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参数资料
| 型号： | 24AA65-SM |
| 厂商： | Microchip Technology Inc. |
| 英文描述： | 64K 1.8V I 2 C O Smart Serial O EEPROM |
| 中文描述： | 64K的1.8VI 2二氧化碳?串行EEPROM的智能 |
| 文件页数： | 6/12页 |
| 文件大小： | 105K |
| 代理商： | 24AA65-SM |
1996 Microchip Technology Inc.
DS21056F-page 3
24AA65
TABLE 1-3:
AC CHARACTERISTICS
FIGURE 1-2:
BUS TIMING DATA
Parameter
Symbol
Vcc = 1.8V - 6.0V
STD. MODE
Vcc = 4.5V - 6.0V
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 gen-
erated
START condition setup time
TSU:STA
4700
—
600
—
ns
Only relevant for
repeated START condi-
tion
Data input hold time
THD:DAT
0—
0
—
ns
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
(Note 2)
Bus free time
TBUF
4700
—
1300
—
ns
Time the bus must be
free before a new
transmission can start
Output fall time fro VIH min to
VIL max
TOF
—
250
20 +0.1
CB
250
ns
(Note 1), CB
≤ 100 pF
Input lter spike suppression
(SDA and SCL pins)
TSP
—
50
—
50
ns
(Note 3
Write cycle time
TWR
—
5
—
5
ms/
page
(Note 4)
Endurance
High Endurance Block
Rest of Array
10M
1M
—
10M
1M
—
cycles 25
°C, Vcc = 5.0V, Block
Mode (Note 5)
Note 1: Not 100 percent 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 and spike suppression. This eliminates the need for a TI specication for standard operation.
4: The times shown are for a single page of 8 bytes. Multiply by the number of pages loaded into the write
cache for total time.
5: 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
SDA
IN
SDA
OUT
TSU:STA
TSP
TAA
TF
TLOW
THIGH
THD:STA
THD:DAT
TSU:DAT
TSU:STO
TBUF
TAA
TR
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