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24AA164 Datasheet, PDF (3/12 Pages) Microchip Technology – 16K 1.8V Cascadable I2CTM Serial EEPROM | |||
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24AA164
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
â
100
â
400 kHz
Clock high time
THIGH
4000
â
600
â
ns
Clock low time
TLOW
4700
â
1300
â
ns
SDA and SCL rise time
TR
â
1000
â
300 ns (Note 1)
SDA and SCL fall time
TF
â
300
â
300 ns (Note 1)
START condition hold
THD:STA 4000
â
600
â
ns After this period the ï¬rst
time
clock pulse is generated
START condition setup TSU:STA 4700
â
600
â
ns Only relevant for repeated
time
START condition
Data input hold time
THD:DAT
0
â
0
â
ns
Data input setup time
TSU:DAT
250
â
100
â
ns
STOP condition setup
TSU:STO 4000
â
600
â
ns
time
Output valid from clock
TAA
â
3500
â
900 ns (Note 2)
Bus free time
TBUF
4700
â
1300
â
ns Time the bus must be free
before a new transmission
can start
Output fall time from VIH
TOF
min to VIL max
â
250 20 + 0.1 250
ns (Note 1), CB ⤠100 pF
CB
Input ï¬lter spike suppres- TSP
â
50
â
50
ns (Note 3)
sion (SDA and SCL pins)
Write cycle time
TWR
â
10
â
10
ms Byte or Page mode
Endurance
â
1M
â
1M
â cycles 25°C, Vcc = 5.0V, 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 undeï¬ned 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 =speciï¬cations are due to new Schmitt trigger inputs which provide improved
noise and spike suppression. This eliminates the need for a TI speciï¬cation for standard operation.
4: This parameter is not tested but guaranteed by characterization. For endurance estimates in a speciï¬c appli-
cation, please consult the Total Endurance Model which can be obtained on our website.
FIGURE 1-2: BUS TIMING DATA
TF
TR
THIGH
TLOW
SCL
TSU:STA
THD:STA
THD:DAT
TSU:DAT TSU:STO
SDA
IN
TSP
TAA
TAA
TBUF
SDA
OUT
© 1999 Microchip Technology Inc.
DS21100F-page 3
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