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PDSP16256
21
Electrical Characteristics
The Electrical Characteristics are guaranteed over the following range of operating conditions, unless
otherwise stated:
Commercial: T
AMB
= 0
°
C to+70
°
C, V
DD
= +5V
±
5%, GND = 0V
IndustriaL: T
AMB
= -40
°
C to +85
°
C, V
DD
= +5V
±
10%, GND = 0V
Military: T
AMB
=
-55
°
C to +125
°
C, V
DD
= +5V
±
10%, GND = 0V
Static Characteristics
Min.
Typ.
Max.
Output high voltage
Output low voltage
Input high voltage (CMOS)
Input low voltage (CMOS)
Input high voltage (TTL)
Input low voltage (TTL)
Input leakage current
Input capacitance
Output leakage current
Output short circuit current
10
-
0·4
-
1·0
-
0·8
1
10
1
50
300
2·4
-
3·5
-
2·0
-
2
10
2
50
10
V
OH
V
OL
V
IH
V
IL
V
IH
V
IL
I
IN
C
IN
I
OZ
I
OS
I
OH
= 4mA
I
OH
= 4mA
SCLK input only
SCLK input only
All other inputs
All other inputs
GND < V
IN
< V
DD
GND < V
OUT
< V
DD
V
DD
=
1
5·5V
V
V
V
V
V
V
μ
A
pF
μ
A
mA
Units
Value
Conditions
Characteristic
Symbol
Max.
Min.
Input signal setup to clock rising edge
Input signal hold after clock rising edge
OEN
set up to clock rising edge
OEN
hold after clock rising edge
Clock rising edge to output signal valid
Clock frequency
Clock high time
Clock low time
Clock to data valid F bus from high impedance
Clock to data high impedance F bus
V
DD
current
ns
ns
ns
ns
ns
MHz
ns
ns
ns
ns
mA
8
4
20
4
5
-
18
11
-
-
-
t
HS
t
HH
t
OS
t
OH
t
CD
f
SCLK
t
CH
t
CL
t
CVF
t
CZF
I
DD
-
-
-
-
28
20
-
-
30
30
380
30pF
See Fig. 23
See Fig. 23
See Note 1
NOTE 1. V
DD
=
1
5·5V, outputs unloaded, clock frequency = Max.
Commercial
Conditions
Units
Characteristic
Symbol
Switching Characteristics (see Figs. 20, 21 and 22)
Max.
-
-
-
-
26
25
-
-
30
30
400
Min.
Max.
8
4
20
4
5
-
20
12
-
-
-
-
-
-
28
20
-
-
30
30
380
Industrial
Min.
8
4
20
4
5
-
20
12
-
-
Military