|
|
|
부품번호 | AT24C64 기능 |
|
|
기능 | 2-Wire Serial EEPROM | ||
제조업체 | ATMEL Corporation | ||
로고 | |||
전체 19 페이지수
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
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
4페이지 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
7페이지 | |||
구 성 | 총 19 페이지수 | ||
다운로드 | [ AT24C64.PDF 데이터시트 ] |
당사 플랫폼은 키워드, 제품 이름 또는 부품 번호를 사용하여 검색할 수 있는 |
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 |
AT24C64 | 2-Wire Serial EEPROM | ATMEL Corporation |
AT24C64A | Two-wire Serial EEPROM | ATMEL Corporation |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |