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參數資料
| 型號： | HEF4538BT |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 振蕩器 |
| 英文描述： | Dual precision monostable multivibrator |
| 封裝： | HEF4538BP<SOT38-4 (DIP16)|<<http://www.nxp.com/packages/SOT38-4.html<1<Always Pb-free,;HEF4538BT<SOT109-1 (SO16)|<<http://www.nxp.com/packages/SOT109-1.html<1<week |
| 文件頁數： | 1/18頁 |
| 文件大小： | 447K |
| 代理商： | HEF4538BT |
1. General description
The HEF4538B is a dual retriggerable-resettable monostable multivibrator. Each
multivibrator has an active LOW trigger/retrigger input (nA), an active HIGH
trigger/retrigger input (nB), an overriding active LOW direct reset input (nCD), an output
(nQ) and its complement (nQ), and two pins (nREXT/CEXT, and nCEXT, always
connected to ground) for connecting the external timing components C
EXT
and R
EXT
.
Typical pulse width variation over the specified temperature range is
0.2 %.
The multivibrator may be triggered by either the positive or the negative edges of the input
pulse and will produce an accurate output pulse with a pulse width range of 10
s to
infinity. The duration and accuracy of the output pulse are determined by the external
timing components C
EXT
and R
EXT
. The output pulse width (t
W
) is equal to R
EXT
C
EXT
.
The linear design techniques in LOCMOS (Local Oxide CMOS) guarantee precise control
of the output pulse width. A LOW level at nCD terminates the output pulse immediately.
The trigger inputs’ Schmitt trigger action makes the circuit highly tolerant of slower rise
and fall times.
It operates over a recommended V
DD
power supply range of 3 V to 15 V referenced to V
SS
(usually ground). Unused inputs must be connected to V
DD
, V
SS
, or another input. It is
also suitable for use over the industrial (
40
C to +85
C) and automotive (
40
C to
+125
C) temperature ranges.
2. Features and benefits
Tolerant of slow trigger rise and fall times
Fully static operation
5 V, 10 V, and 15 V parametric ratings
Standardized symmetrical output characteristics
Operates across the automotive temperature range
40
C to +125
C
Complies with JEDEC standard JESD 13-B
3. Applications
Automotive and industrial
HEF4538B
Dual precision monostable multivibrator
Rev. 7 — 17 February 2011
Product data sheet
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|---|---|
| HEF4541BT | Programmable timer |
| HEF4543BP | BCD to 7-segment latch-decoder-driver |
| HEF4543BT | BCD to 7-segment latch-decoder-driver |
| HEF4555BT | 1-of-4 decoder-demultiplexer |
| HEF4555BP | 1-of-4 decoder-demultiplexer |
相關代理商/技術參數 |
參數描述 |
|---|---|
| HEF4538BT,652 | 功能描述:單穩態多諧振蕩器 DUAL MONO MULTIVIB RETRIG/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 |
| HEF4538BT,653 | 功能描述:單穩態多諧振蕩器 DUAL PRECISION MONOST MULTIVIB 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 |
| HEF4538BT,653-CUT TAPE | 制造商:NXP 功能描述:HEF4538B Series 15 V Dual Precision Monostable Multivibrator - SOIC-16 |
| HEF4538BT | 制造商:NXP Semiconductors 功能描述:IC 4000 LOCMOS SMD 4538 SOIC16 |
| HEF4538BT652 | 制造商:NXP Semiconductors 功能描述:IC MONOSTABLEPRECISION MULTIVIBRATOR 3 |
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