HT46R47E/HT46C47E
EEPROM A.C. Characteristics
Standard Mode*
Symbol
f
SK
t
HIGH
t
LOW
t
r
t
f
t
HD:STA
Parameter
Clock Frequency
Clock High Time
Clock Low Time
SDA and SCL Rise Time
SDA and SCL Fall Time
START Condition Hold Time
Note
Note
After this period the
first clock pulse is
generated
Only relevant for
repeated START
condition
¾
¾
¾
¾
Time in which the bus
must be free before a
new transmission can
start
Noise suppression
time
¾
Remark
Min.
¾
¾
¾
¾
4000
4700
¾
¾
4000
Max.
100
¾
¾
1000
300
¾
V
CC
=5V±10%
Min.
¾
600
1200
¾
¾
600
Max.
400
¾
¾
300
300
¾
kHz
ns
ns
ns
ns
ns
Ta=25°C
Unit
t
SU:STA
t
HD:DAT
t
SU:DAT
t
SU:STO
t
AA
START Condition Setup Time
Data Input Hold Time
Data Input Setup Time
STOP Condition Setup Time
Output Valid from Clock
4000
0
200
4000
¾
¾
¾
¾
¾
3500
600
0
100
600
¾
¾
¾
¾
¾
900
ns
ns
ns
ns
ns
t
BUF
Bus Free Time
4700
¾
1200
¾
ns
t
SP
t
WR
Note:
Input Filter Time Constant
(SDA and SCL Pins)
Write Cycle Time
¾
¾
100
5
¾
¾
50
5
ns
ms
These parameters are periodically sampled but not 100% tested
* The standard mode means V
CC
=2.2V to 5.5V
For relative timing, refer to timing diagrams
Rev. 1.30
6
July 13, 2005
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
