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74HC4538DB,118

IC MULTIVIBRATR DUAL MONO 16SSOP

器件类别：逻辑    逻辑   

厂商名称：Nexperia

厂商官网：https://www.nexperia.com

器件标准：

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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
SSOP1
包装说明
PLASTIC, SSOP-16
针数
16
制造商包装代码
SOT338-1
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
e4
长度
6.2 mm
逻辑集成电路类型
MONOSTABLE MULTIVIBRATOR
湿度敏感等级
1
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
SSOP
封装形状
RECTANGULAR
封装形式
SMALL OUTLINE, SHRINK PITCH
传播延迟（tpd）
80 ns
座面最大高度
2 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
宽度
5.3 mm
Base Number Matches
1
文档预览
74HC4538
Dual retriggerable precision monostable multivibrator
Rev. 5 — 17 March 2017
Product data sheet
1
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
W
) 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
CC
.
2
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
3
Ordering information
Table 1. Ordering information
Type number Package
Temperature
range
74HC4538D
74HC4538DB
74HC4538PW
-40 °C to +125 °C
-40 °C to +125 °C
-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
4
Functional diagram
2
1
1REXT/CEXT
1CEXT
1Q
6
5
4
1A
1B
1Q
7
3
14
15
1CD
2REXT/CEXT
2CEXT
2Q
10
11
12
2A
2B
2Q
9
13
2CD
001aae727
Figure 1. Functional diagram
74HC4538
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 17 March 2017
2 / 21
Nexperia
Dual retriggerable precision monostable multivibrator
74HC4538
nB
nA
V
CC
nREXT/CEXT
V
ref1
nCEXT
GND
nCD
enable
power-on reset
V
CC
V
ref2
enable
nQ
nQ
mba338
GND
Figure 2. Logic diagram (one multivibrator)
74HC4538
All information provided in this document is subject to legal disclaimers.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 17 March 2017
3 / 21
Nexperia
Dual retriggerable precision monostable multivibrator
74HC4538
5
Pinning information
5.1 Pinning
74HC4538
1CEXT
1REXT/CEXT
1CD
1B
1A
1Q
1Q
GND
1
2
3
4
5
6
7
8
aaa-026540
16 V
CC
15 2CEXT
14 2REXT/CEXT
13 2CD
12 2B
11 2A
10 2Q
9
2Q
1CEXT
1REXT/CEXT
1CD
1B
1A
1Q
1Q
GND
1
2
3
4
5
6
7
8
aaa-026542
74HC4538
16 V
CC
15 2CEXT
14 2REXT/CEXT
13 2CD
12 2B
11 2A
10 2Q
9
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
1Q, 2Q
GND
V
CC
Pin
1, 15
2, 14
3, 13
4, 12
5, 11
6, 10
7, 9
8
16
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.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 17 March 2017
4 / 21
Nexperia
Dual retriggerable precision monostable multivibrator
74HC4538
6
Functional description
[1]
Table 3. Function table
Inputs
nA
↓
H
X
[1]
Outputs
nB
L
↑
X
nCD
H
H
L
nQ
nQ
L
H
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)
(1)
(2)
(1)
nB input
(3)
nA input
(4)
nCD input
nREXT/CEXT input
V
ref1
V
ref2
V
ref1
V
ref2
nQ output
T
T
T
(5)
001aae737
(1) Positive edge triggering.
(2) Positive edge re-triggering (pulse lengthening).
(3) Negative edge triggering.
(4) Reset (pulse shortening).
(5) T
W
= 0.7 x R
EXT
x C
EXT
(see also
Figure 6.
Figure 5. Timing diagram
CEXT
GND
nCEXT
nA
nB
REXT
V
CC
nREXT/CEXT
nQ
nQ
T
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.
© Nexperia B.V. 2017. All rights reserved.
Product data sheet
Rev. 5 — 17 March 2017
5 / 21
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参数对比
与74HC4538DB,118相近的元器件有：74HC4538DB,112、74HCT4538D,118、74HC4538PW,118、74HCT4538PW,118、74HC4538D,653、74HCT4538DB,118、74HCT4538DB,112、74HC4538PW,112。描述及对比如下：
型号 74HC4538DB,118 74HC4538DB,112 74HCT4538D,118 74HC4538PW,118 74HCT4538PW,118 74HC4538D,653 74HCT4538DB,118 74HCT4538DB,112 74HC4538PW,112
描述 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 74HC4538 - Dual retriggerable precision monostable multivibrator TSSOP 16-Pin
Brand Name Nexperia Nexperia Nexperia Nexperia Nexperia Nexperia Nexperia Nexperia Nexperia
零件包装代码 SSOP1 SSOP1 SOP TSSOP TSSOP SOP SSOP1 SSOP1 TSSOP
包装说明 PLASTIC, SSOP-16 PLASTIC, SSOP-16 PLASTIC, SO-16 TSSOP, TSSOP, SOP, SSOP, PLASTIC, SSOP-16 PLASTIC, TSSOP-16
针数 16 16 16 16 16 16 16 16 16
制造商包装代码 SOT338-1 SOT338-1 SOT109-1 SOT403-1 SOT403-1 SOT109-1 SOT338-1 SOT338-1 SOT403-1
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 HCT HC/UH HCT HC/UH HCT HCT HC/UH
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 SSOP SSOP SOP TSSOP TSSOP SOP SSOP SSOP TSSOP
封装形状 RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
封装形式 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 SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
传播延迟（tpd） 80 ns 80 ns 90 ns 80 ns 90 ns 80 ns 90 ns 90 ns 80 ns
最大供电电压 (Vsup) 6 V 6 V 5.5 V 6 V 5.5 V 6 V 5.5 V 5.5 V 6 V
最小供电电压 (Vsup) 2 V 2 V 4.5 V 2 V 4.5 V 2 V 4.5 V 4.5 V 2 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 Nickel/Palladium/Gold (Ni/Pd/Au)
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 74HCT4538 - Dual retriggerable precision monostable multivibrator@en-us - 74HCT4538 - Dual retriggerable precision monostable multivibrator@en-us - 74HCT4538 - Dual retriggerable precision monostable multivibrator@en-us - 74HC4538 - Dual retriggerable precision monostable multivibrator@en-us
长度 6.2 mm 6.2 mm 9.9 mm 5 mm 5 mm - 6.2 mm 6.2 mm 5 mm
座面最大高度 2 mm 2 mm 1.75 mm 1.1 mm 1.1 mm - 2 mm 2 mm 1.1 mm
端子节距 0.65 mm 0.65 mm 1.27 mm 0.65 mm 0.65 mm - 0.65 mm 0.65 mm 0.65 mm
宽度 5.3 mm 5.3 mm 3.9 mm 4.4 mm 4.4 mm - 5.3 mm 5.3 mm 4.4 mm
峰值回流温度（摄氏度） - - NOT SPECIFIED NOT SPECIFIED 260 NOT SPECIFIED 260 260 NOT SPECIFIED
处于峰值回流温度下的最长时间 - - NOT SPECIFIED NOT SPECIFIED 30 NOT SPECIFIED 30 30 NOT SPECIFIED
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器件捷径:
00 01 02 03 04 05 06 07 08 09 0A 0C 0F 0J 0L 0M 0R 0S 0T 0Z 10 11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 1H 1K 1M 1N 1P 1S 1T 1V 1X 1Z 20 21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 2G 2K 2M 2N 2P 2Q 2R 2S 2T 2W 2Z 30 31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 3G 3H 3J 3K 3L 3M 3N 3P 3R 3S 3T 3V 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4M 4N 4P 4S 4T 50 51 52 53 54 55 56 57 58 59 5A 5B 5C 5E 5G 5H 5K 5M 5N 5P 5S 5T 5V 60 61 62 63 64 65 66 67 68 69 6A 6C 6E 6F 6M 6N 6P 6R 6S 6T 70 71 72 73 74 75 76 77 78 79 7A 7B 7C 7M 7N 7P 7Q 7V 7W 7X 80 81 82 83 84 85 86 87 88 89 8A 8D 8E 8L 8N 8P 8S 8T 8W 8Y 8Z 90 91 92 93 94 95 96 97 98 99 9A 9B 9C 9D 9F 9G 9H 9L 9S 9T 9W
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