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| 型号： | 24LC256 |
| 厂商： | Microchip Technology Inc. |
| 英文描述： | 256K I 2 C ⑩ CMOS Serial EEPROM |
| 中文描述： | 256K的I 2 C⑩的CMOS串行EEPROM |
| 文件页数： | 5/12页 |
| 文件大小： | 181K |
| 代理商： | 24LC256 |
24AA256/24LC256
DS21203C-page 2
1998 Microchip Technology Inc.
1.0
ELECTRICAL
CHARACTERISTICS
1.1
Maximum Ratings*
VCC.................................................................................................7.0V
All inputs and outputs w.r.t. VSS ............................. -0.6V to VCC +1.0V
Storage temperature ...................................................-65
°C to +150°C
Ambient temp. with power applied...............................-65
°C to +125°C
Soldering temperature of leads (10 seconds) ...........................+300
°C
ESD protection on all pins
.................................................................≥ 4 kV
*Notice: Stresses above those listed under “Maximum Ratings” may
cause permanent damage to the device. This is a stress rating only and
functional operation of the device at those or any other conditions
above those indicated in the operational listings of this specication is
not implied. Exposure to maximum rating conditions for extended peri-
ods may affect device reliability.
TABLE 1-1
PIN FUNCTION TABLE
FIGURE 1-1:
BUS TIMING DATA
Name
Function
A0, A1, A2 User Congurable Chip Selects
VSS
Ground
SDA
Serial Data
SCL
Serial Clock
WP
Write Protect Input
VCC
+1.8 to 5.5V (24AA256)
+2.5 to 5.5V (24LC256)
TABLE 1-2
DC CHARACTERISTICS
All parameters apply across the
specied operating ranges unless
otherwise noted.
Industrial (I):
VCC = +1.8V to 5.5V
Tamb = -40
°C to +85°C
Automotive (E): VCC = +4.5V to 5.5V
Tamb = -40
°C to 125°C
Parameter
Symbol
Min
Max
Units
Conditions
A0, A1, A2,
SCL, SDA, and WP pins:
High level input voltage
VIH
0.7 VCC
—V
Low level input voltage
VIL
—
0.3 VCC
0.2 VCC
V
Vcc
≥ 2.5V
Vcc < 2.5V
Hysteresis of Schmitt Trigger
inputs (SDA, SCL pins)
VHYS
0.05 VCC
—V
VCC
≥ 2.5V (Note)
Low level output voltage
VOL
—
0.40
V
IOL = 3.0 mA @ VCC = 4.5V
IOL = 2.1 mA @ VCC = 2.5V
Input leakage current
ILI
-10
10
AVIN = VSS or VCC, WP = VSS
VIN = VSS or VCC, WP = VCC
Output leakage current
ILO
-10
10
AVOUT = VSS or VCC
Pin capacitance
(all inputs/outputs)
CIN, COUT
—10
pF
VCC = 5.0V (Note)
Tamb = 25C, fc= 1 MHz
Operating current
ICC Write
—
3
mA
VCC = 5.5V
ICC Read
—
400
AVCC = 5.5V, SCL = 400 kHz
Standby current
ICCS
—1
A
SCL = SDA = VCC = 5.5V
A0, A1, A2, WP = VSS
Note: This parameter is periodically sampled and not 100% tested.
WP
(unprotected)
(protected)
TSU:WP
THD:WP
SCL
SDA
IN
TSU:STA
SDA
OUT
THD:STA
TLOW
THIGH
TR
TBUF
TAA
THD:DAT
TSU:DAT
TSU:STO
TSP
TF
VHYS
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相关代理商/技术参数 |
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| 24LC256-E/MF | 功能描述:电可擦除可编程只读存储器 32kx8 - 2.5V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 24LC256E/MS | 制造商:Microchip Technology 功能描述:EEPROM Serial-I2C 256K-Bit 32K x 8 3.3V/5V 8-Pin MSOP Tube |
| 24LC256-E/MS | 功能描述:电可擦除可编程只读存储器 32kx8 - 2.5V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 24LC256-E/P | 功能描述:电可擦除可编程只读存储器 32kx8 - 2.5V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 24LC256-E/SM | 功能描述:电可擦除可编程只读存储器 32kx8 - 2.5V RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
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