ht82k74e Holtek Semiconductor Inc., ht82k74e Datasheet - Page 6

• Manufacturer Part Number: ht82k74e
• Description: 27mhz Keyboard/ Mouse Tx 8-bit Mcu
• Manufacturer: Holtek Semiconductor Inc.

EEPROM A.C. Characteristics
Note:
Rev. 1.00
f
t
t
t
t
t
t
t
t
t
t
t
t
t
Symbol
SK
HIGH
LOW
r
f
HD:STA
SU:STA
HD:DAT
SU:DAT
SU:STO
AA
BUF
SP
WR
**
**
These parameters are periodically sampled but not 100% tested
* The standard mode means V
** For related timing, refer to timing diagrams in the EEPROM Data Memory section
Clock Frequency
Clock High Time
Clock Low Time
SDA and SCL Rise Time
SDA and SCL Fall Time
START Condition Hold Time
START Condition Setup Time
Data Input Hold Time
Data Input Setup Time
STOP Condition Setup Time
Output Valid from Clock
Bus Free Time
Input Filter Time Constant
(SDA and SCL Pins)
Write Cycle Time
Parameter
DD
=2.2V to 3.3V
After this period the first clock
pulse is generated
Only relevant for repeated
START condition
Time in which the bus must be free be-
fore a new transmission can start
Noise suppression time
6
Remark
HT82K74E/HT82K74EE
Standard Mode*
4000
4700
4000
4000
4000
4700
Min.
200
0
December 15, 2009
Max.
1000
3500
100
300
100
5
Ta=25 C
Unit
kHz
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns