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參數(shù)資料
| 型號(hào)： | 74F646BLMX |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Octal Transceiver/Register with TRI-STATE Outputs |
| 中文描述： | 八路收發(fā)器/注冊(cè)的三態(tài)輸出 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 217K |
| 代理商： | 74F646BLMX |
’F646B
AC Electrical Characteristics
74F
54F
74F
T
A
e a
25
§
C
V
CC
e a
5.0V
C
L
e
50 pF
T
A
, V
CC
e
Mil
C
L
e
50 pF
T
A
, V
CC
e
Com
C
L
e
50 pF
Symbol
Parameter
Units
Min
Max
Min
Max
Min
Max
f
max
Maximum Clock Frequency
165
150
MHz
t
PLH
t
PHL
Propagation Delay
Clock to Bus
2.5
3.0
7.0
7.5
2.5
3.0
8.0
8.0
ns
t
PLH
t
PHL
Propagation Delay
Bus to Bus
2.0
2.0
6.0
6.0
2.0
2.0
7.0
7.0
ns
t
PLH
t
PHL
Propagation Delay
SBA or SAB to A or B
2.5
2.5
7.5
7.5
2.5
2.5
8.5
8.5
ns
t
PZH
t
PZL
Enable Time
OE to A or B
2.5
2.5
6.5
9.0
2.5
2.5
8.0
10.0
ns
t
PHZ
t
PLZ
Disable Time
OE to A or B
1.5
2.0
6.5
7.0
1.5
2.0
7.5
8.5
ns
t
PZH
t
PZL
Enable Time
DIR to A or B
2.0
3.0
7.0
9.5
2.0
3.0
8.5
10.0
ns
t
PHZ
t
PLZ
Disable Time
DIR to A or B
1.5
2.5
7.5
8.5
1.5
2.5
8.5
9.5
ns
’F646B
AC Operating Requirements
74F
54F
74F
Symbol
Parameter
T
A
e a
25
§
C
V
CC
e a
5.0V
T
A
, V
CC
e
Mil
T
A
, V
CC
e
Com
Units
Min
Max
Min
Max
Min
Max
t
s
(H)
t
s
(L)
Setup Time, HIGH or LOW
Bus to Clock
5.0
5.0
4.0
4.0
ns
t
h
(H)
t
h
(L)
Hold Time, HIGH or LOW
Bus to Clock
1.5
1.5
1.5
1.5
ns
t
w
(H)
t
w
(L)
Clock Pulse Width
HIGH or LOW
5.0
5.0
5.0
5.0
ns
Ordering Information
The device number is used to form part of a simplified purchasing code where the package type and temperature range are
defined as follows:
74F
646/646B/648
S
C
X
Temperature Range Family
74F
e
Commercial
54F
e
Military
Special Variations
QB
e
Military grade device with
environmental and burn-in
processing
X
e
Devices shipped in 13
×
reel
Device Type
Package Code
SP
e
Slim Plastic DIP
SD
e
Slim Ceramic DIP
S
e
Small Outline (SOIC)
MSA
e
Shrink Small Outline SOIC EIAJ Type II (M646 only)
L
e
Leadless Chip Carrier
F
e
Flatpak
Temperature Range
C
e
Commercial
(0
§
C to
a
70
§
C)
M
e
Military
(
b
55
§
C to
a
125
§
C)
8
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|---|---|
| 74F646BSCQB | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSDMSACQB | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSDMSACX | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSDMSAMQB | Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSDMSAMX | Octal Transceiver/Register with TRI-STATE Outputs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74F646BSC | 功能描述:IC BUS TRANSCVR 3-ST 8BIT 24SOIC RoHS:是 類別:集成電路 (IC) >> 邏輯 - 緩沖器，驅(qū)動(dòng)器，接收器，收發(fā)器 系列:74F 標(biāo)準(zhǔn)包裝:1,000 系列:74ABT 邏輯類型:寄存收發(fā)器，非反相 元件數(shù):1 每個(gè)元件的位元數(shù):8 輸出電流高，低:32mA，64mA 電源電壓:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) |
| 74F646BSCQB | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSCX | 功能描述:總線收發(fā)器 Oct Bus Tran and 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 |
| 74F646BSDMSACQB | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Octal Transceiver/Register with TRI-STATE Outputs |
| 74F646BSDMSACX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Octal Transceiver/Register with TRI-STATE Outputs |
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