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參數(shù)資料
| 型號(hào)： | DM74ALS646WM |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal 3-STATE Bus Transceiver and Register |
| 中文描述： | ALS SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24 |
| 封裝： | 0.300 INCH, MS-013, SOIC-24 |
| 文件頁(yè)數(shù)： | 4/6頁(yè) |
| 文件大小： | 56K |
| 代理商： | DM74ALS646WM |
www.fairchildsemi.com
4
D
Switching Characteristics
over recommended operating free air temperature range
Note 5:
These parameters are measured with the internal output state of the storage register opposite to that of the bus input.
Symbol
Parameter
Conditions
From (Input)
To (Output)
CBA or CAB
to A or B
CBA or CAB
Min
Max
Units
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
V
CC
=
4.5V to 5.5V,
C
L
=
50 pF,
R
1
=
R
2
=
500
,
T
A
=
Min to Max
10
30
ns
t
PHL
5
17
ns
HIGH-to-LOW Level Output
Propagation Delay Time
LOW-to-HIGH Level Output
to A or B
A or B to
B or A
t
PLH
5
20
ns
t
PHL
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
A or B to
B or A
SBA or SAB
3
12
ns
t
PLH
LOW-to-HIGH Level Output
(with A or B LOW) (Note 5)
Propagation Delay Time
to A or B
12
35
ns
t
PHL
SBA or SAB
HIGH-to-LOW Level Output
(with A or B LOW) (Note 5)
Propagation Delay Time
to A or B
5
20
ns
t
PLH
SBA or SAB
LOW-to-HIGH Level Output
(with A or B HIGH) (Note 5)
Propagation Delay Time
to A or B
6
25
ns
t
PHL
SBA or SAB
HIGH-to-LOW Level Output
(with A or B HIGH) (Note 5)
to A or B
5
20
ns
t
PZH
Output Enable Time
G to
A or B
3
17
ns
to HIGH Level Output
t
PZL
Output Enable Time
G to
5
20
ns
to LOW Level Output
A or B
t
PHZ
Output Disable Time
G to
A or B
1
10
ns
from HIGH Level Output
t
PLZ
Output Disable Time
G to
2
16
ns
from LOW Level Output
Output Enable Time
to HIGH Level Output
A or B
DIR to
A or B
t
PZH
6
30
ns
t
PZL
Output Enable Time
to LOW Level Output
Output Disable Time
DIR to
A or B
DIR to
5
25
ns
t
PHZ
1
10
ns
from HIGH Level Output
Output Disable Time
from LOW Level Output
A or B
DIR to
A or B
t
PLZ
2
16
ns
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74ALS646WMX | 功能描述:總線收發(fā)器 Oct 3-STATE Tran Reg RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| DM74ALS646WMX | 制造商:Fairchild Semiconductor Corporation 功能描述:IC UNIVERSAL BUS FUNCTIONS LOGIC ROHS C |
| DM74ALS648 WAF | 制造商:Texas Instruments 功能描述: |
| DM74ALS648WM | 制造商:Texas Instruments 功能描述: |
| DM74ALS648WMX | 制造商:Texas Instruments 功能描述: |
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