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| 型號： | CY74FCT399TSOIC |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Quad 2-Input Register |
| 中文描述： | 四2輸入注冊 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大小： | 262K |
| 代理商： | CY74FCT399TSOIC |
CY74FCT399T
QUAD 2-INPUT REGISTER
SCCS024A – MARCH 1994 – REVISED OCTOBER 2001
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Function, Pinout, and Drive Compatible
With FCT and F Logic
Reduced V
OH
(Typically = 3.3 V) Versions of
Equivalent FCT Functions
Edge-Rate Control Circuitry for
Significantly Improved Noise
Characteristics
I
off
Supports Partial-Power-Down Mode
Operation
Matched Rise and Fall Times
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
Fully Compatible With TTL Input and
Output Logic Levels
64-mA Output Sink Current
32-mA Output Source Current
description
The CY74FCT399T is a high-speed quad 2-input register that selects four bits of data from either of two sources
(ports) under control of a common select (S) input. Selected data are transferred to a 4-bit output register
synchronous with the low-to-high transition of the clock (CP) input. The 4-bit D-type output register is fully edge
triggered. The data inputs (I
0X
, I
1X
) and S input must be stable only one setup time prior to, and hold time after,
the low-to-high transition of CP for predictable operation. The CY74FCT399T has noninverted outputs.
This device is fully specified for partial-power-down applications using I
off
. The I
off
circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
PIN DESCRIPTION
NAME
DESCRIPTION
S
Common select input
CP
Clock-pulse input (active rising edge)
I0
I1
Q
Data inputs from source 0
Data inputs from source 1
Register noninverted outputs
ORDERING INFORMATION
TA
PACKAGE
SPEED
(ns)
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC – SO
Tube
6.1
CY74FCT399CTSOC
FCT399C
–40
°
C to 85
°
C
Tape and reel
6.1
CY74FCT399CTSOCT
SOIC – SO
Tube
Tape and reel
7
7
CY74FCT399ATSOC
CY74FCT399ATSOCT
FCT399A
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
Copyright
2001, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
S
Q
A
I
0A
I
1A
I
1B
I
0B
Q
B
GND
V
CC
Q
D
I
0D
I
1D
I
1C
I
0C
Q
C
CP
SO PACKAGE
(TOP VIEW)
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| CY74FCT480ATPC | 功能描述:奇偶功能 Dual 8B Parity Gen/ Checker RoHS:否 制造商:Texas Instruments 電路數(shù)量:1 位數(shù):9 邏輯系列:74AC 封裝 / 箱體:SOIC-14 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:263 ns 工作電源電壓:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作溫度:+ 70 C 最小工作溫度:- 55 C 封裝:Reel |
| CY74FCT480ATPCE4 | 功能描述:奇偶功能 Dual 8B Parity Gen/ Checker RoHS:否 制造商:Texas Instruments 電路數(shù)量:1 位數(shù):9 邏輯系列:74AC 封裝 / 箱體:SOIC-14 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:263 ns 工作電源電壓:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作溫度:+ 70 C 最小工作溫度:- 55 C 封裝:Reel |
| CY74FCT480ATQCT | 功能描述:奇偶功能 Dual 8B Parity Gen/ Checker RoHS:否 制造商:Texas Instruments 電路數(shù)量:1 位數(shù):9 邏輯系列:74AC 封裝 / 箱體:SOIC-14 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:263 ns 工作電源電壓:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作溫度:+ 70 C 最小工作溫度:- 55 C 封裝:Reel |
| CY74FCT480ATQCTE4 | 功能描述:奇偶功能 Dual 8B Parity Gen/ Checker RoHS:否 制造商:Texas Instruments 電路數(shù)量:1 位數(shù):9 邏輯系列:74AC 封裝 / 箱體:SOIC-14 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:263 ns 工作電源電壓:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作溫度:+ 70 C 最小工作溫度:- 55 C 封裝:Reel |
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