Datasheet > 74HCT221D

74HCT221D

更新时间： 2024-01-28 22:11:36

品牌	Logo	应用领域
安世 - NEXPERIA		时钟 PC 输入元件光电二极管逻辑集成电路
页数	文件大小	规格书
19页	799K
描述
Dual non-retriggerable monostable multivibrator with resetProduction

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74HCT221D 技术参数

是否Rohs认证：	符合	生命周期：	Transferred
包装说明：	SOP, SOP16,.25	Reach Compliance Code：	unknown
风险等级：	5.68	Is Samacsys：	N
JESD-30 代码：	R-PDSO-G16	逻辑集成电路类型：	MONOSTABLE MULTIVIBRATOR
湿度敏感等级：	1	端子数量：	16
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装等效代码：	SOP16,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	电源：	5 V
认证状态：	Not Qualified	子类别：	Prescaler/Multivibrators
标称供电电压 (Vsup)：	5 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	Base Number Matches：	1

74HCT221D 数据手册

74HCT221

Dual non-retriggerable monostable multivibrator with reset

Rev. 3 — 26 October 2016

Product data sheet

1. General description

The 74HCT221 is a dual non-retriggerable monostable multivibrator. Each multivibrator

features edge-triggered inputs (nA and nB), either of which can be used as an enable

input. Pulse triggering occurs at a particular voltage level and is not directly related to the

transition time of the input pulse. Schmitt-trigger input circuitry for the nB inputs allow

jitter-free triggering from inputs with slow transition rates, providing the circuit with

excellent noise immunity. Once triggered, the outputs (nQ, nQ) are independent of further

transitions of nA and nB inputs. The output pulse width is defined by the following

relationship: t_W= 0.7  C_EXT R_EXTThe output pulses can be terminated by the active

LOW reset inputs (nRD). Pulse width stability is achieved through internal compensation

and is virtually independent of V_CCand temperature. In most applications pulse stability

will only be limited by the accuracy of the external timing components. Inputs include

clamp diodes. This enables the use of current limiting resistors to interface inputs to

voltages in excess of V_CC

2. Features and benefits

 Input levels:

 For 74HCT221: TTL level

 Pulse width variance is typically less than 5%

 Direct reset terminates output pulse

 Schmitt-trigger action on nB inputs

 ESD protection:

 HBM JESD22-A114F exceeds 2000 V

 MM JESD22-A115-A exceeds 200 V

 Specified from 40 C to +85 C and from 40 C to +125 C

3. Ordering information

Table 1.

Type number Package

Temperature range Name Description

40 C to +125 C SO16 plastic small outline package; 16 leads; body width 3.9 mm

Ordering information

Version

74HCT221D

SOT109-1

12 3 4 5 6 7...19

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与74HCT221D相关器件

型号	品牌	描述	获取价格	数据表
74HCT221D,112	NXP	74HC(T)221 - Dual non-retriggerable monostable multivibrator with reset SOP 16-Pin	获取价格
74HCT221D,118	NXP	74HC(T)221 - Dual non-retriggerable monostable multivibrator with reset SOP 16-Pin	获取价格
74HCT221DB	NXP	IC HCT SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16, SOT-338-1, SSOP-16, Prescaler/Multiv	获取价格
74HCT221DB,112	NXP	74HC(T)221 - Dual non-retriggerable monostable multivibrator with reset SSOP1 16-Pin	获取价格
74HCT221DB,118	NXP	74HC(T)221 - Dual non-retriggerable monostable multivibrator with reset SSOP1 16-Pin	获取价格
74HCT221DB-T	NXP	IC HCT SERIES, DUAL MONOSTABLE MULTIVIBRATOR, PDSO16, SOT-338-1, SSOP-16, Prescaler/Multiv	获取价格

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