CY7C9235-270JC Просмотр технического описания (PDF) - Cypress Semiconductor
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CY7C9235-270JC Datasheet PDF : 8 Pages
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PRELIMINARY
CY7C9235
AC Test Loads and Waveforms
TTL OUTPUTS
5V
OUTPUT
35 pF
INCLUDING
JIG AND
SCOPE
238Ω
(a)
238Ω
5V
3.0V
OUTPUT
170Ω
5 pF
INCLUDING
JIG AND
SCOPE
Equivalent to:
OUTPUT
170 GND
< 2 ns
(b)
THÉVENIN
99 Ω
EQUIVALENT
2.08V
ALL INPUT PULSES
90%
10%
90%
10%
< 2 ns
7C9335–9
Switching Characteristics Over the Operating Range[5]
Parameter
Description
tSD
Data Set-Up Time
tHD
Data Hold Time
tCPWH
CKW Pulse Width HIGH
tCPWL
CPW Pulse Width LOW
tCKW
Write Clock Period
tA
Access Time
tH
Data Output Hold Time From CKW Rise
tEA
Input to Output Enable
tER
Input to Output Disable[6]
Notes:
5. All AC parameters are with all outputs switching.
6. Test load (b) used for this parameter. Test load (a) used for all other AC parameters.
CY7C9235-27 CY7C9235-40
Min. Max. Min. Max. Unit
10
8
ns
0
0
ns
6.5
6.5
ns
6.5
6.5
ns
30 62.5 25 62.5
ns
10
8
ns
4
3
ns
23
20
ns
23
20
ns
Switching Waveform
PD0−9, ENA, ENN,
BYPASS, TRS_FILT,
SVS_EN, SC/D_EN,
DVB_EN
CKW
Q0–9, TRS_DET,
ENA_OUT
tER
OE
tCKW
tSD
tHD
tCPWL
tEA
tCPWH
tA
tH
Document #: 38-02012 Rev. *A
Page 6 of 8
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