hef4543b NXP Semiconductors, hef4543b Datasheet - Page 5

• Manufacturer Part Number: hef4543b
• Description: Bcd To 7-segment Latch/decoder/driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
AC CHARACTERISTICS
V
January 1995
Propagation delays
Output transition times
Minimum LD
Set-up time
Hold time
SS
BCD to 7-segment latch/decoder/driver
D
LD
BI
pulse width; HIGH
D
D
= 0 V; T
n
n
n
HIGH to LOW
LOW to HIGH
HIGH to LOW
LOW to HIGH
HIGH to LOW
LOW to HIGH
HIGH to LOW
LOW to HIGH
O
O
LD
LD
O
n
n
n
amb
= 25 C; C
L
= 50 pF; input transition times
V
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
V
DD
5
5
5
5
5
5
5
5
5
5
5
t
t
t
t
t
t
t
t
t
t
t
PHL
PLH
PHL
PLH
PHL
PLH
THL
TLH
WLDH
su
hold
SYMBOL
MIN.
60
30
20
40
20
15
15
20
0
5
20 ns
TYP.
180
180
170
190
145
125
75
55
75
55
80
60
80
60
65
45
55
40
60
30
20
60
30
20
30
15
10
20
15
5
0
0
5
MAX.
360
150
360
150
340
160
120
380
160
120
290
130
250
120
120
110
110
110
90
80
60
40
60
40
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
TYPICAL EXTRAPOLATION
153 ns
153 ns
143 ns
163 ns
118 ns
64 ns
47 ns
64 ns
47 ns
69 ns
52 ns
69 ns
52 ns
54 ns
37 ns
98 ns
54 ns
32 ns
10 ns
10 ns
9 ns
6 ns
9 ns
6 ns
FORMULA
Product specification
(0,55 ns/pF) C
(0,23 ns/pF) C
(0,16 ns/pF) C
(0,55 ns/pF) C
(0,23 ns/pF) C
(0,16 ns/pF) C
(0,55 ns/pF) C
(0,23 ns/pF) C
(0,16 ns/pF) C
(0,55 ns/pF) C
(0,23 ns/pF) C
(0,16 ns/pF) C
(0,55 ns/pF) C
(0,23 ns/pF) C
(0,16 ns/pF) C
(0,55 ns/pF) C
(0,23 ns/pF) C
(0,16 ns/pF) C
(0,42 ns/pF) C
(0,28 ns/pF) C
(0,42 ns/pF) C
(0,28 ns/pF) C
HEF4543B
(1,0 ns/pF) C
(1,0 ns/pF) C
MSI
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L