MC14557 ONSEMI [ON Semiconductor], MC14557 Datasheet - Page 4

• Manufacturer Part Number: MC14557
• Description: 1-to-64 Bit Variable Length Shift Register
• Manufacturer: ONSEMI [ON Semiconductor]

Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î Î
7. The formulas given are for the typical characteristics only at 25 _ C.
8. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
SWITCHING CHARACTERISTICS
Rise and Fall Time, Q or Q Output
Propagation Delay, Clock or CE to Q or Q
Propagation Delay, Reset to Q or Q
Pulse Width, Clock
Pulse Width, Reset
Clock Frequency (50% Duty Cycle)
Setup Time, A or B to Clock or CE
Hold Time, Clock or CE to A or B
Rise and Fall Time, Clock
Rise and Fall Time, Reset or CE
Removal Time, Reset to Clock or CE
t
t
t
t
t
t
t
t
t
Worst case condition: L1 = L2 = L4 = L8 =
L16 = L32 = V
Best case condition: L32 = V
Don’t Care (Any register length from 33 to 64)
Best case condition: L1 = L2 = L4 = L8 = L16 =
L32 = V
Worst case condition: L32 = V
Don’t Care (Any register length from 33 to 64)
TLH
TLH
TLH
PLH
PLH
PLH
PLH
PLH
PLH
, t
, t
, t
, t
, t
, t
, t
, t
, t
THL
THL
THL
PHL
PHL
PHL
PHL
PHL
PHL
SS
= (1.5 ns/pF) C
= (0.75 ns/pF) C
= (0.55 ns/pF) C
= (1.7 ns/pF) C
= (0.66 ns/pF) C
= (0.5 ns/pF) C
= (1.7 ns/pF) C
= (0.66 ns/pF) C
= (0.5 ns/pF) C
(Register Length = 1)
SS
(Register Length = 1)
Characteristic
L
L
L
L
L
L
L
L
L
+ 25 ns
+ 215 ns
+ 65 ns
+ 215 ns
+ 70 ns
+ 12.5 ns
+ 9.5 ns
+ 97 ns
+ 97 ns
DD
DD
, L1 through L16 =
, L1 through L16 =
(7.)
(C
L
= 50 pF, T
http://onsemi.com
A
= 25 _ C)
MC14557B
Symbol
t
t
WH(rst)
WH(cl)
t
t
t
t
t
t
PLH
PLH
t
TLH
THL
PHL
PHL
t
rem
f
t
t
t
su
t
t
cl
h
r
r
f
f
,
,
4
,
,
,
V
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
10
15
DD
5
5
5
5
5
5
5
5
5
5
5
5
5
Min
200
100
300
140
100
700
290
145
400
165
200
100
400
185
160
75
60
10
85
80
70
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
No Limit
Typ
– 150
13.0
– 60
– 50
100
300
130
300
130
150
350
130
3.0
7.5
50
40
90
95
95
45
35
70
50
85
45
50
25
22
80
40
35
—
—
—
5
0
(8.)
Max
200
100
600
260
180
600
260
190
1.7
5.0
6.7
80
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
15
—
—
—
5
4
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
—
ns
s