參數(shù)資料
型號： AM79C974KCW
廠商： ADVANCED MICRO DEVICES INC
元件分類： 微控制器/微處理器
英文描述： PCnetTM-SCSI Combination Ethernet and SCSI Controller for PCI Systems
中文描述： 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP132
封裝： PLASTIC, QFP-132
文件頁數(shù)： 99/153頁
文件大?。?/td> 838K
代理商： AM79C974KCW
P R E L I M I N A R Y
AMD
99
Am79C974
AC SWITCHING CHARACTERISTICS (continued)
SCSI Interface
Parameter
No.
Symbol
Parameter Description
Single Ended: Asynchronous Initiator Transmit, See Figure 30
7
t
S
Data to
ACK
Set Up Time
8
t
PD
REQ
to Data Delay
9
t
PD
REQ
to
ACK
Delay
10
t
PD
REQ
to
ACK
Delay
Single Ended: Asynchronous Initiator Receive, See Figure 31
11
t
PD
REQ
to
ACK
Delay
12
t
PD
REQ
to
ACK
Delay
13
t
S
Data to
REQ
Set Up Time
14
t
H
REQ
to Data Hold Time
Normal SCSI: (Single Ended) Synchronous Initiator Transmit, See Figure 32
15
t
S
Data to
REQ
or
ACK
Set Up Time
16
t
PWL
REQ
or
ACK
Pulse Width Low
17
t
PWH
REQ
or
ACK
Pulse Width High
18
t
H
ACK
or
REQ
to Data Hold Time
Fast SCSI: (Single Ended) Synchronous Initiator Transmit, See Figure 32
15
t
S
Data to
REQ
or
ACK
Set Up Time
16
t
PWL
REQ
or
ACK
Pulse Width Low
17
t
PWH
REQ
or
ACK
Pulse Width High
18
t
H
ACK
or
REQ
to Data Hold Time
Synchronous Initiator Receive, See Figure 33
19
t
PWL
REQ
Pulse Width Low
19
t
PWL
ACK
Pulse Width Low
20
t
PWH
REQ
Pulse Width High
20
t
PWH
ACK
Pulse Width High
21
t
S
Data to
REQ
or
ACK
Set Up Time
22
t
H
REQ
or
ACK
to Data Hold Time
SCSI Bus Lines
t
RISE
**
Rise Time, 10% to 90%
Test Conditions
Min
Max
Unit
60
5
ns
ns
ns
ns
50
50
50
50
ns
ns
ns
ns
10
18
55*
ns
90*
90*
100*
ns
ns
ns
25*
ns
30*
30*
35*
ns
ns
ns
27
20
20
20
10
ns
ns
ns
ns
ns
15
ns
SCSI Termination
+ 20 pF
SCSI Termination
+ 20 pF
SCSI Termination
+ 20 pF
SCSI Termination
+ 20 pF
8
20
ns
t
FALL
**
Fall Time, 10% to 90%
5
12
ns
dV
H
/dt**
Slew Rate, Low to High
0.15
0.50
V/ns
dV
L
/dt**
Slew Rate, High to Low
0.25
0.80
V/ns
* The minimum values have a wide range since they depend on the Synchronization latency. The synchronization latency, in
turn, depends on the operating frequency of the device.
**These parameters are not 100% tested, but are evaluated at initial characterization and at any time the design is modified
where these parameters may be affected.
相關(guān)PDF資料
PDF描述
AM79C975 PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C973 PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C975 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:PCnet⑩-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
AM79C975BKC\\W 制造商:Advanced Micro Devices 功能描述:
AM79C975BKC\W 制造商:Advanced Micro Devices 功能描述:
AM79C975BKD\\W 制造商:Advanced Micro Devices 功能描述:
AM79C975BKD\W 制造商:Advanced Micro Devices 功能描述:PCnet-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY 制造商:AMD (Advanced Micro Devices) 功能描述:PCnet-FAST III Single-Chip 10/100 Mbps PCI Ethernet Controller with Integrated PHY
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