24AA65/24LC65/24C65
TABLE 1-2:
AC CHARACTERISTICS
VCC = 1.8V-6.0V VCC = 4.5-6.0V
STD. Mode FAST Mode
Parameter
Symbol
Units
Remarks
Min
Max
Min
Max
Clock frequency
FCLK
THIGH
TLOW
TR
—
4000
4700
—
100
—
—
600
1300
—
400
—
kHz
ns
Clock high time
Clock low time
—
—
ns
SDA and SCL rise time
SDA and SCL fall time
Start condition setup time
1000
300
—
300
300
—
ns
(Note 1)
TF
—
—
ns
(Note 1)
THD:STA 4000
600
ns
After this period the first
clock pulse is generated
Start condition setup time
TSU:STA
4700
—
600
—
ns
Only relevant for
repeated Start condition
Data input hold time
Data input setup time
Stop condition setup time
Output valid from clock
Bus free time
THD:DAT
TSU:DAT
TSU:STO
TAA
0
—
—
0
—
—
ns
ns
ns
ns
ns
250
4000
—
100
600
—
—
—
3500
—
900
—
(Note 2)
TBUF
4700
1300
Time the bus must be
free before a new
transmission can start
Output fall time from VIH min to TOF
VIL max
—
50
—
250
—
5
20 + 0.1
CB
250
—
5
ns
ns
(Note 1), CB ≤ 100 pF
Input filter spike suppression
(SDA and SCL pins)
TSP
50
(Note 3)
Write cycle time
TWR
—
ms/page (Note 4)
Endurance
High Endurance Block
Rest of Array
10M
1M
—
—
10M
1M
—
—
cycles 25°C, (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 undefined 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 specifications are due to new Schmitt Trigger inputs which provide improved
noise and spike suppression. This eliminates the need for a Ti specification 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 ensured by characterization. For endurance estimates in a specific
application, please consult the Total Endurance™ Model which can be downloaded at www.microchip.com.
FIGURE 1-2:
BUS TIMING DATA
TF
TR
THIGH
TLOW
THD:STA
SCL
TSU:STA
THD:DAT
TSU:DAT
TSU:STO
SDA
IN
TSP
TBUF
TAA
TAA
SDA
OUT
DS21073J-page 4
2003 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
