CY7C287 查看數據表（PDF） - Cypress Semiconductor
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CY7C287 Datasheet PDF : 8 Pages
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CY7C287
Capacitance[4]
Parameter
CIN
COUT
Description
Input Capacitance
Output Capacitance
AC Test Loads and Waveform[4]
Test Conditions
TA = 25°C, f = 1 MHz,
VCC = 5.0V
Max.
Unit
10
pF
10
pF
5V
OUTPUT
R1 500Ω
(658Ω MIL)
5V
OUTPUT
R1 500Ω
(658Ω MIL)
30 pF
INCLUDING
R2
5 pF
333Ω
(403Ω MIL)
INCLUDING
R2
333Ω
(403Ω MIL)
JIG AND
SCOPE
JIG AND
C287-4 SCOPE
C287-6
(a) Normal Load
(b) High Z Load
3.0V
GND
≤ 5 ns
ALL INPUT PULSES
90%
10%
90%
10%
≤ 5 ns
C287-5
Equivalent to:
THÉVENIN EQUIVALENT
OUTPUT
200Ω
Commercial
2.0V
OUTPUT
250Ω
Military
1.9V
C287-7
Switching Characteristics Over the Operating Range[3,4]
Parameter
Description
tSA
Address Set-Up to Clock HIGH
tHA
Address Hold from Clock HIGH
tCO
Clock HIGH to Output Valid
tHZE
Output High Z from E
tDOE
Output Valid from E
tPWC
tSEs[6]
tHEs[6]
tHZC[6]
tCOs[6]
Clock Pulse Width
ES Set-Up to Clock HIGH
ES Hold from Clock HIGH
Output High Z from CLK/ES
Output Valid from CLK/ES
Notes:
6. Parameters with synchronous ES option.
7C287−45
Min. Max.
45
0
15
15
15
15
12
5
20
20
7C287−55
Min. Max.
55
0
20
20
20
20
15
8
25
25
7C287−65
Min. Max.
65
0
25
25
25
25
18
10
30
30
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
3
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