參數(shù)資料
型號(hào)： 74F399SC
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： Quad 2-Port Register
中文描述： F/FAST SERIES, POSITIVE EDGE TRIGGERED D FLIP-FLOP, COMPLEMENTARY OUTPUT, PDSO16
封裝： 0.150 INCH, MS-012, SOIC-16
文件頁數(shù)： 2/10頁
文件大?。?/td> 88K
代理商： 74F399SC
Philips Semiconductors
Product specification
74F398*
,74F399
Registers
74F398 Quad 2-Port Register with True and Complementary Outputs
74F399 Quad 2-Port Register
2
1999 Jan 08
853–0028 20616
* Discontinued part. Please see the Discontinued Products List..
FEATURES
Select inputs from two data sources
Fully positive edge-triggered
Both True and Complementary outputs–74F398
DESCRIPTION
The 74F398 and 74F399 are the logical equivalent of a quad 2-input
multiplexer feeding into four edge-triggered flip-flops. A common
Select input determines which of two 4-bit words is accepted. The
selected data enters the flip-flops on the rising edge of the clock.
The 74F399 is the 16-pin version of the 74F398, with only the true
(Qn) outputs of the flip-flops available.
The 74F398 and 74F399 are high speed quad 2-port registers. They
select 4 bits of data from either of two sources (Ports) under control
of a common select input (S). The selected data is transferred to a
4-bit output register synchronous with the Low-to-High transition of
the Clock input (CP). The 4-bit D-type output register is fully
edge-triggered. The Data inputs (I0n, I1n) and Select input (S) must
be stable only a setup time prior to and hold time after the
Low-to-High transition of the Clock input for predictable operation.
The 74F398 has both Q and Q outputs.
TYPE
TYPICAL f
MAX
TYPICAL SUPPLY CURRENT
(TOTAL)
74F398
120MHz
25mA
74F399
120MHz
22mA
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL RANGE
V
CC
= 5V
±
10%,
T
amb
= 0
°
C to +70
°
C
PKG DWG #
16-pin plastic DIP
N74F399N
SOT38-4
16-pin plastic SO
N74F399D
SOT109-1
PIN CONFIGURATION – 74F398
20
19
18
17
16
15
14
7
6
5
4
3
2
1
I0b
V
CC
I1d
I1c
I0c
I0d
Qd
Qd
S
Qa
I1b
Qa
I0a
I1a
SF00947
13
8
Qb
Qc
12
9
Qb
Qc
11
10
GND
CP
PIN CONFIGURATION – 74F399
16
15
14
13
12
11
6
5
4
3
2
1
I0b
V
CC
I1d
I1c
I0c
I0d
Qd
S
Qa
I1b
I0a
I1a
SF00951
10
7
Qb
Qc
9
8
GND
CP
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F (U.L.)
HIGH/LOW
LOAD VALUE
HIGH/LOW
I0a, I0b, I0c, I0d
Data inputs from source 0
1.0/1.0
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
20
μ
A/0.6mA
I1a, I1b, I1c, I1d
Data inputs from source 1
1.0/1.0
S
Common Select input
1.0/1.0
CP
Clock input (active rising edge)
1.0/1.0
Qa, Qb, Qc, Qd
Register true outputs
50/33
1.0mA/20mA
Qa, Qb, Qc, Qd
NOTE:
One (1.0) FAST unit load is defined as: 20
μ
A in the High state and 0.6mA in the Low state.
Register complementary outputs (74F398)
50/33
1.0mA/20mA
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
74F399SC_Q 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 2-Port Register RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
74F399SCX 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 2-Port Register RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
74F399SJ 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 2-Port Register RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
74F399SJ_Q 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 2-Port Register RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
74F399SJX 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Quad 2-Port Register RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray
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