74HC4538PW,112,74HC4538PW,112 pdf中文资料,74HC4538PW,112引脚图,74HC4538PW,112电路-Datasheet-电子工程世界

器件参数

参数名称

属性值

Brand Name

Nexperia

是否Rohs认证

符合

厂商名称

Nexperia

零件包装代码

TSSOP

包装说明

PLASTIC, TSSOP-16

针数

制造商包装代码

SOT403-1

Reach Compliance Code

compliant

Samacsys Description

74HC4538 - Dual retriggerable precision monostable multivibrator@en-us

其他特性

RETRIGGERABLE

系列

HC/UH

JESD-30 代码

R-PDSO-G16

JESD-609代码

长度

5 mm

逻辑集成电路类型

MONOSTABLE MULTIVIBRATOR

湿度敏感等级

数据/时钟输入次数

功能数量

端子数量

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

封装形状

RECTANGULAR

封装形式

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

峰值回流温度（摄氏度）

NOT SPECIFIED

传播延迟（tpd）

80 ns

座面最大高度

1.1 mm

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)

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

文档预览

74HC4538

Dual retriggerable precision monostable multivibrator

Rev. 5 — 17 March 2017

Product data sheet

General description

The 74HC4538 is a dual retriggerable-resettable monostable multivibrator. Each

multivibrator has two trigger/retrigger inputs (nA and nB), a direct reset input (nCD),

two complementary outputs (nQ and nQ), and two pins (nREXT/CEXT and nCEXT)

for connecting the external timing components C

EXT

and R

EXT

. Typical pulse width

variation over temperature range is ± 0.2 %. The device may be triggered by either the

positive or the negative edges of the input pulse. 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

) is equal to 0.7 × R

EXT

× C

EXT

. The linear design techniques guarantee

precise control of the output pulse width. A LOW level at nCD terminates the output pulse

immediately. Schmitt-trigger action in the trigger inputs makes the circuit highly tolerant

to slower rise and fall times. Inputs include clamp diodes. This enables the use of current

limiting resistors to interface inputs to voltages in excess of V

Features and benefits

•

Tolerant of slow trigger rise and fall times

Separate reset inputs

Triggering from falling or rising edge

Complies with JEDEC standard no. 7A

CMOS input levels:

ESD protection:

–

HBM JESD22-A114F exceeds 2000 V

–

MM JESD22-A115-A exceeds 200 V

•

Multiple package options

•

Specified from -40 °C to +85 °C and from -40 °C to +125 °C

Nexperia

Dual retriggerable precision monostable multivibrator

74HC4538

Ordering information

Table 1. Ordering information

Type number Package

Temperature

range

74HC4538D

74HC4538DB

74HC4538PW

-40 °C to +125 °C

Name

SO16

SSOP16

Description

plastic small outline package; 16 leads;

body width 3.9 mm

plastic shrink small outline package; 16 leads;

body width 5.3 mm

Version

SOT109-1

SOT338-1

SOT403-1

TSSOP16 plastic thin shrink small outline package; 16 leads;

body width 4.4 mm

Functional diagram

1REXT/CEXT

1CEXT

1CD

2REXT/CEXT

2CEXT

2CD

001aae727

Figure 1. Functional diagram

74HC4538

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 March 2017

2 / 21

Nexperia

Dual retriggerable precision monostable multivibrator

74HC4538

nREXT/CEXT

ref1

nCEXT

GND

nCD

enable

power-on reset

ref2

enable

mba338

GND

Figure 2. Logic diagram (one multivibrator)

74HC4538

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 March 2017

3 / 21

Nexperia

Dual retriggerable precision monostable multivibrator

74HC4538

Pinning information

5.1 Pinning

74HC4538

1CEXT

1REXT/CEXT

1CD

GND

aaa-026540

16 V

15 2CEXT

14 2REXT/CEXT

13 2CD

12 2B

11 2A

10 2Q

1CEXT

1REXT/CEXT

1CD

GND

aaa-026542

74HC4538

16 V

15 2CEXT

14 2REXT/CEXT

13 2CD

12 2B

11 2A

10 2Q

Figure 3. Pin configuration for SO16

Figure 4. Pin configuration for SSOP16 and TSSOP16

5.2 Pin description

Table 2. Pin description

Symbol

1CEXT, 2CEXT

1REXT/CEXT, 2REXT/CEXT

1CD, 2CD

1B, 2B

1A, 2A

1Q, 2Q

GND

1, 15

2, 14

3, 13

4, 12

5, 11

6, 10

7, 9

Description

external capacitor connection (always connected to ground)

external capacitor/resistor connection

direct reset input (active LOW)

input (LOW to HIGH triggered)

input (HIGH to LOW triggered)

output

complementary output (active LOW)

ground (0 V)

supply voltage

74HC4538

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 March 2017

4 / 21

Nexperia

Dual retriggerable precision monostable multivibrator

74HC4538

Functional description

[1]

Table 3. Function table

Inputs

↓

[1]

Outputs

↑

nCD

H = HIGH voltage level; L = LOW voltage level; X = don’t care;

↑ = positive-going transition; ↓ = negative-going transition;

= one HIGH level output pulse, with the pule width determined by C

EXT

and R

EXT

;

= one LOW level output pulse, with the pulse width determined by C

EXT

and R

EXT

(1)

(2)

(1)

nB input

(3)

nA input

(4)

nCD input

nREXT/CEXT input

ref1

ref2

ref1

ref2

nQ output

(5)

001aae737

(1) Positive edge triggering.

(2) Positive edge re-triggering (pulse lengthening).

(3) Negative edge triggering.

(4) Reset (pulse shortening).

(5) T

= 0.7 x R

EXT

x C

EXT

(see also

Figure 6.

Figure 5. Timing diagram

CEXT

GND

nCEXT

REXT

nREXT/CEXT

T = 0.7 × R

EXT

× C

EXT

nCD

001aak192

Figure 6. Connection of the external timing components R

EXT

and C

EXT

74HC4538

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5 — 17 March 2017

5 / 21

参数对比

与74HC4538PW,112相近的元器件有：74HC4538DB,118、74HC4538DB,112、74HCT4538D,118、74HC4538PW,118、74HCT4538PW,118、74HC4538D,653、74HCT4538DB,118、74HCT4538DB,112。描述及对比如下：

型号	74HC4538PW,112	74HC4538DB,118	74HC4538DB,112	74HCT4538D,118	74HC4538PW,118	74HCT4538PW,118	74HC4538D,653	74HCT4538DB,118	74HCT4538DB,112
描述	74HC4538 - Dual retriggerable precision monostable multivibrator TSSOP 16-Pin	IC MULTIVIBRATR DUAL MONO 16SSOP	IC DUAL RETRIG MULTIVIB 16-SSOP	IC DUAL RETRIG MULTIVIB 16SOIC	IC MULTIVIBRATOR DUAL 16TSSOP	IC DUAL RETRIG MULTIVIB 16TSSOP	IC MULTIVIBRATR DUAL MONO 16SOIC	IC DUAL RETRIG MULTIVIB 16SSOP	IC DUAL RETRIG MULTIVIB 16-SSOP
Brand Name	Nexperia	Nexperia	Nexperia	Nexperia	Nexperia	Nexperia	Nexperia	Nexperia	Nexperia
零件包装代码	TSSOP	SSOP1	SSOP1	SOP	TSSOP	TSSOP	SOP	SSOP1	SSOP1
包装说明	PLASTIC, TSSOP-16	PLASTIC, SSOP-16	PLASTIC, SSOP-16	PLASTIC, SO-16	TSSOP,	TSSOP,	SOP,	SSOP,	PLASTIC, SSOP-16
针数	16	16	16	16	16	16	16	16	16
制造商包装代码	SOT403-1	SOT338-1	SOT338-1	SOT109-1	SOT403-1	SOT403-1	SOT109-1	SOT338-1	SOT338-1
Reach Compliance Code	compliant	compliant	compliant	compliant	compliant	compliant	compliant	compliant	compliant
其他特性	RETRIGGERABLE	RETRIGGERABLE	RETRIGGERABLE	RETRIGGERABLE	RETRIGGERABLE	RETRIGGERABLE	RETRIGGERABLE	RETRIGGERABLE	RETRIGGERABLE
系列	HC/UH	HC/UH	HC/UH	HCT	HC/UH	HCT	HC/UH	HCT	HCT
JESD-30 代码	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16	R-PDSO-G16
JESD-609代码	e4	e4	e4	e4	e4	e4	e4	e4	e4
逻辑集成电路类型	MONOSTABLE MULTIVIBRATOR	MONOSTABLE MULTIVIBRATOR	MONOSTABLE MULTIVIBRATOR	MONOSTABLE MULTIVIBRATOR	MONOSTABLE MULTIVIBRATOR	MONOSTABLE MULTIVIBRATOR	MONOSTABLE MULTIVIBRATOR	MONOSTABLE MULTIVIBRATOR	MONOSTABLE MULTIVIBRATOR
湿度敏感等级	1	1	1	1	1	1	1	1	1
数据/时钟输入次数	2	2	2	2	2	2	2	2	2
功能数量	2	2	2	2	2	2	2	2	2
端子数量	16	16	16	16	16	16	16	16	16
最高工作温度	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C	125 °C
最低工作温度	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C	-40 °C
输出极性	COMPLEMENTARY	COMPLEMENTARY	COMPLEMENTARY	COMPLEMENTARY	COMPLEMENTARY	COMPLEMENTARY	COMPLEMENTARY	COMPLEMENTARY	COMPLEMENTARY
封装主体材料	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
封装代码	TSSOP	SSOP	SSOP	SOP	TSSOP	TSSOP	SOP	SSOP	SSOP
封装形状	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
封装形式	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	SMALL OUTLINE	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH
传播延迟（tpd）	80 ns	80 ns	80 ns	90 ns	80 ns	90 ns	80 ns	90 ns	90 ns
最大供电电压 (Vsup)	6 V	6 V	6 V	5.5 V	6 V	5.5 V	6 V	5.5 V	5.5 V
最小供电电压 (Vsup)	2 V	2 V	2 V	4.5 V	2 V	4.5 V	2 V	4.5 V	4.5 V
标称供电电压 (Vsup)	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V	5 V
表面贴装	YES	YES	YES	YES	YES	YES	YES	YES	YES
技术	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS	CMOS
温度等级	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE
端子面层	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	Nickel/Palladium/Gold (Ni/Pd/Au)	NICKEL PALLADIUM GOLD
端子形式	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
端子位置	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Base Number Matches	1	1	1	1	1	1	1	1	1
厂商名称	Nexperia	Nexperia	Nexperia	Nexperia	-	Nexperia	-	Nexperia	Nexperia
Samacsys Description	74HC4538 - Dual retriggerable precision monostable multivibrator@en-us	74HC4538 - Dual retriggerable precision monostable multivibrator@en-us	74HC4538 - Dual retriggerable precision monostable multivibrator@en-us	74HCT4538 - Dual retriggerable precision monostable multivibrator@en-us	-	74HCT4538 - Dual retriggerable precision monostable multivibrator@en-us	-	74HCT4538 - Dual retriggerable precision monostable multivibrator@en-us	-
长度	5 mm	6.2 mm	6.2 mm	9.9 mm	5 mm	5 mm	-	6.2 mm	6.2 mm
峰值回流温度（摄氏度）	NOT SPECIFIED	-	-	NOT SPECIFIED	NOT SPECIFIED	260	NOT SPECIFIED	260	260
座面最大高度	1.1 mm	2 mm	2 mm	1.75 mm	1.1 mm	1.1 mm	-	2 mm	2 mm
端子节距	0.65 mm	0.65 mm	0.65 mm	1.27 mm	0.65 mm	0.65 mm	-	0.65 mm	0.65 mm
处于峰值回流温度下的最长时间	NOT SPECIFIED	-	-	NOT SPECIFIED	NOT SPECIFIED	30	NOT SPECIFIED	30	30
宽度	4.4 mm	5.3 mm	5.3 mm	3.9 mm	4.4 mm	4.4 mm	-	5.3 mm	5.3 mm