co661al-l Connect One Ltd., co661al-l Datasheet - Page 27

• Manufacturer Part Number: co661al-l
• Description: The Co661al-l Ichip Lan? Internet Controller? Is Part Of A Family Of Intelligent Peripheral Devices That Provides Internet Connectivity Solutions To A Myriad Of Embedded Devices
• Manufacturer: Connect One Ltd.

6.2 Interface Timing and Waveforms
6.2.1 Switching Characteristics
1
2
iChip LAN CO661AL-L Datasheet
Fall time is from 2.3V to 1V.
Rise time is from 1V to 2.3V.
Clock Out frequency
Clock Out period
X2 falling to address or chip
select change
X2 rising to read active
X2 falling to read inactive
Data setup before read high
Data setup after read high
X2 rising to write active
X2 rising to data valid
X2 rising to write inactive
Data out valid after write high
X2 fall time
X2 rise time
X2 LOW time
X2 HIGH time
X2 to CLKO skew
Reset pulse
Read rising to input parallel
buffer full
Write rising to output parallel
buffer empty
Parameter
1
2
Table 6-3 Switching Characteristics
Tdovaw
Symbol
Tdsbrh
Tdsarh
Txrwa
Twrbe
Tchck
Txrdv
Txrwi
Txfac
Tckhl
Tcklh
Tclck
Tcico
Txrra
Trrbf
Txfri
Fclk
Tclk
Trst
18.43
Min.
4.2
4.1
4.1
4.1
2.1
4.2
Electrical/Mechanical Specifications
24
24
9
3
5
5
1
0
0
Typical
18.432
1/Fck
27
27
18.434
Max.
8.6
8.6
8.2
8.6
8.2
6.6
10
30
30
5
5
Units
MHz
ms
us
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
6-2