CY7C4425-35AI 데이터 시트보기 (PDF) - Cypress Semiconductor
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CY7C4425-35AI Datasheet PDF : 25 Pages
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CY7C4425/4205/4215
CY7C4225/4235/4245
Capacitance[7]
Parameter
CIN
COUT
Description
Input Capacitance
Output Capacitance
AC Test Loads and Waveforms[8, 9]
5V
OUTPUT
R11.1K Ω
CL
INCLUDING
JIG AND
SCOPE
R2
680Ω
42X5–4
Equivalent to:
THEÉVENIN
OUTPUT
EQUIVALENT
410Ω
1.91V
Test Conditions
TA = 25°C, f = 1 MHz,
VCC = 5.0V
Max.
Unit
5
pF
7
pF
3.0V
GND
< 3 ns
ALL INPUT PULSES
90%
10%
90%
10%
< 3 ns
42X5–5
Notes:
7. Tested initially and after any design or process changes that may affect these parameters.
8. CL = 30 pF for all AC parameters except for tOHZ.
9. CL = 5 pF for tOHZ.
Switching Characteristics Over the Operating Range
Parameter
tS
tA
tCLK
tCLKH
tCLKL
tDS
tDH
tENS
tENH
tRS
tRSR
tRSF
tPRT
tRTR
tOLZ
tOE
tOHZ
tWFF
tREF
tPAFasynch
Description
Clock Cycle Frequency
Data Access Time
Clock Cycle Time
Clock HIGH Time
Clock LOW Time
Data Set-Up Time
Data Hold Time
Enable Set-Up Time
Enable Hold Time
Reset Pulse Width[10]
Reset Recovery Time
Reset to Flag and Output Time
Retransmit Pulse Width
Retransmit Recovery Time
Output Enable to Output in Low Z[11]
Output Enable to Output Valid
Output Enable to Output in High Z[12]
Write Clock to Full Flag
Read Clock to Empty Flag
Clock to Programmable Almost-Full Flag[12]
(Asynchronous mode, VCC/SMODE tied to VCC)
7C42X5-10
Min. Max.
100
2
8
10
4.5
4.5
3
0.5
3
0.5
10
8
10
12
12
0
3
7
3
7
8
8
12
7C42X5-15
Min. Max.
66.7
2 10
15
6
6
4
1
4
1
15
10
15
15
15
0
3
8
3
8
10
10
16
7C42X5-25
Min. Max.
40
2 15
25
10
10
6
1
6
1
25
15
25
25
25
0
3 12
3 12
15
15
20
7C42X5-35
Min. Max.
28.6
2 20
35
14
14
7
2
7
2
35
20
35
35
35
0
3 15
3 15
20
20
25
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5
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