hef40244b NXP Semiconductors, hef40244b Datasheet - Page 5

• Manufacturer Part Number: hef40244b
• Description: Octal Buffers With 3-state Outputs
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC CHARACTERISTICS
V
January 1995
Propagation delays
Output transition
3-state propagation delays
Output disable times
Output enable times
SS
Octal buffers with 3-state outputs
I
I
times
EO
EO
An/Bn
An/Bn
= 0 V; T
HIGH to LOW
LOW to HIGH
HIGH to LOW
LOW to HIGH
HIGH
LOW
HIGH
LOW
O
O
An/Bn
An/Bn
O
O
amb
An/Bn
An/Bn
= 25 C; C
L
= 50 pF; input transition times
V
V
DD
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
5
5
5
5
5
5
5
5
t
t
t
t
t
t
t
t
PHL
PLH
THL
TLH
PHZ
PLZ
PZH
PZL
SYMBOL
MIN.
5
20 ns
TYP.
95
40
30
85
40
30
40
20
15
30
20
15
70
35
30
75
40
30
80
35
30
90
40
30
MAX.
190
170
140
150
160
180
80
60
80
60
80
40
30
60
40
30
70
60
80
60
70
60
80
60
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
83 ns
35 ns
26 ns
82 ns
38 ns
29 ns
TYPICAL EXTRAPOLATION
see Fig.6
FORMULA
HEF40244B
Product specification
(0,24 ns/pF) C
(0,10 ns/pF) C
(0,07 ns/pF) C
(0,06 ns/pF) C
(0,03 ns/pF) C
(0,02 ns/pF) C
buffers
L
L
L
L
L
L