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參數資料
| 型號： | SN74AS374DWRE4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發器 |
| 英文描述： | AS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | GREEN, PLASTIC, SOIC-20 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 721K |
| 代理商： | SN74AS374DWRE4 |
SN54ALS374A, SN54AS374, SN74ALS374A, SN74AS374
OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
WITH 3-STATE OUTPUTS
SDAS167C – APRIL 1982 – REVISED NOVEMBER 1999
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D D-Type Flip-Flops in a Single Package With
3-State Bus Driving True Outputs
D Full Parallel Access for Loading
D Buffered Control Inputs
D Package Options Include Plastic
Small-Outline (DW) Packages, Ceramic
Chip Carriers (FK), and Standard Plastic (N)
and Ceramic (J) DIPs
description
These octal D-type edge-triggered flip-flops
feature 3-state outputs designed specifically for
driving
highly
capacitive
or
relatively
low-impedance loads. They are particularly
suitable for implementing buffer registers, I/O
ports, bidirectional bus drivers, and working
registers.
On the positive transition of the clock (CLK) input,
the Q outputs are set to the logic levels set up at
the data (D) inputs.
A buffered output-enable (OE) input places the
eight outputs in either a normal logic state (high or
low logic levels) or the high-impedance state. In
the high-impedance state, the outputs neither
load nor drive the bus lines significantly. The
high-impedance state and the increased drive
provide the capability to drive bus lines without
interface or pullup components.
OE does not affect internal operations of the flip-flops. Old data can be retained or new data can be entered
while the outputs are in the high-impedance state.
The SN54ALS374A and SN54AS374 are characterized for operation over the full military temperature range
of –55
°C to 125°C. The SN74ALS374A and SN74AS374 are characterized for operation from 0°C to 70°C.
FUNCTION TABLE
(each flip-flop)
INPUTS
OUTPUT
OE
CLK
D
Q
L
↑
H
L
↑
LL
L
H or L
X
Q0
H
X
Z
Copyright
1999, 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
9
10
20
19
18
17
16
15
14
13
12
11
OE
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
VCC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
CLK
SN54ALS374A, SN54AS374 . . . J PACKAGE
SN74ALS374A, SN74AS374 . . . DW OR N PACKAGE
(TOP VIEW)
32 1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
8D
7D
7Q
6Q
6D
2D
2Q
3Q
3D
4D
SN54ALS374A, SN54AS374 . . . FK PACKAGE
(TOP VIEW)
1D
1Q
OE
5Q
5D
8Q
4Q
GND
CLK
V
CC
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SN74AS374DWRG4 | 功能描述:觸發器 Octal DType Edge Trgrd FlipFlops RoHS:否 制造商:Texas Instruments 電路數量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
| SN74AS374N | 功能描述:觸發器 Octal D-Ty Edge Trig F-F W/3-State Otpt RoHS:否 制造商:Texas Instruments 電路數量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
| SN74AS374NE4 | 功能描述:觸發器 Octal D-Ty Edge Trig F-F W/3-State Otpt RoHS:否 制造商:Texas Instruments 電路數量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
| SN74AS374N-J | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74AS374NSR | 功能描述:觸發器 Octal D-Ty Edge Trig F-F W/3-State Otpt RoHS:否 制造商:Texas Instruments 電路數量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
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