hef4794b NXP Semiconductors, hef4794b Datasheet - Page 6

• Manufacturer Part Number: hef4794b
• Description: 8-stage Shift-and-store Register Led Driver
• Manufacturer: NXP Semiconductors

Philips Semiconductors
Note
1. Definition of symbol equivalent to 3-state outputs.
1999 Jun 30
t
t
t
t
t
t
t
t
t
t
f
SYMBOL
PZL
PLZ
THL
TLH
PZL
PLZ
WCPL
WSTRH
su
h
clk(max)
8-stage shift-and-store register LED driver
propagation delay time STR to O
OFF-to-LOW
propagation delay time STR to O
LOW-to-OFF
output transition time O
HIGH-to-LOW
output transition time O
LOW-to-HIGH
output enable time EO to O
OFF-to-LOW
output disable time EO to O
LOW-to-OFF
minimum clock pulse width LOW
minimum strobe pulse width HIGH 5
set-up time D to CP
hold time D to CP
maximum clock frequency
PARAMETER
S
S
and O
and O
n
n
;
;
S
S
n
n
';
';
;
;
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
10
15
5
10
15
+5
10
15
5
10
15
V
(V)
DD
60
30
24
80
60
24
60
20
15
+5
20
20
5
11
14
MIN.
6
140
70
55
100
40
35
85
40
30
85
40
30
100
55
50
80
40
30
30
15
12
40
30
12
30
10
5
5
5
10
22
28
TYP.
15
280
140
110
200
100
70
170
80
60
170
80
60
200
110
100
160
80
60
MAX.
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
MHz
MHz
MHz
UNIT
note 1
note 1
35 ns + (1.0 ns/pF)C
19 ns + (0.42 ns/pF)C
16 ns + (0.28 ns/pF)C
35 ns + (1.0 ns/pF)C
19 ns + (0.42 ns/pF)C
16 ns + (0.28 ns/pF)C
note 1
note 1
EXTRAPOLATION
Product specification
FORMULA
HEF4794B
TYPICAL
L
L
L
L
L
L