CY7C271A Datasheet, PDF (3/10 Pages) Cypress Semiconductor – 32K x 8 Power Switched and Reprogrammable PROM

CY7C271A
AC Test Loads and Waveforms
R1 500Ω
5V
658Ω MIL
R1 500Ω
5V
658Ω MIL
3.0V
OUTPUT
OUTPUT
30 pF
R2 333Ω
403Ω MIL
5 pF
R2 333Ω _GND
403Ω MIL
INCLUDING
INCLUDING
≤ 5 ns
JIG AND
JIG AND
SCOPE
SCOPE
(a) NormalLoad
(b) High-Z Load
Equivalent to:
OUTPUT
THÉVENIN EQUIVALENT
200Ω
250Ω MIL
2.00V Commercial
1.90V MIL
ALL INPUT PULSES
90%
10%
90%
10%
≤ 5 ns
Switching Characteristics Over the Operating Range^{[2, 3]}
7C271A-25
7C271A-30
7C271A-35
7C271A-45
Parameter
Description
Min. Max. Min. Max. Min. Max. Min. Max. Unit
t_AA
t_ACS
Address to Output Valid
CS₁/CS₂ Active to
Output Valid
25
30
35
45
ns
12
18
18
18
ns
t_ACE
t_HZCS
t_HZCE
t_PU
t_PD
CE Active to Output Valid
30
35
35
45
ns
CS₁/CS₂ Inactive to High Z
12
18
18
18
ns
CE Inactive to High Z
12
18
18
18
ns
CE Active to Power-Up
0
0
0
0
ns
CE Inactive to
Power-Down
30
35
40
40
ns
t_OH
Output Data Hold
0
0
0
0
ns
Document #: 38-04013 Rev. *B
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