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부품번호 | AT24C02A 기능 |
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기능 | 2-Wire Serial EEPROM | ||
제조업체 | ATMEL Corporation | ||
로고 | |||
전체 20 페이지수
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
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
4페이지 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
7페이지 | |||
구 성 | 총 20 페이지수 | ||
다운로드 | [ AT24C02A.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
AT24C02 | 2-Wire Serial EEPROM | ATMEL Corporation |
AT24C02A | 2-Wire Serial EEPROM | ATMEL Corporation |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |