hef4894b NXP Semiconductors, hef4894b Datasheet - Page 4

• Manufacturer Part Number: hef4894b
• Description: 12-stage Shift-and-store Register Led Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
DC CHARACTERISTICS
V
AC CHARACTERISTICS
V
AC CHARACTERISTICS
V
January 1995
output voltage
LOW; O
output leakage
current; HIGH; O
Dynamic power
dissipation per package
(P)
Propagation delay
CP to O
HIGH to LOW
Propagation delay
CP to O
LOW to HIGH
Propagation delay
CP to O
HIGH to LOW
Propagation delay
CP to O
LOW to HIGH
SS
SS
SS
12-stage shift-and-store register LED driver
PARAMETER
= 0 V.
= 0 V; T
= 0 V; T
PARAMETER
s
s
s
s
n
PARAMETER
’
’
amb
amb
= 25 C; input transition times
= 25 C; C
n
V
(V)
10
15
10
15
5
5
DD
L
= 50 pF; input transition times
SYMBOL
V
I
OZH
OL
V
(V)
10
15
10
15
10
15
10
15
5
5
5
5
DD
V
(V)
10
15
5
DD
t
t
t
t
PHL
PLH
PHL
PLH
SYMBOL
MIN.
TYPICAL FORMULA FOR P
40
20 ns.
MAX.
15000 f
0.75
0.75
0.75
1200 f
5550 f
2
2
2
TYP.
160
130
120
130
65
45
55
40
50
40
60
45
i
i
i
MIN.
T
4
( W)
amb
20 ns.
(f
(f
(f
o
o
o
MAX.
25
C
C
C
320
130
260
240
100
260
120
110
90
80
80
90
( C)
MAX.
L
L
L
0.75
0.75
0.75
)
)
)
2
2
2
V
V
V
DD
DD
DD
UNIT
MIN.
2
2
2
ns
ns
ns
ns
where:
R
f
f
C
V
85
i
o
DD
load
= input frequency (MHz),
L
(f
MAX.
132 ns
53 ns
37 ns
102 ns
44 ns
32 ns
92 ns
39 ns
32 ns
102 ns
49 ns
37 ns
= output frequency (MHz),
1.5
1.5
1.5
o
= load capacitance (pF),
15
15
15
C
= supply voltage (V)
=
L
TYPICAL EXTRAPOLATION
) = sum of outputs
V
UNIT
(0.23 ns/pF) C
(0.23 ns/pF) C
(0.23 ns/pF) C
A
(0.23 ns/pF) C
(0.16 ns/pF) C
(0.16 ns/pF) C
(0.55 ns/pF) C
(0.16 ns/pF) C
(0.16 ns/pF) C
(0.55 ns/pF) C
(0.55 ns/pF) C
(0.55 ns/pF) C
FORMULA
V
V
I
I
o
o
Product specification
= V
= 15 V
HEF4894B
CONDITIONS
< 20 mA
SS
L
L
L
L
L
L
L
L
L
or V
L
L
L
DD
;