE
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器件捷径:
S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY
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