AT24C11_14 Datasheet, PDF (4/13 Pages) ATMEL Corporation – Low Voltage and Standard Voltage Operation

Table 2-3. AC Characteristics
Applicable over recommended operating range from T_A = –40°C to +125°C, V_CC = +2.7V to
+5.5V, CL = 1 TTL Gate and 100 pF (unless otherwise noted)
2.7V, 5.0V
Symbol
Parameter
Min
Max
Units
f_SCL
t_LOW
t_HIGH
t_AA
t_BUF
Clock Frequency, SCL
1000
kHz
Clock Pulse Width Low
0.4
µs
Clock Pulse Width High
0.4
µs
Clock Low to Data Out Valid
0.05
0.55
µs
Time the bus must be free before a new
transmission can start⁽¹⁾
0.5
µs
t_HD.STA
t_SU.STA
t_HD.DAT
t_SU.DAT
t_R
t_F
t_SU.STO
t_DH
t_WR
Endurance⁽¹⁾
Start Hold Time
Start Set-up Time
Data In Hold Time
Data In Set-up Time
Inputs Rise Time⁽¹⁾
Inputs Fall Time⁽¹⁾
Stop Set-up Time
Data Out Hold Time
Write Cycle Time
5.0V, 25°C, Page Mode
0.25
0.6
0
100
0.25
50
1M
Note: 1. This parameter is ensured by characterization only.
µs
µs
µs
ns
0.3
µs
100
ns
µs
ns
5
ms
Write
Cycles
3. Device Operation
CLOCK and DATA TRANSITIONS: The SDA pin is normally pulled high with an external
device. Data on the SDA pin may change only during SCL low time periods (see Figure 3-3 on
page 6). Data changes during SCL high periods will indicate a start or stop condition as defined
below.
START CONDITION: A high-to-low transition of SDA with SCL high is a start condition which
must precede any other command (see Figure 3-4 on page 6).
STOP CONDITION: A low-to-high transition of SDA with SCL high is a stop condition which ter-
minates all communications. After a read sequence, the stop command will place the EEPROM
in a standby power mode (see Figure 3-4 on page 6).
ACKNOWLEDGE: All addresses and data words are serially transmitted to and from the
EEPROM in 8-bit words. Any device on the system bus receiving data (when communicating
with the EEPROM) must pull the SDA bus low to acknowledge that it has successfully received
each word. This must happen during the ninth clock cycle after each word received and after all
other system devices have freed the SDA bus. The EEPROM will likewise acknowledge by pull-
ing SDA low after receiving each address or data word (see Figure 3-5 on page 6).
4 AT24C11
5093E–SEEPR–8/07