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參數(shù)資料
| 型號： | MC74F14N |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | Supervisors with Programmable Watchdog Window 6-SOT-23 -40 to 85 |
| 中文描述： | F/FAST SERIES, HEX 1-INPUT INVERT GATE, PDIP14 |
| 封裝： | 646-06 |
| 文件頁數(shù)： | 1/3頁 |
| 文件大?。?/td> | 54K |
| 代理商： | MC74F14N |
4-14
FAST AND LS TTL DATA
SCHMITT TRIGGERS DUAL 4-INPUT
NAND/HEX INVERTERS
The MC54/74F13 and MC54/74F14 contain logic gates/inverters which ac-
cept standard TTL input signals and provide standard TTL output levels. They
are capable of transforming slowly changing input signals into sharply de-
fined, jitter-free output signals. Additionally, they have greater noise margin
than conventional inverters.
Each circuit contains a Schmitt trigger followed by a Darlington level shifter
and a phase splitter driving a TTL totem pole output. The Schmitt trigger uses
positive feedback to effectively speed up slow input transitions and provide
different input threshold voltages for positive and negative-going transitions.
This hysteresis between the positive-going and negative-going input thresh-
olds (typically 800 mV) is determined internally by resistor ratios and is essen-
tially insensitive to temperature and supply voltage variations.
VCC
14
GND
13
12
11
10
9
8
2
O
1
A
3
A
4
O
5
A
6
O
7
VCC
14
GND
13
12
11
10
9
8
2
B
1
A
3
4
C
5
D
6
O
7
MC54/74F13
MC54/74F14
LOGIC AND CONNECTION DIAGRAMS
D
C
N/C
B
A
O
N/C
A
O
A
O
A
O
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54, 74
4.5
5.0
5.5
V
TA
Operating Ambient Temperature Range
54
–55
25
125
°
C
74
0
25
70
IOH
Output Current — High
54, 74
–1.0
mA
IOL
Output Current — Low
54, 74
20
mA
MC54FXXJ
MC74FXXN
MC74FXXD
Ceramic
Plastic
SOIC
D SUFFIX
SOIC
CASE 751A-02
N SUFFIX
PLASTIC
CASE 646-06
J SUFFIX
CERAMIC
CASE 632-08
MC54/74F13
MC54/74F14
SCHMITT TRIGGERS
DUAL 4-INPUT
NAND/HEX INVERTERS
FAST
SCHOTTKY TTL
14
1
14
1
ORDERING INFORMATION
14
1
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