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AT24C64 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 AT24C64은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 AT24C64 기능
기능 2-Wire Serial EEPROM
제조업체 ATMEL Corporation
로고 ATMEL Corporation 로고


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AT24C64 데이터시트, 핀배열, 회로
Features
Low-Voltage and Standard-Voltage Operation
– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
Low-Power Devices (ISB = 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
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.
2-Wire
Serial EEPROM
32K (4096 x 8)
64K (8192 x 8)
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 VCC
7 WP
6 SCL
5 SDA
8-Pin TSSOP
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-Pin SOIC
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
2-Wire, 32K
Serial E2PROM
Rev. 0336K–SEEPR–7/03
1




AT24C64 pdf, 반도체, 판매, 대치품
Pin Capacitance(1)
Applicable over recommended operating range from TA = 25°C, f = 1.0 MHz, VCC = +1.8V.
Symbol Test Condition
Max
CI/O
CIN
Note:
Input/Output Capacitance (SDA)
Input Capacitance (A0, A1, A2, SCL)
1. This parameter is characterized and is not 100% tested.
8
6
Units
pF
pF
Conditions
VI/O = 0V
VIN = 0V
DC Characteristics
Applicable over recommended operating range from: TAI = -40°C to +85°C, VCC = +1.8V to +5.5V, TAC = 0°C to +70°C,
VCC = +1.8V to +5.5V (unless otherwise noted).
Symbol Parameter
Test Condition
Min Typ Max Units
VCC1
Supply Voltage
1.8 5.5 V
VCC2
Supply Voltage
2.5 5.5 V
VCC3
Supply Voltage
2.7 5.5 V
VCC4
Supply Voltage
4.5 5.5 V
ICC1
Supply Current
VCC = 5.0V
READ at 100 kHz
0.4 1.0 mA
ICC2
Supply Current
VCC = 5.0V
WRITE at 100 kHz
2.0 3.0 mA
ISB1
Standby Current
(1.8V option)
VCC = 1.8V
VCC = 5.5V
VIN = VCC or VSS
0.1 µA
2.0
ISB2
Standby Current
(2.5V option)
VCC = 2.5V
VCC = 5.5V
VIN = VCC or VSS
0.5 µA
2.0
ISB3
Standby Current
(2.7V option)
VCC = 2.7V
VCC = 5.5V
VIN = VCC or VSS
0.5 µA
2.0
ISB4
Standby Current
(5V option)
VCC = 4.5 - 5.5V VIN = VCC or VSS
20 35 µA
ILI
Input Leakage
Current
VIN = VCC or VSS
0.10 3.0
µA
ILO
VIL
VIH
VOL2
VOL1
Note:
Output Leakage
Current
VOUT = VCC or VSS
Input Low Level(1)
Input High Level(1)
Output Low Level
VCC = 3.0V
IOL = 2.1 mA
Output Low Level
VCC = 1.8V
IOL = 0.15 mA
1. VIL min and VIH max are reference only and are not tested.
-0.6
VCC x 0.7
0.05
3.0
VCC x 0.3
VCC + 0.5
0.4
0.2
µA
V
V
V
V
4 AT24C32/64
0336K–SEEPR–7/03

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AT24C64 전자부품, 판매, 대치품
Bus Timing
SCL: Serial Clock, SDA: Serial Data I/O
AT24C32/64
Write Cycle Timing
SCL: Serial Clock, SDA: Serial Data I/O
SCL
SDA
8th BIT
WORDn
ACK
STOP
CONDITION
twr(1)
START
CONDITION
Note: 1. The write cycle time tWR is the time from a valid stop condition of a write sequence to the end of the internal clear/write cycle.
0336K–SEEPR–7/03
7

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