24C01B Datasheet, PDF (3/13 Pages) Microchip Technology – 1K/2K 5.0V I 2 C ™ Serial EEPROM

24C01B/02B
TABLE 1-2: AC CHARACTERISTICS
All Parameters apply across the
specified operating ranges unless
otherwise noted
Vcc = 4.5V to 5.5V
Automotive (E): Tamb = -40˚C to +125˚C,
Parameter
Symbol Min. Max. Units
Remarks
Clock frequency
FCLK
—
100 kHz
Clock high time
THIGH
4000
—
ns
Clock low time
TLOW
4700
—
ns
SDA and SCL rise time
TR
—
1000 ns (Note 1)
SDA and SCL fall time
TF
—
300
ns (Note 1)
START condition hold time
THD:STA 4000
—
ns After this period the first clock pulse is
generated
START condition setup time
TSU:STA 4700
—
ns Only relevant for repeated
START condition
Data input hold time
THD:DAT
0
—
ns (Note 2)
Data input setup time
TSU:DAT
250
—
ns
STOP condition setup time
TSU:STO 4000
—
ns
Output valid from clock
TAA
—
3500 ns (Note 2)
Bus free time
TBUF
4700
—
ns Time the bus must be free before a new
transmission can start
Output fall time from VIH
minimum to VIL maximum
TOF
—
250
ns (Note 1), CB ≤ 100 pF
Input filter spike suppression
TSP
—
50
ns (Note 3)
(SDA and SCL pins)
Write cycle time
TWR
—
10
ms Byte or Page mode
Endurance
—
1M
— 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 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 Schmitt trigger inputs which provide improved noise
spike suppression. This eliminates the need for a TI specification for standard operation.
4: This parameter is not tested but guaranteed by characterization. For endurance estimates in a specific
application, please consult the Total Endurance Model which can be obtained on our BBS or website.
FIGURE 1-2: BUS TIMING DATA
TF
TLOW
THIGH
SCL
TSU:STA
SDA
IN
TSP
THD:STA
THD:DAT
SDA
OUT
TAA
THD:STA
TAA
TR
TSU:DAT
TSU:STO
TBUF
© 1997 Microchip Technology Inc.
Preliminary
DS21233A-page 3