AK6003A Datasheet, PDF (14/17 Pages) Asahi Kasei Microsystems – SOFTWARE WRITE PROTECT I2C BUS 2KBIT EEPROM

ASAHI KASEI
[AK6003A]
(3)AC Electrical Characteristics-1
(-40C Ta85C, 1.8VVCC5.5V unless otherwise specified)
Parameter
Symbol
Condition
Min.
SCL Clock Frequency
fSCL
Noise Suppression Time
tI
Constant at SCL,SDA
*5
SCL Low to SDA Data
Out Valid : SDA
tAA1
tAA2
4.5VVCC5.5V
0.2
2.5VVCC<4.5V
0.3
tAA3
1.8VVCC<2.5V
0.3
Time the Bus Must be Free tBUF
4.7
before a New Transmission
can start
Start Condition Hold Time
tHD:STA
4.0
Max. Unit
100
KHz
100
ns
3.5
us
3.5
us
4.5
us
us
us
Clock Low Period
tLOW
4.7
us
Clock High Period
tHIGH
4.0
us
Start Condition Setup Time tSU:STA
4.7
us
Data in Hold Time
tHD:DAT
0
us
Data in Setup Time
tSU:DAT
250
ns
SDA and SCL Rise Time
tR
*5
SDA and SCL Fall Time
tF
*5
Stop Condition Setup Time tSU:STO
1.0
us
0.3
us
4.0
us
Data Out Hold Time
tDH
100
ns
Write Cycle Time
tWR
*4
10
ms
*4: The write cycle time (tWR) is the time from a valid stop condition of a write
sequence to the end of the internal program cycle.
Since the device will not acknowledge during the internal program cycle, this can be
used to determine when the cycle is complete. This feature (ACK polling) can be
used to maximize bus troughtput.
*5: The parameter is periodically sampled and not 100% tested.
DAI03E-01
- 14 -
1999/10