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R1EX24256ASAS0A 데이터시트 PDF




Renesas Technology에서 제조한 전자 부품 R1EX24256ASAS0A은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


PDF 형식의 R1EX24256ASAS0A 자료 제공

부품번호 R1EX24256ASAS0A 기능
기능 Two-wire serial interface 256k EEPROM
제조업체 Renesas Technology
로고 Renesas Technology 로고


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R1EX24256ASAS0A 데이터시트, 핀배열, 회로
R1EX24256ASAS0A
R1EX24256ATBS0A
Two-wire serial interface
256k EEPROM (32-kword × 8-bit)
www.DataSheet4U.com
REJ03C0322-0100
Rev.1.00
April. 04, 2008
Description
R1EX24xxx series are two-wire serial interface EEPROM (Electrically Erasable and Programmable
ROM). They realize high speed, low power consumption and a high level of reliability by employing
advanced MNOS memory technology and CMOS process and low voltage circuitry technology. They also
have a 64-byte page programming function to make their write operation faster.
Note:
Renesas Technology’s serial EEPROM are authorized for using consumer applications such as
cellular phone, camcorders, audio equipment. Therefore, please contact Renesas Technology’s
sales office before using industrial applications such as automotive systems, embedded controllers,
and meters.
Features
Single supply: 1.8 V to 5.5 V
Two-wire serial interface (I2C serial bus)
Clock frequency: 400 kHz
Power dissipation:
Standby: 2 µA (max)
Active (Read): 1 mA (max)
Active (Write): 5 mA (max)
Automatic page write: 64-byte/page
Write cycle time: 5 ms
Endurance: 106 Cycles
Data retention: 10 Years
REJ03C0322-0100 Rev.1.00 April. 04, 2008
Page 1 of 21




R1EX24256ASAS0A pdf, 반도체, 판매, 대치품
R1EX24256xxS0A
DC Operating Conditions
Parameter
Symbol
Supply voltage
Input high voltage
Input low voltage
Operating temperature
V
CC
V
SS
VIH
VIL
Topr
Notes: 1. VIL (min): 1.0 V for pulse width 50 ns.
Min
1.8
0
VCC × 0.7
0.3*1
40
Typ
0
Max
5.5
0
VCC + 0.5
VCC × 0.3
+85
Unit
V
V
V
V
°C
www.DataSheet4U.com
DC Characteristics (Ta = 40 to +85°C, VCC = 1.8 V to 5.5 V)
Parameter
Symbol Min Typ Max Unit
Input leakage current
ILI
  2.0 µA
Output leakage current I
LO
  2.0 µA
Standby V current
I
1.0 2.0 µA
CC SB
Read VCC current
ICC1   1.0 mA
Write VCC current
ICC2   5.0 mA
Output low voltage
V   0.4 V
OL2
V   0.2 V
OL1
Test conditions
VCC = 5.5 V, Vin = 0 to 5.5 V
V = 5.5 V, Vout = 0 to 5.5 V
CC
Vin = V or V
SS CC
VCC = 5.5 V, Read at 400 kHz
VCC = 5.5 V, Write at 400 kHz
V = 2.7 to 5.5 V, I = 3.0 mA
CC OL
V = 1.8 to 2.7 V, I = 1.5 mA
CC OL
Capacitance (Ta = +25°C, f = 1 MHz)
Parameter
Symbol Min
Input capacitance (A0 to A2, SCL, WP) Cin*1
Output capacitance (SDA)
CI/O*1
Note: 1. This parameter is sampled and not 100% tested.
Typ
Max
6.0
6.0
Unit
pF
pF
Test
conditions
Vin = 0 V
Vout = 0 V
REJ03C0322-0100 Rev.1.00 April. 04, 2008
Page 4 of 21

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R1EX24256ASAS0A 전자부품, 판매, 대치품
R1EX24256xxS0A
Pin Function
Serial Clock (SCL)
The SCL pin is used to control serial input/output data timing. The SCL input is used to positive edge
clock data into EEPROM device and negative edge clock data out of each device. Maximum clock rate is
400 kHz.
Serial Input/Output Data (SDA)
The SDA pin is bidirectional for serial data transfer. The SDA pin needs to be pulled up by resistor as that
www.DataSheetp4iUn.cisoompen-drain driven structure. Use proper resistor value for your system by considering VOL, IOL and
the SDA pin capacitance. Except for a start condition and a stop condition which will be discussed later,
the SDA transition needs to be completed during the SCL low period.
Data Validity (SDA data change timing waveform)
SCL
SDA
Note:
Data
change
Data
change
High-to-low and low-to-high change of SDA should be done during the SCL low period.
REJ03C0322-0100 Rev.1.00 April. 04, 2008
Page 7 of 21

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Two-wire serial interface 256k EEPROM

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