參數資料
型號: 74F646BFMX
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/注冊的三態(tài)輸出
文件頁數: 7/12頁
文件大?。?/td> 217K
代理商: 74F646BFMX
’F646/’F648
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
90
75
90
MHz
t
PLH
t
PHL
Propagation Delay
Clock to Bus
2.0
2.0
7.0
8.0
2.0
2.0
8.5
9.5
2.0
2.0
8.0
9.0
ns
t
PLH
t
PHL
Propagation Delay
Bus to Bus (’F646)
1.0
1.0
7.0
6.5
1.0
1.0
8.0
8.0
1.0
1.0
7.5
7.0
ns
t
PLH
t
PHL
Propagation Delay
Bus to Bus (’F648)
2.0
1.0
8.5
7.5
1.0
1.0
10.0
9.0
2.0
1.0
9.0
8.0
ns
t
PLH
t
PHL
Propagation Delay
SBA or SAB to A or B
2.0
2.0
8.5
8.0
2.0
2.0
11.0
10.0
2.0
2.0
9.5
9.0
ns
t
PZH
t
PZL
Enable Time
OE to A or B
2.0
2.0
8.5
12.0
2.0
2.0
10.0
13.5
2.0
2.0
9.0
12.5
ns
t
PHZ
t
PLZ
Disable Time
OE to A or B
1.0
2.0
7.5
9.0
1.0
2.0
9.0
11.0
1.0
2.0
8.5
9.5
ns
t
PZH
t
PZL
Enable Time
DIR to A or B
2.0
2.0
14.0
13.0
2.0
2.0
16.0
15.0
2.0
2.0
15.0
14.0
ns
t
PHZ
t
PLZ
Disable Time
DIR to A or B
1.0
2.0
9.0
11.0
1.0
2.0
10.0
12.0
1.0
2.0
9.5
11.5
ns
’F646/’F648
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
5.0
5.0
5.0
5.0
ns
t
h
(H)
t
h
(L)
Hold Time, HIGH or LOW
Bus to Clock
2.0
2.0
2.5
2.5
2.0
2.0
ns
t
w
(H)
t
w
(L)
Clock Pulse Width
HIGH or LOW
5.0
5.0
5.0
5.0
5.0
5.0
ns
7
相關PDF資料
PDF描述
74F646BLCQB Octal Transceiver/Register with TRI-STATE Outputs
74F646BLCX Octal Transceiver/Register with TRI-STATE Outputs
74F646BLMQB Octal Transceiver/Register with TRI-STATE Outputs
74F646BLMX Octal Transceiver/Register with TRI-STATE Outputs
74F646BSCQB Octal Transceiver/Register with TRI-STATE Outputs
相關代理商/技術參數
參數描述
74F646BLCQB 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Octal Transceiver/Register with TRI-STATE Outputs
74F646BLCX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Octal Transceiver/Register with TRI-STATE Outputs
74F646BLMQB 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Octal Transceiver/Register with TRI-STATE Outputs
74F646BLMX 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Octal Transceiver/Register with TRI-STATE Outputs
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,驅動器,接收器,收發(fā)器 系列:74F 標準包裝:1,000 系列:74ABT 邏輯類型:寄存收發(fā)器,非反相 元件數:1 每個元件的位元數: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) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR)