24AA256UID Просмотр технического описания (PDF) - Microchip Technology
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24AA256UID
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24AA256UID Datasheet PDF : 30 Pages
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24AA256UID
TABLE 1-2: AC CHARACTERISTICS
AC CHARACTERISTICS
Electrical Characteristics:
Industrial (I):
VCC = +1.7V to 5.5V
TA = -40°C to +85°C
Param.
No.
Symbol
Characteristic
Min.
Max. Units
Conditions
1
FCLK Clock Frequency
—
100
kHz 1.7V ≤ VCC < 2.5V
—
400
kHz 2.5V ≤ VCC ≤ 5.5V
2
THIGH Clock High Time
4000
—
ns 1.7V ≤ VCC < 2.5V
600
—
ns 2.5V ≤ VCC ≤ 5.5V
3
TLOW Clock Low Time
4700
—
ns 1.7V ≤ VCC < 2.5V
1300
—
ns 2.5V ≤ VCC ≤ 5.5V
4
TR SDA and SCL Rise Time
—
1000
ns 1.7V ≤ VCC < 2.5V
(Note 1)
—
300
ns 2.5V ≤ VCC ≤ 5.5V
5
TF SDA and SCL Fall Time
—
300
ns
(Note 1)
6
THD:STA Start Condition Hold Time
4000
—
ns 1.7V ≤ VCC < 2.5V
600
—
ns 2.5V ≤ VCC ≤ 5.5V
7
TSU:STA Start Condition Setup Time
4700
—
ns 1.7V ≤ VCC < 2.5V
600
—
ns 2.5V ≤ VCC ≤ 5.5V
8
THD:DAT Data Input Hold Time
9
TSU:DAT Data Input Setup Time
0
—
ns Note 2
250
—
ns 1.7V ≤ VCC < 2.5V
100
—
ns 2.5V ≤ VCC ≤ 5.5V
10
TSU:STO Stop Condition Setup Time
4000
—
ns 1.7V ≤ VCC < 2.5V
600
—
ns 2.5V ≤ VCC ≤ 5.5V
11
TAA Output Valid from Clock
(Note 2)
—
3500
ns 1.7 V ≤ VCC < 2.5V
—
900
ns 2.5 V ≤ VCC ≤ 5.5V
12
TBUF Bus Free Time: Bus time
4700
—
ns 1.7V ≤ VCC < 2.5V
must be free before a new
transmission can start
1300
—
ns 2.5V ≤ VCC ≤ 5.5V
13
TOF Output Fall Time from VIH 10 + 0.1CB 250
ns Note 1
minimum to VIL maximum
CB ≤ 100 pF
14
TSP Input Filter Spike
—
50
ns Notes 1 and 3
Suppression (SDA and SCL
pins)
15
TWC Write Cycle Time (byte or
—
5
ms
page)
16
Note 1:
2:
3:
4:
Endurance
1,000,000
—
cycles Page mode, 25°C, 5.5V (Note 4)
Not 100% tested. CB = 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 TSP and VHYS specifications are due to new Schmitt Trigger inputs, which provide improved
noise spike suppression. This eliminates the need for a TI 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 website
at www.microchip.com.
2013-2016 Microchip Technology Inc.
DS20005215C-page 3
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