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参数资料
| 型号： | 24AA02T-I/SM |
| 元件分类： | PROM |
| 英文描述： | 256 X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8 |
| 封装： | 0.207 INCH, PLASTIC, SOIC-8 |
| 文件页数： | 7/13页 |
| 文件大小： | 191K |
| 代理商： | 24AA02T-I/SM |
24AA01/02
1998 Microchip Technology Inc.
DS21052H-page 3
FIGURE 1-2:
BUS TIMING DATA
TABLE 1-3:
AC CHARACTERISTICS
Parameter
Symbol
Standard Mode
VCC = 4.5 - 5.5V
Fast Mode
Units
Remarks
Min
Max
Min
Max
Clock frequency
FCLK
—
100
—
400
kHz
Clock high time
THIGH
4000
—
600
—
ns
Clock low time
TLOW
4700
—
1300
—
ns
SDA and SCL rise time
TR
—
1000
—
300
ns
(Note 1)
SDA and SCL fall time
TF
—
300
—
300
ns
(Note 1)
START condition hold time
THD:STA
4000
—
600
—
ns
After this period the rst
clock pulse is generated
START condition setup
time
TSU:STA
4700
—
600
—
ns
Only relevant for repeated
START condition
Data input hold time
THD:DAT
0—0—
ns
(Note 2)
Data input setup time
TSU:DAT
250
—
100
—
ns
STOP condition setup time
TSU:STO
4000
—
600
—
ns
Output valid from clock
TAA
—
3500
—
900
ns
(Note2)
Bus free time
TBUF
4700
—
1300
—
ns
Time the bus must be free
before a new transmis-
sion can start
Output fall time from VIH
min to VIL max
TOF
—
250
20 +0.1
CB
250
ns
(Note 1), CB
≤ 100 pF
Input lter spike suppres-
sion (SDA and SCL pins)
TSP
—
50
—
50
ns
(Note 3)
Write cycle time
TWR
—
10
—
10
ms
Byte or Page mode
Endurance
—
1M
—
1M
—
cycles
25°C, Vcc = 5.5V, Block
Mode (Note 4)
Note 1: Not 100% tested. CB = total capacitance of one bus line in pF.
2: As a transmitter, the device must provide an internal minimum delay time to bridge the undened region
(minimum 300 ns) of the falling edge of SCL to avoid unintended generation of START or STOP conditions.
3: The combined TSP and VHYS specications are due to new Schmitt trigger inputs which provide improved
noise spike suppression. This eliminates the need for a TI specication for standard operation.
4: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specic appli-
cation, please consult the Total Endurance Model which can be obtained on our BBS or website.
SCL
TSU:STA
TF
TLOW
THIGH
TR
THD:DAT
TSU:DAT
TSU:STO
THD:STA
TBUF
TAA
TSP
THD:STA
IN
SDA
OUT
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