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參數(shù)資料
| 型號： | 74LCX16821MEAX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 20-Bit D-Type Flip-Flop |
| 中文描述： | LVC/LCX/Z SERIES, DUAL 10-BIT DRIVER, TRUE OUTPUT, PDSO56 |
| 封裝： | 0.300 INCH, MO-118, SSOP-56 |
| 文件頁數(shù)： | 2/8頁 |
| 文件大?。?/td> | 80K |
| 代理商： | 74LCX16821MEAX |
www.fairchildsemi.com
2
7
Connection Diagram
Truth Tables
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Z
=
High Impedance
O
0
=
Previous O
0
before LOW
-
to-HIGH transition of Clock
=
LOW-to-HIGH transition
Functional Description
The LCX16821 contains twenty D-type flip-flops with 3-
STATE standard outputs. The device is byte controlled with
each byte functioning identically, but independent of the
other. Control pins can be shorted together to obtain full
20-bit operation. The following description applies to each
byte. The twenty flip-flops will store the state of their indi-
vidual D inputs that meet the setup and hold time require-
ments on the LOW-to-HIGH Clock (CLK) transition. The 3-
STATE standard outputs are controlled by the Output
Enable (OE
n
) input. When OE
n
is LOW, the standard out-
puts are in the 2-state mode. When OE
n
is HIGH, the stan-
dard outputs are in the high impedance mode but this does
not interfere with entering new data into the flip-flops.
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays.
Inputs
Outputs
CLK
1
OE
1
D
0
–D
9
O
0
–O
9
X
H
X
Z
L
L
L
L
H
H
L or H
L
X
O
0
Inputs
Outputs
CLK
2
OE
2
D
10
–D
19
O
10
–O
19
X
H
X
Z
L
L
L
L
H
H
L or H
L
X
O
0
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 74LCX16821MTDX | 20-Bit D-Type Flip-Flop |
| 74LCX16841MEAX | 10-Bit D-Type Latch |
| 74LCX16841 | Low Voltage 20-Bit Transparent Latch with 5V Tolerant Inputs and Outputs |
| 74LCX16841MEA | Low Voltage 20-Bit Transparent Latch with 5V Tolerant Inputs and Outputs |
| 74LCX16841MTD | Low Voltage 20-Bit Transparent Latch with 5V Tolerant Inputs and Outputs |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74LCX16821MTD | 功能描述:觸發(fā)器 20-Bit D Flip-Flop RoHS:否 制造商:Texas Instruments 電路數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
| 74LCX16821MTD_Q | 功能描述:觸發(fā)器 20-Bit D Flip-Flop RoHS:否 制造商:Texas Instruments 電路數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
| 74LCX16821MTDX | 功能描述:觸發(fā)器 20-Bit D Flip-Flop RoHS:否 制造商:Texas Instruments 電路數(shù)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(fēng)格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
| 74LCX16841 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Low Voltage 20-Bit Transparent Latch with 5V Tolerant Inputs and Outputs |
| 74LCX16841MEA | 功能描述:閉鎖 20-Bit Trans Latch RoHS:否 制造商:Micrel 電路數(shù)量:1 邏輯類型:CMOS 邏輯系列:TTL 極性:Non-Inverting 輸出線路數(shù)量:9 高電平輸出電流: 低電平輸出電流: 傳播延遲時間: 電源電壓-最大:12 V 電源電壓-最小:5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-16 封裝:Reel |
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