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AT24C02A 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 AT24C02A은 전자 산업 및 응용 분야에서
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부품번호 AT24C02A 기능
기능 2-Wire Serial EEPROM
제조업체 ATMEL Corporation
로고 ATMEL Corporation 로고


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AT24C02A 데이터시트, 핀배열, 회로
Features
Write Protect Pin for Hardware Data Protection
– Utilizes Different Array Protection Compared to the AT24C02/04
Low-voltage and Standard-voltage Operation
– 2.7 (VCC = 2.7V to 5.5V)
– 1.8 (VCC = 1.8V to 5.5V)
Internally Organized 256 x 8 (2K), 512 x 8 (4K)
Two-wire Serial Interface
Schmitt Trigger, Filtered Inputs for Noise Suppression
Bidirectional Data Transfer Protocol
100 kHz (1.8V) and 400 kHz (2.5V, 2.7V, 5V) Clock Rate
8-byte Page (2K), 16-byte Page (4K) Write Modes
Partial Page Writes Allowed
Self-timed Write Cycle (5 ms Max)
High Reliability
– Endurance: One Million Write Cycles
– Data Retention: 100 Years
Automotive Grade, Extended Temperature and Lead-Free/Halogen-Free Devices
Available
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead MAP, 8-lead TSSOP and 8-ball dBGA2 Packages
Die Sales: Wafer Form, Waffle Pack, and Bumped Wafers.
Two-wire Serial
EEPROM
2K (256 x 8)
4K (512 x 8)
AT24C02A
Description
The AT24C02A/04A provides 2048/4096 bits of serial electrically erasable and program-
mable read-only memory (EEPROM) organized as 256/512 words of 8 bits each. The
device is optimized for use in many industrial and commercial applications where low-
power and low-voltage operation are essential. The AT24C02A/04A is available in
space-saving 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead MAP and 8-lead TSSOP pack-
ages and is accessed via a two-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.
AT24C04A
Table 1. Pin Configuration
Pin Name
Function
A0–A2
Address Inputs
SDA
Serial Data
SCL Serial Clock Input
WP Write Protect
NC No-connect
8-lead TSSOP
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-lead PDIP
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-lead MAP
VCC 8
1 A0
WP 7
2 A1
SCL 6
3 A2
SDA 5
4 GND
Bottom View
8-lead SOIC
A0
A1
A2
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
8-ball dBGA2
VCC 8
WP 7
SCL 6
SDA 5
1 A0
2 A1
3 A2
4 GND
Bottom View
Rev. 0976Q–SEEPR–8/05
1




AT24C02A pdf, 반도체, 판매, 대치품
Table 4. DC Characteristics
Applicable over recommended operating range from: TAI = 40°C to +85°C, VCC = +1.8V to +5.5V (unless otherwise noted)
Symbol Parameter
Test Condition
Min Typ Max
Units
VCC1
VCC2
VCC3
VCC4
ICC
ICC
ISB1
ISB2
ISB3
ISB4
ILI
ILO
VIL
VIH
VOL2
VOL1
Note:
Supply Voltage
Supply Voltage
Supply Voltage
Supply Voltage
Supply Current VCC = 5.0V
Supply Current VCC = 5.0V
Standby Current VCC = 1.8V
Standby Current VCC = 2.5V
Standby Current VCC = 2.7V
Standby Current VCC = 5.0V
Input Leakage Current
Output Leakage Current
Input Low Level (1)
READ at 100 kHz
WRITE at 100 kHz
VIN = VCC or VSS
VIN = VCC or VSS
VIN = VCC or VSS
VIN = VCC or VSS
VIN = VCC or VSS
VOUT = VCC or VSS
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.
1.8 5.5
2.5 5.5
2.7 5.5
4.5 5.5
0.4 1.0
2.0 3.0
0.6 3.0
1.4 4.0
1.6 4.0
8.0 18.0
0.10 3.0
0.05 3.0
0.6
VCC x 0.7
VCC x 0.3
VCC + 0.5
0.4
0.2
V
V
V
V
mA
mA
µA
µA
µA
µA
µA
µA
V
V
V
V
4 AT24C02A/04A
0976Q–SEEPR–8/05

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AT24C02A 전자부품, 판매, 대치품
Figure 4. Bus Timing
AT24C02A/04A
Figure 5. Write Cycle Timing
SCL
SDA
8th BIT
ACK
Notes:
WORDn
(1)
twr
STOP
CONDITION
START
CONDITION
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.
Figure 6. Output Acknowledge
0976Q–SEEPR–8/05
7

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