74hc7541 NXP Semiconductors, 74hc7541 Datasheet - Page 6

• Manufacturer Part Number: 74hc7541
• Description: Octal Schmitt Trigger Buffer/line Driver; 3-state
• Manufacturer: NXP Semiconductors

Philips Semiconductors
DC CHARACTERISTICS FOR 74HCT
For the DC characteristics see
Transfer characteristics are given below (not applicable for OE
Output capability: bus driver
I
Note to HCT types
The value of additional quiescent supply current ( I
To determine I
AC CHARACTERISTICS FOR 74HCT
GND = 0 V; t
TRANSFER CHARACTERISTICS FOR 74HCT
Voltages are referred to GND (ground = 0 V)
December 1990
CC
INPUT
OE
OE
A
SYMBOL
t
t
t
t
SYMBOL PARAMETER
V
V
V
PHL
PZH
PHZ
THL
n
T
T
H
Octal Schmitt trigger buffer/line driver; 3-state
category: MSI
1
2
/ t
/ t
/ t
/ t
TLH
PLH
PZL
PLZ
positive-going threshold
negative-going threshold 0.70
hysteresis (V
r
PARAMETER
propagation delay
3-state output enable time
3-state output disable time
output transition time
= t
A
OE
OE
UNIT LOAD COEFFICIENT
1.30
1.30
0.20
n
CC
f
to Y
n
n
= 6 ns; C
per input, multiply this value by the unit load coefficient shown in the table below.
to Y
to Y
n
n
n
T
L
= 50 pF
V
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
T
)
min. typ. max. min. max. min. max.
0.80
0.17
0.17
min typ. max min. max
0.23
0.23
19
18
20
5
25
25
CC
2.0
2.1
32
32
32
12
) for a unit load of 1 is given in the family specifications.
T
6
74HCT
amb
T
0.64
0.74
74HCT
amb
40 to 85
40 to 85
n
( C)
inputs).
( C)
2.0
2.1
40
40
40
15
0.60
0.70
min.
40 to 125
40 to 125
2.0
2.1
48
48
48
18
max.
.
V
V
V
UNIT
ns
ns
ns
ns
UNIT
74HC/HCT7541
V
4.5
5.5
4.5
5.5
4.5
5.5
(V)
TEST CONDITIONS
4.5
4.5
4.5
4.5
V
CC
TEST CONDITIONS
(V)
Product specification
CC
WAVEFORMS
Figs 6 and 7
Figs 6 and 7
Figs 6 and 7
WAVEFORMS
Fig.8
Fig.8
Fig.8
Fig.8