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參數(shù)資料
| 型號(hào)： | DM74AS574WMX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | Octal D-Type Flip-Flop |
| 中文描述： | AS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封裝： | 0.300 INCH, MS-013, SOIC-20 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 60K |
| 代理商： | DM74AS574WMX |
2000 Fairchild Semiconductor Corporation
DS006314
www.fairchildsemi.com
October 1986
Revised March 2000
D
DM74AS574
Octal D-Type Edge-Triggered Flip-Flops
with 3-STATE Outputs
General Description
These 8-bit registers feature totem-pole 3-STATE outputs
designed specifically for driving highly-capacitive or rela-
tively low-impedance loads. The high-impedance state and
increased HIGH-logic-level drive provide these registers
with the capability of being connected directly to and driv-
ing the bus lines in a bus-organized system without need
for interface or pull-up components. They are particularly
attractive for implementing buffer registers, I/O ports, bidi-
rectional bus drivers, and working registers.
The eight flip-flops of the DM74AS574 are edge-triggered
D-type flip-flops. On the positive transition of the clock, the
Q outputs will be set to the logic states that were set up at
the D inputs.
A buffered output control input can be used to place the
eight outputs in either a normal logic state (HIGH or LOW
logic levels) or a high impedance state. In the high-imped-
ance state the outputs neither load nor drive the bus lines
significantly.
The output control does not affect the internal operation of
the flip-flops. That is, the old data can be retained or new
data can be entered even while the outputs are OFF.
The pinout is arranged to ease printed circuit board layout.
All data inputs are on one side of the package while all the
outputs are on the other side.
Features
I
Switching specifications at 50 pF
I
Switching specifications guaranteed over full tempera-
ture and V
CC
range
I
Advanced oxide-isolated, ion-implanted Schottky TTL
process
I
Functionally equivalent with DM74S374
I
Improved AC performance over DM74S374 at approxi-
mately half the power
I
3-STATE buffer-type outputs drive bus lines directly
I
Bus structured pinout
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Order Number
DM74AS574WM
DM74AS574N
Package Number
M20B
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DM74AS640 | Replaced by SN74LVC863A : 9-Bit Bus Transceiver With 3-State Outputs 0-SSOP -40 to 85 |
| DM74AS640N | Replaced by SN74LVC863A : 9-Bit Bus Transceiver With 3-State Outputs 24-SOIC -40 to 85 |
| DM74AS640WM | 3-STATE Octal Bus Transceiver |
| DM74AS640WMX | Single 8-Bit Inverting Bus Transceiver |
| DM74AS648 | Octal Bus Transceiver and Register(八總線收發(fā)器和寄存器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM74AS576N | 制造商:National Semiconductor Corporation 功能描述:Latch, Single, 8 Bit, 20 Pin, Plastic, DIP 制造商:Texas Instruments 功能描述:Latch, Single, 8 Bit, 20 Pin, Plastic, DIP |
| DM74AS640N | 功能描述:總線收發(fā)器 Oct 3-STATE Oct Tran RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| DM74AS640WMX | 功能描述:總線收發(fā)器 Oct 3-STATE Oct Tran RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| DM74AS645N | 制造商:Texas Instruments 功能描述: |
| DM74AS646_A1110562 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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