参数资料
型号: 74AHCT14
厂商: NXP Semiconductors N.V.
英文描述: Hex inverting Schmitt trigger(六反相施密特触发器)
中文描述: 六角反相施密特触发器(六反相施密特触发器)
文件页数: 2/16页
文件大小: 103K
代理商: 74AHCT14
1999 Sep 27
2
Philips Semiconductors
Product specification
Hex inverting Schmitt trigger
74AHC14; 74AHCT14
FEATURES
ESD protection:
HBM EIA/JESD22-A114-A
exceeds 2000 V
MM EIA/JESD22-A115-A
exceeds 200 V
CDM EIA/JESD22-C101
exceeds 1000 V
Balanced propagation delays
Inputsacceptsvoltageshigherthan
V
CC
For AHC only:
operates with CMOS input levels
For AHCT only:
operates with TTL input levels
Specified from
40 to +85 and +125
°
C.
DESCRIPTION
The 74AHC/AHCT14 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 74AHC/AHCT14 provide six
inverting buffers with Schmitt-trigger
action. They are capable of
transforming slowly changing input
signals into sharply defined, jitter-free
output signals.
FUNCTION TABLE
See note 1.
Note
1.
H = HIGH voltage level;
L = LOW voltage level.
INPUTS
OUTPUTS
nA
nY
L
H
H
L
QUICK REFERENCE DATA
GND = 0 V; T
amb
= 25
°
C; t
r
= t
f
3.0 ns.
Notes
1.
C
PD
is used to determine the dynamic power dissipation (P
D
in
μ
W).
P
D
= C
PD
×
V
CC2
×
f
i
+
(C
L
×
V
CC2
×
f
o
) where:
f
i
= input frequency in MHz;
f
o
= output frequency in MHz;
(C
L
×
V
CC2
×
f
o
) = sum of outputs;
C
L
= output load capacitance in pF;
V
CC
= supply voltage in Volts.
The condition is V
I
= GND to V
CC
.
2.
PINNING
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
AHC
AHCT
t
PHL
/t
PLH
propagation delay
nA to nY
input capacitance
output capacitance
power dissipation
capacitance
C
L
= 15 pF;
V
CC
= 5 V
V
I
= V
CC
or GND
3.2
4.0
ns
C
I
C
O
C
PD
3.0
4.0
10
3.0
4.0
12
pF
pF
pF
C
L
= 50 pF;
f = 1 MHz;
notes 1 and 2
PIN
SYMBOL
DESCRIPTION
1, 3, 5, 9, 11 and 13
2, 4, 6, 8, 10 and 12
7
14
1A to 6A
1Y to 6Y
GND
V
CC
data inputs
data outputs
ground (0 V)
DC supply voltage
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