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參數(shù)資料
| 型號： | DM93L14 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Quad Latch(四鎖存器) |
| 中文描述： | 四鎖存（四鎖存器） |
| 文件頁數(shù)： | 2/5頁 |
| 文件大?。?/td> | 115K |
| 代理商： | DM93L14 |
www.fairchildsemi.com
2
D
Functional Description
The DM93L14 consists of four latches with a common
active LOW Enable input and active LOW Master Reset
input. When the Enable goes HIGH, data present in the
latches is stored and the state of the latch is no longer
affected by the S
n
and D
n
inputs. the Master Reset when
activated overrides all other input conditions forcing all
latch outputs LOW. Each of the four latches can be oper-
ated in one of two modes:
D-TYPE LATCH—For D-type operation the S input of a
latch is held LOW. While the common Enable is active the
latch output follows the D input. Information present at the
latch output is stored in the latch when the Enable goes
HIGH.
SET/RESET LATCH—During set/reset operation when the
common Enable is LOW a latch is reset by a LOW on the D
input, and can be set by a LOW on the S input if the D input
is HIGH. If both S and D inputs are LOW, the D input will
dominate and the latch will be reset. When the Enable
goes HIGH, the latch remains in the last state prior to dis-
ablement. The two modes of latch operation are shown in
the Truth Table.
Truth Table
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
Q
n
1
=
Previous Output State
Q
n
=
Present Output State
Logic Diagram
MR
H
H
H
H
H
H
H
H
L
E
L
L
H
L
L
L
L
H
X
D
L
H
X
L
H
L
H
X
X
S
L
L
X
L
L
H
H
X
X
Q
n
L
L
Q
n-1
L
H
L
Q
n-1
Q
n-1
L
Operation
D Mode
R/S Mode
RESET
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DM93L14N | Quad Latch |
| DM93L28 | Dual 8-Bit Shift Register(雙8位移位寄存器) |
| DM93L28N | Dual 8-Bit Shift Register |
| DM93L38 | 8-Bit Multiple Port Register(8位多端口寄存器) |
| DM93L38N | 8-Bit Multiple Port Register |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DM93L14N | 功能描述:閉鎖 DISC BY MFG 7/03 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 |
| DM93L16 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| DM93L21 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| DM93L22 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| DM93L24 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
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