Datasheet > CD74HC4538QPWRQ1

CD74HC4538QPWRQ1

更新时间： 2024-11-24 12:42:59

品牌	Logo	应用领域
德州仪器 - TI		振荡器
页数	文件大小	规格书
16页	341K
描述
HIGH-SPEED CMOS LOGIC DUAL RETRIGGERABLE PRECISION MONOSTABLE MULTIVIBRATOR

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技术参数
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CD74HC4538QPWRQ1 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	TSSOP
包装说明：	TSSOP, TSSOP16,.25	针数：	16
Reach Compliance Code：	compliant	HTS代码：	8542.39.00.01
Factory Lead Time：	6 weeks	风险等级：	0.64
系列：	HC/UH	JESD-30 代码：	R-PDSO-G16
JESD-609代码：	e4	长度：	5 mm
负载电容（CL）：	50 pF	逻辑集成电路类型：	MONOSTABLE MULTIVIBRATOR
最大I（ol）：	0.0052 A	湿度敏感等级：	1
位数：	2	数据/时钟输入次数：	2
功能数量：	2	端子数量：	16
最高工作温度：	125 °C	最低工作温度：	-40 °C
输出极性：	COMPLEMENTARY	封装主体材料：	PLASTIC/EPOXY
封装代码：	TSSOP	封装等效代码：	TSSOP16,.25
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
包装方法：	TR	峰值回流温度（摄氏度）：	260
电源：	2/6 V	最大电源电流（ICC）：	0.08 mA
传播延迟（tpd）：	375 ns	认证状态：	Not Qualified
筛选级别：	AEC-Q100	座面最大高度：	1.2 mm
子类别：	Prescaler/Multivibrators	最大供电电压 (Vsup)：	6 V
最小供电电压 (Vsup)：	2 V	标称供电电压 (Vsup)：	4.5 V
表面贴装：	YES	技术：	CMOS
温度等级：	AUTOMOTIVE	端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	4.4 mm	Base Number Matches：	1

CD74HC4538QPWRQ1 数据手册

CD74HC4538-Q1

HIGH-SPEED CMOS LOGIC DUAL RETRIGGERABLE

PRECISION MONOSTABLE MULTIVIBRATOR

SCLS595A − NOVEMBER 2004 − REVISED APRIL 2008

Qualified for Automotive Applications

Retriggerable/Resettable Capability

Trigger and Reset Propagation Delays

Balanced Propagation Delay and Transition

Times

Significant Power Reduction Compared to

LSTTL Logic ICs

Independent of R , C

Voltage = 2 V to 6 V

Triggering From the Leading or Trailing

Edge

High Noise Immunity N or N = 30% of

, V = 5 V

Q and Q Buffered Outputs Available

Separate Resets

M OR PW PACKAGE

(TOP VIEW)

Wide Range of Output Pulse Widths

Schmitt-Trigger Input on A and B Inputs

1C_X

1R_XC_X

V_CC

Retrigger Time Is Independent of C

2C_X

2R_XC_X

Fanout (Over Temperature Range)

− Standard Outputs . . . 10 LSTTL Loads

− Bus Driver Outputs . . . 15 LSTTL Loads

description/ordering information

10 2Q

GND

The CD74HC4538 is a dual retriggerable/resettable

precision monostable multivibrator for fixed-voltage

timing applications. An external resistor (R ) and

external capacitor (C ) control the timing and accuracy for the circuit. Adjustment of R and C provides a wide

range of output pulse widths from the Q and Q terminals. The propagation delay from trigger input-to-output

transition and the propagation delay from reset input-to-output transition are independent of R and C .

Leading-edge triggering (A) and trailing-edge triggering (B) inputs are provided for triggering from either edge

of the input pulse. An unused A input should be tied to GND and an unused B input should be tied to V . On

power up, the IC is reset. Unused resets and sections must be terminated. In normal operation, the circuit

retriggers on the application of each new trigger pulse. To operate in the nontriggerable mode, Q is connected

to B when leading-edge triggering (A) is used, or Q is connected to A when trailing-edge triggering (B) is used.

The period (τ) can be calculated from τ = (0.7) R , C ; R

is 5 kΩ. C

is 0 pF.

MIN

{

ORDERING INFORMATION

ORDERABLE

PART NUMBER

TOP-SIDE

‡

PACKAGE

MARKING

HC4538M

SOIC − M

Tape and reel

CD74HC4538QM96Q1

CD74HC4538QPWRQ1

−40°C to 125°C

TSSOP − PW Tape and reel

†

‡

For the most current package and ordering information, see the Package Option Addendum at the

end of this document, or see the TI web site at http://www.ti.com.

Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...16

中文翻译

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CD74HC4538QPWRQ1 替代型号

型号	品牌	替代类型	描述	数据表
CD74HC4538QPWRG4Q1	TI	完全替代	HIGH-SPEED CMOS LOGIC DUAL RETRIGGERABLE PRECISION MONOSTABLE MULTIVIBRATOR
CD74HC4538M	TI	类似代替	High Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrator
CD74HC123E	TI	类似代替	High Speed CMOS Logic Dual Retriggerable Monostable Multivibrators with Resets

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