m3488q1 STMicroelectronics, m3488q1 Datasheet - Page 7

• Manufacturer Part Number: m3488q1
• Description: 256 X 256 Digital Switching Matrix
• Manufacturer: STMicroelectronics

A.C. TESTING, OUTPUT WAVEFORM
A.C. ELECTRICAL CHARACTERISTICS (continued)
CS1, CS2
(interface
D0 to D7
A.C. testing inputs are driven at 2.4V for a logic ”1” and 0.45V for a logic ”0”, timing measurement are made at
2.0V for a logic ”1”and 0.8V for a logic ”0”.
A1, S1,
A2, S2
(match
Signal
inputs)
ready)
(data
bus)
C/D
DR
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
S(match-WR)
H(match-WR)
H(match-RD)
t
t
t
S(match-RD)
Symbol
SH(CS-WR)
HH(CS-WR)
H(BUS-WR)
SL(CS-WR)
HL(CS-WR)
HH(CS-RD)
S(BUS-WR)
SL(CS-RD)
HL(CS-RD)
SH(CS-RD)
S(C/D-WR)
H(C/D-WR)
S(C/D)-RD)
H(C/D-RD)
t
t
PD(BUS)
HZ(BUS)
t
t
PD
W
Low level setup time
to WR falling edge
Low Level hold time
from WR rising edge
High Level setup time
to WR falling edge
High level hold time
from WR rising edge
Low level setup time
to RD falling edge
Low level hold time
from RD rising edge
High level setup time
RD falling edge
High level hold time
from RD
Setup time to write
strobe end
Hold time from
write strobe end
Setup time to read
strobe start
Hold time from read
strobe end
Setup time to write
strobe end
Hold time from
strobe end
Setup time to read
strobe start
Hold time from read
strobe end
Low state width
DR output delay
from write strobe end
(active command)
Input setup time to
write strobe end
Input hold time
from write strobe end
Propagation time
from (active) falling
Edge of read strobe
Propagation time
from (active) rising
Edge of read strobe
to high impedance state
Parameter
Active Case
Active Case
Inactive Case
Inactive Case
Active Case
Active Case
Inactive Case
Inactive Case
Instructions 5 and 6
Instruction 5, C
150pF
C
C
L
L
= 200pF
= 200pF
Test Condition
L
=
4.t
Min.
130
130
130
15
20
20
15
20
20
15
0
0
0
0
0
0
0
0
CK
Typ.
Max.
2.t
7.t
120
80
CK
CK
M3488
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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