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參數(shù)資料
| 型號： | MM74HC4538 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | 1.5A, 260kHz Low Voltage Buck Regulator with External Bias Capability; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Tape and Reel; Qty per Container: 2500 |
| 中文描述： | 雙Retriggerable單穩(wěn)態(tài)觸發(fā)器 |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 119K |
| 代理商： | MM74HC4538 |
2000 Fairchild Semiconductor Corporation
DS005217
www.fairchildsemi.com
February 1984
Revised August 2000
M
MM74HC4538
Dual Retriggerable Monostable Multivibrator
General Description
The MM74HC4538 high speed monostable multivibrator
(one shots) is implemented in advanced silicon-gate
CMOS technology. They feature speeds comparable to low
power Schottky TTL circuitry while retaining the low power
and high noise immunity characteristic of CMOS circuits.
Each multivibrator features both a negative, A, and a posi-
tive, B, transition triggered input, either of which can be
used as an inhibit input. Also included is a clear input that
when taken low resets the one shot. The MM74HC4538 is
retriggerable. That is, it may be triggered repeatedly while
their outputs are generating a pulse and the pulse will be
extended.
Pulse width stability over a wide range of temperature and
supply is achieved using linear CMOS techniques. The out-
put pulse equation is simply: PW
=
0.7(R)(C) where PW is
in seconds, R is in ohms, and C is in farads. This device is
pin compatible with the CD4528, and the CD4538 one
shots. All inputs are protected from damage due to static
discharge by diodes to V
CC
and ground.
Features
I
Schmitt trigger on A and B inputs
I
Wide power supply range: 2–6V
I
Typical trigger propagation delay: 32 ns
I
Fanout of 10 LS-TTL loads
I
Low input current: 1
μ
A max
Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter
“
X
”
to the ordering code.
Connection Diagram
Truth Table
H
=
HIGH Level
L
=
LOW Level
↑
=
Transition from LOW-to-HIGH
↓
=
Transition from HIGH-to-LOW
=
One HIGH Level Pulse
=
One LOW Level Pulse
X
=
Irrelevant
Order Number
MM74HC4538M
MM74HC4538SJ
MM74HC4538N
Package Number
M16A
M16D
N16E
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Inputs
Outputs
Clear
A
B
Q
Q
L
X
X
L
H
X
H
X
L
H
X
X
L
L
H
H
L
↓
H
↑
H
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PDF描述 |
|---|---|
| MM74HC4538M | 1.5 A, 260 kHz Low Voltage Buck Regulators with External Bias; Package: DFN18 6x5, 0.5p; No of Pins: 18; Container: Tape and Reel; Qty per Container: 2500 |
| MM74HC4538N | Dual Retriggerable Monostable Multivibrator |
| MM74HC4538SJ | 1.5A, 260kHz Low Voltage Buck Regulator with External Bias Capability; Package: SOIC-8 Narrow Body; No of Pins: 8; Container: Rail; Qty per Container: 98 |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MM74HC4538 WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| MM74HC4538M | 功能描述:單穩(wěn)態(tài)多諧振蕩器 Dual Multivibrator 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 |
| MM74HC4538M | 制造商:Fairchild Semiconductor Corporation 功能描述:74HC CMOS SMD 74HC4538 SOIC16 |
| MM74HC4538M_Q | 功能描述:單穩(wěn)態(tài)多諧振蕩器 Dual Multivibrator 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 |
| MM74HC4538MX | 功能描述:單穩(wěn)態(tài)多諧振蕩器 Dual Multivibrator 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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