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参数资料
| 型号： | 74HC5555D/T3 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO16 |
| 封装： | PLASTIC, SO-16 |
| 文件页数： | 12/23页 |
| 文件大小： | 108K |
| 代理商： | 74HC5555D/T3 |
September 1993
2
Philips Semiconductors
Product specication
Programmable delay timer with oscillator
74HC/HCT5555
FEATURES
Positive and negative edge
triggered
Retriggerable or non-retriggerable
Programmable delay
minimum: 100 ns
maximum: depends on input
frequency and division ratio
Divide-by range of 2 to 224
Direct reset terminates output
pulse
Very low power consumption in
triggered start mode
3 oscillator operating modes:
– RC oscillator
– Crystal oscillator
– External oscillator
Device is unaffected by variations
in temperature and VCC when using
an external oscillator
Automatic power-ON reset
Schmitt trigger action on both
trigger inputs
Direct drive for a power transistor
Low power consumption in active
mode with respect to TTL type
timers
High precision due to digital timing
Output capability: 20 mA
ICC category: MSI.
APPLICATIONS
Motor control
Attic fan timers
Delay circuits
Automotive applications
Precision timing
Domestic appliances.
GENERAL DESCRIPTION
The 74HC/HCT5555 are high-speed
Si-gate CMOS devices and are pin
compatible with low power Schottky
TTL (LSTTL). They are specified in
compliance with JEDEC standard
no. 7A.
The 74HC/HCT5555 are precision
programmable delay timers which
consist of:
24-stage binary counter
integrated oscillator (using external
timing components)
retriggerable/non-retriggerable
monostable
automatic power-ON reset
output control logic
oscillator control logic
overriding asynchronous master
reset (MR).
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25 °C; tr = tf = 6 ns.
Notes
1. CPD is used to determine the dynamic power dissipation (PD in W):
PD = CPD x VCC2 x fi + Σ(CL x VCC2 x fo) where:
fi = input frequency in MHz
fo = output frequency in MHz
Σ(CL x VCC2 x fo) = sum of outputs.
CL = output load capacitance in pF
VCC = supply voltage in V
2. For HC the condition is VI = GND to VCC
For HCT the condition is VI = GND to VCC 1.5 V.
ORDERING INFORMATION
SYMBOL
PARAMETER
CONDITIONS
TYP.
UNIT
tPHL/tPLH
propagation delay
CL = 15 pF;
VCC = 5 V
A, B to Q/Q24
24
ns
MR to Q/Q19
20
ns
RS to Q/Q26
28
ns
CI
input capacitance
3.5
pF
CPD
power dissipation
capacitance per buffer
notes 1 and 2
23
36
pF
EXTENDED TYPE
NUMBER
PACKAGE
PINS
PIN POSITION
MATERIAL
CODE
74HC/HCT5555N
16
DIL
plastic
SOT38Z
74HC/HCT5555D
16
SO16
plastic
SOT109A
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 74HC5555N | 功能描述:计时器和支持产品 PROG DELAY TIMER W/SCH TRIGGER RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel |
| 74HC5555N,112 | 功能描述:计时器和支持产品 PROG DELAY TIMER RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel |
| 74HC5555N112 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
| 74HC563D | 功能描述:闭锁 OCTAL 3-STATE TRANS LATCH INV RoHS:否 制造商:Micrel 电路数量:1 逻辑类型:CMOS 逻辑系列:TTL 极性:Non-Inverting 输出线路数量:9 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:12 V 电源电压-最小:5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-16 封装:Reel |
| 74HC563D,652 | 功能描述:闭锁 OCTAL 3-STATE TRANS RoHS:否 制造商:Micrel 电路数量:1 逻辑类型:CMOS 逻辑系列:TTL 极性:Non-Inverting 输出线路数量:9 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:12 V 电源电压-最小:5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-16 封装:Reel |
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