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CY7C265
Document #: 38-04012 Rev. *A
Page 4 of 11
AC Test Loads and Waveforms
R2 333
Ω
(403
Ω MIL)
3.0V
5V
OUTPUT
R1 500
(658
Ω MIL)
30 pF
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
≤ 5ns
≤ 5 ns
5V
OUTPUT
5pF
INCLUDING
JIG AND
SCOPE
(a) Normal Load
(b) High Z Load
OUTPUT
RTH 200Ω
5V
OUTPUT
5V
OUTPUT
R1 250
Ω
30 pF
INCLUDING
JIG AND
SCOPE
5pF
INCLUDING
JIG AND
SCOPE
(c) Normal Load
(d) High Z Load
OUTPUT
2.0V
RTH 100Ω
R1 250
Ω
R1 500
Ω
(658
Ω MIL)
R2 333
Ω
(403
Ω MIL)
R2 167
Ω
R2 167
Ω
250
Ω MIL
Equivalent to:
THÉVENIN EQUIVALENT
Equivalent to:
THÉVENIN EQUIVALENT
Test Load for -15 through -25 speeds
Test Load for -40 through -50 speeds
Switching Characteristics Over the Operating Range[2, 4]
7C265-15
7C265-25
7C265-40
7C265-50
Parameter
Description
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Unit
tAS
Address Set-Up to Clock
15
25
40
50
ns
tHA
Address Hold from Clock
0
0
0
0
ns
tCO
Clock to Output Valid
12
15
20
25
ns
tPWC
Clock Pulse Width
12
15
15
20
ns
tSES
ES Set-Up to Clock
(Sync. Enable Only)
12
15
15
15
ns
tHES
ES Hold from Clock
5
5
5
5
ns
tDI
INIT to Output Valid
15
18
25
35
ns
tRI
INIT Recovery to Clock
12
15
20
25
ns
tPWI
INIT Pulse Width
12
15
25
35
ns
tCOS
Output Valid from Clock
(Sync. Mode)
12
15
20
25
ns
tHZC
Output Inactive from Clock
(Sync. Mode)
12
15
20
25
ns
tDOE
Output Valid from E LOW
(Async. Mode)
12
15
20
25
ns
tHZE
Output Inactive from E HIGH
(Async. Mode)
12
15
20
25
ns
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