CM108B Datasheet, PDF (14/24 Pages) C-Media Electronics – A Highly Integrated USB Audio Single Chip

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bit[1] Reserved, should be 0
bit[0] Reserved, should be 0
7.1.4 EEPROM SPI interface timing information
CM108B
USB Audio Single Chip
CS
SK
DI
DO(READ)
DO(PROG)
t_CSS
t_SKH
t_SKL
t_DIS
t_DIH
t_PD0
t_SV
t_PD1
STATUS VALID
t_CSH
t_DF
t_DF
Symbol
Parameter
Test Condition*
Min
Typ
Max
Units
f_SK
SK Clock Frequency
2.7V<=Vcc<=5.5V
0
-
200
KHz
t_SKH
SK High Time
2.7V<=Vcc<=5.5V
250
-
-
ns
t_SKL
SK Low Time
2.7V<=Vcc<=5.5V
250
-
-
ns
t_CS
Minimum CS Low Time
2.7V<=Vcc<=5.5V
250
-
-
ns
t_CSS
CS Setup Time
2.7V<=Vcc<=5.5V
50
-
-
ns
t_DIS
DI Setup Time
2.7V<=Vcc<=5.5V
100
-
-
ns
t_CSH
CS Hold Time
2.7V<=Vcc<=5.5V
0
-
-
ns
t_DIH
DI Hold Time
2.7V<=Vcc<=5.5V
100
-
-
ns
t_PD1
Output Delay to"1"
2.7V<=Vcc<=5.5V
-
-
250
ns
t_PD0
Output Delay to"0"
2.7V<=Vcc<=5.5V
-
-
250
ns
t_SV
CS to Status Valid
2.7V<=Vcc<=5.5V
-
-
250
ns
t_DF
CS to DO in High
Impedance
2.7V<=Vcc<=5.5V
-
-
100
ns
t_WP
Write Cycle Time
4.5V<=Vcc<=5.5V
0.1
3
10
ms
* based on ATMEL 93C46 EEPROM data
Datasheet Revision: 1.11
Page 14 / 24
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