参数资料
型号: 24FC256T-I/MF
厂商: Microchip Technology
文件页数: 3/38页
文件大小: 0K
描述: IC EEPROM 256KBIT 1MHZ 8DFN
产品培训模块: I2C Serial EEPROM
标准包装: 3,300
格式 - 存储器: EEPROMs - 串行
存储器类型: EEPROM
存储容量: 256K (32K x 8)
速度: 400kHz,1MHz
接口: I²C,2 线串口
电源电压: 1.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
封装/外壳: 8-VDFN 裸露焊盘
供应商设备封装: 8-DFN-S(6x5)
包装: 带卷 (TR)
24AA256/24LC256/24FC256
TABLE 1-2:
AC CHARACTERISTICS
Electrical Characteristics:
AC CHARACTERISTICS
Industrial (I): V CC = +1.7V to 5.5V
Automotive (E): V CC = +2.5V to 5.5V
T A = -40°C to +85°C
T A = -40°C to +125°C
Param.
No.
1
Sym.
F CLK
Characteristic
Clock frequency
Min.
Max.
100
Units
kHz
Conditions
1.7V ? V CC ? 2.5V
400
400
1000
2.5V ? V CC ? 5.5V
1.7V ? V CC ? 2.5V 24FC256
2.5V ? V CC ? 5.5V 24FC256
2
T HIGH
Clock high time
4000
600
ns
1.7V ? V CC ? 2.5V
2.5V ? V CC ? 5.5V
600
500
1.7V ? V CC ? 2.5V 24FC256
2.5V ? V CC ? 5.5V 24FC256
3
T LOW
Clock low time
4700
ns
1.7V ? V CC ? 2.5V
1300
1300
500
2.5V ? V CC ? 5.5V
1.7V ? V CC ? 2.5V 24FC256
2.5V ? V CC ? 5.5V 24FC256
4
T R
SDA and SCL rise time
1000
ns
1.7V ? V CC ? 2.5V
(Note 1)
300
300
2.5V ? V CC ? 5.5V
1.7V ? V CC ? 5.5V 24FC256
5
T F
SDA and SCL fall time
300
ns
All except, 24FC256
(Note 1)
100
1.7V ? V CC ? 5.5V 24FC256
6
T HD : STA Start condition hold time
4000
ns
1.7V ? V CC ? 2.5V
600
600
250
2.5V ? V CC ? 5.5V
1.7V ? V CC ? 2.5V 24FC256
2.5V ? V CC ? 5.5V 24FC256
7
T SU : STA Start condition setup time
4700
ns
1.7V ? V CC ? 2.5V
600
600
250
2.5V ? V CC ? 5.5V
1.7V ? V CC ? 2.5V 24FC256
2.5V ? V CC ? 5.5V 24FC256
8
9
T HD : DAT Data input hold time
T SU : DAT Data input setup time
0
250
ns
ns
(Note 2)
1.7V ? V CC ? 2.5V
100
100
2.5V ? V CC ? 5.5V
1.7V ? V CC ? 5.5V 24FC256
10
T SU : STO Stop condition setup time
4000
ns
1.7V ? V CC ? 2.5V
600
600
250
2.5V ? V CC ? 5.5V
1.7V ? V CC ? 2.5V 24FC256
2.5V ? V CC ? 5.5V 24FC256
11
T SU : WP
WP setup time
4000
ns
1.7V ? V CC ? 2.5V
600
600
2.5V ? V CC ? 5.5V
1.7V ? V CC ? 5.5V 24FC256
12
T HD : WP
WP hold time
4700
ns
1.7V ? V CC ? 2.5V
1300
1300
2.5V ? V CC ? 5.5V
1.7V ? V CC ? 5.5V 24FC256
Note 1:
2:
3:
4:
Not 100% tested. C B = total capacitance of one bus line in pF.
As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region
(minimum 300 ns) of the falling edge of SCL to avoid unintended generation of Start or Stop conditions.
The combined T SP and V HYS specifications are due to new Schmitt Trigger inputs, which provide improved
noise spike suppression. This eliminates the need for a T I specification for standard operation.
This parameter is not tested but ensured by characterization. For endurance estimates in a specific
application, please consult the Total Endurance? Model, which can be obtained from Microchip’s web site
at www.microchip.com.
? 1998-2011 Microchip Technology Inc.
DS21203R-page 3
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