參數(shù)資料
型號(hào): 74HC14PW
廠商: Texas Instruments, Inc.
英文描述: HEX SCHMITT-TRIGGER INVERTERS
中文描述: 六角施密特觸發(fā)器逆變器
文件頁(yè)數(shù): 17/23頁(yè)
文件大小: 120K
代理商: 74HC14PW
2003 Oct 30
17
Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
74HC14; 74HCT14
APPLICATION INFORMATION
The slow input rise and fall times cause additional power
dissipation. This can be calculated using the following
formula:
P
ad
= f
i
×
(t
r
×
I
CC(AV)
+ t
f
×
I
CC(AV)
)
×
V
CC
.
Where:
P
ad
= additional power dissipation (
μ
W);
f
i
= input frequency (MHz);
t
r
= input rise time (
μ
s); 10% to 90%;
t
f
= input fall time (
μ
s); 10% to 90%;
I
CC(AV)
= average additional supply current (
μ
A).
I
CC(AV)
differs with positive or negative input transitions, as
shown in Figs 16 and 17.
For 74HC/HCT14 used in a relaxation oscillator circuit,
see Fig.18.
Note to application information
All values given are typical unless otherwise specified.
handbook, halfpage
ICC(AV)
(
μ
A)
0
2
4
6
300
100
0
200
MNA852
VCC (V)
positive - going
edge
edge
negative - going
Fig.16 Average I
CC
for 74HC14 Schmitt trigger
devices.
Linear change of V
I
between 0.1V
CC
to 0.9V
CC
handbook, halfpage
ICC(AV)
(
μ
A)
0
2
4
6
300
100
0
200
MNA853
VCC (V)
egde
edge
positive - going
egde
edge
negative - going
Fig.17 Average I
CC
for HCT Schmitt trigger
devices.
Linear change of V
I
between 0.1V
CC
to 0.9V
CC
.
handbook, halfpage
MNA854
R
C
Fig.18 Relaxation oscillator using 74HC/HCT14.
74HC14 : f
1
T
0.8 RC
=
74HCT14 : f
1
T
0.67 RC
=
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參數(shù)描述
74HC14PW,112 功能描述:變換器 HEX INVERTER SCHMITT RoHS:否 制造商:NXP Semiconductors 電路數(shù)量:6 邏輯系列:74ABT 邏輯類(lèi)型:BiCMOS 高電平輸出電流:- 15 mA 低電平輸出電流:20 mA 傳播延遲時(shí)間:2.2 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 工作溫度范圍: 封裝 / 箱體:DIP-14 封裝:Tube
74HC14PW,118 功能描述:變換器 HEX INVERTER SCHMITT TRIGGER RoHS:否 制造商:NXP Semiconductors 電路數(shù)量:6 邏輯系列:74ABT 邏輯類(lèi)型:BiCMOS 高電平輸出電流:- 15 mA 低電平輸出電流:20 mA 傳播延遲時(shí)間:2.2 ns 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 工作溫度范圍: 封裝 / 箱體:DIP-14 封裝:Tube
74HC14PW/AUJ 制造商:NXP Semiconductors 功能描述:74HC14PW/TSSOP14/REEL13//AU - Tape and Reel 制造商:NXP Semiconductors 功能描述:IC HEX SCHMITT-TRIG INV 14TSSOP
74HC14PW/S400,118 制造商:NXP Semiconductors 功能描述:- Tape and Reel
74HC14PW112 制造商:NXP Semiconductors 功能描述:IC HEX INVERTER SCHMITT TRIGGER TSSOP-