Harman Kardon DVD 38 Service Manual page 115

DVD38
Table 5. AC Characteristics
Applicable over recommended operating range from T
100 pF (unless otherwise noted)
Symbol
f
SCL
t
LOW
t
HIGH
t
I
t
AA
t
BUF
t
HD.STA
t
SU.STA
t
HD.DAT
t
SU.DAT
t
R
t
F
t
SU.STO
t
DH
t
WR
(2)
Endurance
Note: 1. This parameter is characterized and is not 100% tested (T
2. This parameter is characterized.
Device Operation
Parameter
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
(1)
Noise Suppression Time
Clock Low to Data Out Valid
Time the bus must be free before
a new transmission can start
Start Hold Time
Start Set-up Time
Data In Hold Time
Data In Set-up Time
(2)
Inputs Rise Time
(2)
Inputs Fall Time
Stop Set-up Time
Data Out Hold Time
Write Cycle Time
5.0V, 25°C, Page Mode
CLOCK and DATA TRANSITIONS: The SDA pin is normally pulled high with an exter-
nal device. Data on the SDA pin may change only during SCL low time periods (see to
Figure 4 on page 7). 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 to Figure 5 on page 7).
STOP CONDITION: A low-to-high transition of SDA with SCL high is a stop condition.
After a read sequence, the stop command will place the EEPROM in a standby power
mode (see Figure 5 on page 7).
ACKNOWLEDGE: All addresses and data words are serially transmitted to and from the
EEPROM in 8-bit words. The EEPROM sends a "0" to acknowledge that it has received
each word. This happens during the ninth clock cycle.
STANDBY MODE: The AT24C01A/02/04/08A/16A features a low-power standby mode
which is enabled: (a) upon power-up and (b) after the receipt of the STOP bit and the
completion of any internal operations.
AT24C01A/02/04/08A/16A
= −40°C to +125°C, V
A
AT24C01A/02/04/08A/16A
Min
1.2
0.6
0.1
1.2
(2)
0.6
0.6
0
100
0.6
50
1M
= 25°C).
A
115
= +2.7V to +5.5V, CL = 1 TTL Gate and
CC
Max
400
50
0.9
300
300
5
harman/kardon
Units
kHz
µs
µs
ns
µs
µs
µs
µs
µs
ns
ns
ns
µs
ns
ms
Write Cycles