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參數(shù)資料
| 型號： | SN54ACT574 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Octal Edge-Triggered D-type Flip-Flops With 3-State Outputs(八上升沿D觸發(fā)器(三態(tài)同相輸出)) |
| 中文描述： | 八路邊沿觸發(fā)D型觸發(fā)器與3正反器態(tài)輸出（八上升沿?觸發(fā)器（三態(tài)同相輸出）） |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 144K |
| 代理商： | SN54ACT574 |
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9
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20
19
18
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16
15
14
13
12
11
OE
1D
2D
3D
4D
5D
6D
7D
8D
GND
V
CC
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
CLK
SN54ACT574 . . . J OR W PACKAGE
SN74ACT574 . . . DB, DW, N, OR PW PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
2Q
3Q
4Q
5Q
6Q
3D
4D
5D
6D
7D
2
1
O
8
7
1
8
G
C
V
C
SN54ACT574 . . . FK PACKAGE
(TOP VIEW)
SN54ACT574, SN74ACT574
OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS
WITH 3-STATE OUTPUTS
SCAS537A – OCTOBER 1995 – REVISED MAY 1996
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Inputs Are TTL-Voltage Compatible
EPIC (Enhanced-Performance Implanted
CMOS) 1-
μ
m Process
Package Options Include Plastic
Small-Outline (DW) Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages, Ceramic Chip Carriers (FK) and
Flatpacks (W), and Standard Plastic (N) and
Ceramic (J) DIP Packages
description
These 8-bit flip-flops feature 3-state outputs
designed specifically for driving highly capacitive
or relatively low-impedance loads. The devices
are particularly suitable for implementing buffer
registers, I/O ports, bidirectional bus drivers, and
working registers.
The eight flip-flops of the ’ACT574 are D-type
edge-triggered flip-flops. On the positive transi-
tion 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 can be used
to place 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 in a bus-organized system without need for
interface or pullup components.
OE does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while
the outputs are in the high-impedance state.
The SN54ACT574 is characterized for operation over the full military temperature range of –55
°
C to 125
°
C. The
SN74ACT574 is characterized for operation from –40
°
C to 85
°
C.
FUNCTION TABLE
(each flip-flop)
INPUTS
OUTPUT
Q
OE
L
CLK
↑
↑
H or L
D
H
H
L
L
L
L
X
Q0
Z
H
X
X
Copyright
1996, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
EPIC is a trademark of Texas Instruments Incorporated.
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.
相關PDF資料 |
PDF描述 |
|---|---|
| SN54ACT7811GB | 1024 】 18 CLOCKED FIRST-IN, FIRST-OUT MEMORY |
| SN54ACT7811HV | 1024 】 18 CLOCKED FIRST-IN, FIRST-OUT MEMORY |
| SN54ACT7811 | Clocked First-in, First-out Memory(1024×18定時FIFO存儲器) |
| SN54ACT7881PN | 1024 】 18 CLOCKED FIRST-IN, FIRST-OUT MEMORY |
| SN54ACT7881HV | 1024 】 18 CLOCKED FIRST-IN, FIRST-OUT MEMORY |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| SN54ACT574_07 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS |
| SN54ACT574FK | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS |
| SN54ACT574J | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS |
| SN54ACT574W | 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS |
| SN54ACT74 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR AND PRESET |
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