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參數資料
| 型號： | CD74HCT423M |
| 廠商： | Harris Corporation |
| 元件分類： | 通用總線功能 |
| 英文描述： | LMC6492 Dual/LMC6494 Quad CMOS Rail-to-Rail Input and Output Operational Amplifier; Package: SOIC NARROW; No of Pins: 14 |
| 中文描述： | 高速CMOS邏輯雙Retriggerable單穩態多頻振蕩器的重置 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 56K |
| 代理商： | CD74HCT423M |
1
Data sheet acquired from Harris Semiconductor
SCHS142
September 1997
Features
Overriding Reset Terminates Output Pulse
Triggering From the Leading or Trailing Edge
Q and Q Buffered Outputs
Separate Resets
Wide Range of Output-Pulse Widths
Schmitt Trigger on Both A and B Inputs
Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
Wide Operating Temperature Range . . . -55
o
C to 125
o
C
Balanced Propagation Delay and Transition Times
Significant Power Reduction Compared to LSTTL
Logic ICs
HC Types
- 2V to 6V Operation
- High Noise Immunity: N
IL
= 30%, N
IH
= 30%of V
CC
at
V
CC
= 5V
HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V
IL
= 0.8V (Max), V
IH
= 2V (Min)
- CMOS Input Compatibility, I
l
≤
1
μ
A at V
OL
, V
OH
Pinout
CD74HC123, CD74HCT123, CD74HC423, CD74HCT423
(PDIP, SOIC)
TOP VIEW
Description
The Harris CD74HC123, CD74HCT123, CD74HC423 and
CD74HCT423 are dual monostable multivibrators with
resets. They are all retriggerable and differ only in that the
123 types can be triggered by a negative to positive reset
pulse; whereas the 423 types do not have this feature. An
external resistor (R
X
) and an external capacitor (C
X
) control
the timing and the accuracy for the circuit. Adjustment of Rx
and C
X
provides a wide range of output pulse widths from
the Q and Q terminals. Pulse triggering on the A and B
inputs occur at a particular voltage level and is not related to
the rise and fall times of the trigger pulses.
Once triggered, the output pulse width may be extended by
retriggering inputs A and B. The output pulse can be
terminated by a LOW level on the Reset (R) pin. Trailing
edge triggering (A) and leading edge triggering (B) inputs
are provided for triggering from either edge of the input
pulse. If either Mono is not used each input on the unused
device (A, B, and R) must be terminated high or low.
The minimum value of external resistance, Rx is typically 5k
.
The minimum value external capacitance, C
X
, is 0pF. The
calculation for the pulse width is t
W
= 0.45 R
X
C
X
at V
CC
= 5V.
14
15
16
9
13
12
11
10
1
2
3
4
5
7
6
8
1A
1B
1R
1Q
2Q
2C
X
GND
2R
X
C
X
V
CC
1C
X
1Q
2Q
2R
2B
2A
1R
X
C
X
Ordering Information
PART NUMBER
TEMP. RANGE (
o
C)
PACKAGE
PKG.
NO.
CD74HC123E
-55 to 125
16 Ld PDIP
E16.3
CD74HCT123E
-55 to 125
16 Ld PDIP
E16.3
CD74HC423E
-55 to 125
16 Ld PDIP
E16.3
CD74HCT423E
-55 to 125
16 Ld PDIP
E16.3
CD74HC123M
-55 to 125
16 Ld SOIC
M16.15
CD74HCT123M
-55 to 125
16 Ld SOIC
M16.15
CD74HC423M
-55 to 125
16 Ld SOIC
M16.15
CD74HCT423M
-55 to 125
16 Ld SOIC
M16.15
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Waferordieforthispartnumberisavailablewhichmeetsallelec-
trical specifications. Please contact your local sales office or
Harris customer service for ordering information.
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Harris Corporation 1997
File Number
1708.1
CD74HC123, CD74HCT123,
CD74HC423, CD74HCT423
High Speed CMOS Logic Dual Retriggerable
Monostable Multivibrators with Resets
[ /Title
(CD74
HC123
,
CD74
HCT12
3,
CD74
HC423
,
CD74
HCT42
3)
/Sub-
ject
(High
Speed
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相關代理商/技術參數 |
參數描述 |
|---|---|
| CD74HCT423M96 | 功能描述:單穩態多諧振蕩器 Hi-Spd CMOS Dual Retrig with Reset RoHS:否 制造商:Texas Instruments 每芯片元件:1 邏輯系列:LVC 邏輯類型:Monostable Multivibrator 封裝 / 箱體:SSOP-8 傳播延遲時間:18.6 ns 高電平輸出電流:- 32 mA 低電平輸出電流:32 mA 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| CD74HCT423M96E4 | 功能描述:單穩態多諧振蕩器 Hi-Spd CMOS Dual Retrig with Reset RoHS:否 制造商:Texas Instruments 每芯片元件:1 邏輯系列:LVC 邏輯類型:Monostable Multivibrator 封裝 / 箱體:SSOP-8 傳播延遲時間:18.6 ns 高電平輸出電流:- 32 mA 低電平輸出電流:32 mA 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| CD74HCT423M96G4 | 功能描述:單穩態多諧振蕩器 Hi Spd CMOS Log Dual Retriggerable RoHS:否 制造商:Texas Instruments 每芯片元件:1 邏輯系列:LVC 邏輯類型:Monostable Multivibrator 封裝 / 箱體:SSOP-8 傳播延遲時間:18.6 ns 高電平輸出電流:- 32 mA 低電平輸出電流:32 mA 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| CD74HCT423MT | 功能描述:單穩態多諧振蕩器 Hi-Spd CMOS Dual Retrig with Reset RoHS:否 制造商:Texas Instruments 每芯片元件:1 邏輯系列:LVC 邏輯類型:Monostable Multivibrator 封裝 / 箱體:SSOP-8 傳播延遲時間:18.6 ns 高電平輸出電流:- 32 mA 低電平輸出電流:32 mA 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| CD74HCT423MTE4 | 功能描述:單穩態多諧振蕩器 Hi-Spd CMOS Dual Retrig with Reset RoHS:否 制造商:Texas Instruments 每芯片元件:1 邏輯系列:LVC 邏輯類型:Monostable Multivibrator 封裝 / 箱體:SSOP-8 傳播延遲時間:18.6 ns 高電平輸出電流:- 32 mA 低電平輸出電流:32 mA 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
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