AK6004A_02 Datasheet, PDF (13/16 Pages) Asahi Kasei Microsystems – I2C bus 4K / 16Kbit Serial CMOS EEPROM

ASAHI KASEI
[AK6004A/08A]
(3) A.C. ELECTRICAL CHARACTERISTICS 1: Standard mode
(1.8V≤VCC≤5.5V, -40°C≤Ta≤85°C, unless otherwise specified)
Parameter
SCK Clock Frequency
Noise Suppression Time
Constant at SCL, SDA *5
SCL Low to
SDA Data Out Valid: SDA
Time the Bus Must be Free
before a New Transmission
can start
Symbol
fSCL
tI
tAA1
tAA2
tAA3
tBUF
Condition
4.5V≤VCC≤5.5V
2.5V≤VCC<4.5V
1.8V≤VCC<2.5V
Min.
Max.
Unit
100
KHz
100
ns
0.2
3.5
µs
0.3
3.5
µs
0.3
4.5
µs
4.7
µs
Start Condition Hold Time tHD:STA
4.0
µs
Clock Low Period
tLOW
4.7
µs
Clock High Period
tHIGH
4.0
µs
Start Condition Setup Time tSU:STA
4.7
µs
Data in Hold Time
tHD:DAT
0
µs
Data in Setup Time
tSU:DAT
250
ns
SDA and SCL Rise Time
*5
SDA and SCL Fall Time
*5
Stop Condition Setup Time
tR
tF
tSU:STO
1.0
µs
0.3
µs
4.0
µs
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 throughput.
*5: The parameter is periodically sampled and not 100% tested.
DAI01E-02
- 13 -
2002/11