參數(shù)資料
型號(hào): TMPR3927F
廠(chǎng)商: Toshiba Corporation
英文描述: 32 Bit TX39 Family System RISC Microprocessor(32位TX39系列精簡(jiǎn)指令集系統(tǒng)計(jì)算機(jī)微處理器)
中文描述: 32位TX39家庭系統(tǒng)RISC微處理器(32位TX39系列精簡(jiǎn)指令集系統(tǒng)計(jì)算機(jī)微處理器)
文件頁(yè)數(shù): 19/22頁(yè)
文件大小: 272K
代理商: TMPR3927F
TAEC_rev4_11-Jan-2000 19/22
TMPR3927F
TENTATIVE
6.7 AC Characteristics (of PCI interface pins)
6.7.1
AC characteristics table
(PCI_CLK speed = 33MHz, Tc = 0
70
°
C, VDD = 5.0V
±
0.25V, VSS = 0V, CL = 50pF)
Symbol
tcyc
Signal
Description
Min.
30
Max.
Unit
ns
PCI_CLK cycle time
thigh
PCI_CLK high time
11
ns
tlow
PCI_CLK low time
11
ns
-
tval
PCI_CLK slew rate
PCI_CLK to signal valid delay - bused signals
1
2
4
11
V/ns
ns
tval(ptp)
ton
PCI_CLK to signal valid delay - point to point signals
2
12
ns
Float to active delay
2
ns
toff
Active to float delay
28
ns
tsu
Input set up time to PCI_CLK - bused signals
7
ns
tsu(ptp)
th
Input set up time to PCI_CLK - point to point signals
12
ns
Input hold time from PCI_CLK
0
ns
trst
Reset active time after power stable
1
ms
trst-clk
Reset active time after PCI_CLK stable
100
us
trst-off
Reset active to output float delay
40
ns
Symbol
I
OH (AC)
Parameter
Switching Current High
Condition
Min.
-44
Max.
0.8
Unit
mA
0<V
out
<1.4
1.4 < V
out
< 2.4
-44+( V
out
-1.4)/ 0.024
mA
3.1<V
out
<
V
cc
Eqt'n A
(Test Point)
V
out
= 3.1
-142
mA
I
OL (AC)
Switching Current Low
V
out
> 2.2
95
mA
2.2 > V
out
> 0.55
V
out
/ 0.023
mA
0.71>V
out
>
V
cc
Eqt'n B
(Test Point)
V
out
= 0.71
206
mA
I
CL
Low Clamp Output
-5 <V
in
< -1
-25+(Vin+1)/ 0.015
mA
slew
r
Output Rise Slew Rate
0.4V to 2.4V load
1
5
V/ns
slew
f
Output Fall Slew Rate
2.4V to 0.4V load
1
5
V/ns
Please refer to the PCI Local Bus Specification Revision 2.2 for more information.
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