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參數(shù)資料
| 型號： | 24LC21A-SN |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 1K 2.5V Dual Mode I 2 C Serial EEPROM |
| 中文描述： | 一千2.5V的雙模式的I 2 C串行EEPROM |
| 文件頁數(shù)： | 3/12頁 |
| 文件大?。?/td> | 81K |
| 代理商： | 24LC21A-SN |
1996 Microchip Technology Inc.
DS21095F-page 3
24LC21
TABLE 1-3:
AC CHARACTERISTICS
Parameter
Symbol
Standard Mode
Vcc= 4.5 - 5.5V
Fast Mode
Units
Remarks
Min
—
4000
4700
—
—
4000
Max
100
—
—
1000
300
—
Min
—
600
1300
—
—
600
Max
400
—
—
300
300
—
Clock frequency
Clock high time
Clock low time
SDA and SCL rise time
SDA and SCL fall time
START condition hold time
F
T
T
CLK
kHz
ns
ns
ns
ns
ns
HIGH
LOW
T
R
T
F
:
STA
(Note 1)
(Note 1)
After this period the first clock
pulse is generated
Only relevant for repeated
START condition
(Note 2)
T
HD
START condition setup
time
Data input hold time
Data input setup time
STOP condition setup time T
Output valid from clock
Bus free time
T
SU
:
STA
4700
—
600
—
ns
T
T
HD
:
:
:
DAT
0
—
—
—
0
—
—
—
900
—
ns
ns
ns
ns
ns
SU
DAT
250
4000
—
4700
100
600
—
1300
SU
T
T
STO
AA
3500
—
(Note 2)
Time the bus must be free
before a new transmission
can start
(Note 1), C
B
≤
BUF
Output fall time from V
min to V
IL
max
Input filter spike suppres-
sion (SDA and SCL pins)
Write cycle time
Transmit-Only Mode Parameters
Output valid from VCLK
VCLK high time
VCLK low time
Mode transition time
Transmit-Only power up
time
Endurance
IH
T
OF
—
250
20 + .1
C
B
—
250
ns
100 pF
T
SP
—
50
50
ns
(Note 3)
T
WR
—
10
—
10
ms
Byte or Page mode
T
VAA
—
2000
—
—
500
—
—
600
1300
—
0
1000
—
—
500
—
ns
ns
ns
ns
ns
T
T
VHIGH
4000
4700
—
0
VLOW
T
VHZ
T
VPU
—
10M
—
10M
—
cycles 25
°
C, Vcc = 5.0V, Block Mode
(Note 4)
Note 1: Not 100% tested. C
2: As a transmitter, the device must provide an internal minimum delay time to bridge the undefined region (min-
imum 300 ns) of the falling edge of SCL to avoid unintended generation of START or STOP conditions.
3: The combined T
SP
and V
HYS
specifications are due to new Schmitt trigger inputs which provide improved
noise and spike suppression. This eliminates the need for a T
4: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific appli-
cation, please consult the Total Endurance Model which can be obtained on our BBS or website.
B
= total capacitance of one bus line in pF.
I
specification for standard operation.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 24LC21AT/SN | 功能描述:電可擦除可編程只讀存儲器 2.5V Dual Mode RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 24LC21AT/SN-CUT TAPE | 制造商:Microchip 功能描述:24LC21 Series 1 Kb I2C 2 Wire (128 x 8) 2.5V Serial EEPROM SMT - SOIC-8 |
| 24LC21AT-I/SN | 功能描述:電可擦除可編程只讀存儲器 2.5V Dual Mode RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 24LC21AT-I/SNG | 功能描述:電可擦除可編程只讀存儲器 2.5V Dual Mode Lead Free Package RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 24LC21-I/P | 功能描述:電可擦除可編程只讀存儲器 2.5V Dual Mode RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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