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Description
CY7C197BN(2011) View Datasheet(PDF) - Cypress Semiconductor
Part Name
Description
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CY7C197BN
(Rev.:2011)
256-Kb (256 K × 1) Static RAM
Cypress Semiconductor
CY7C197BN Datasheet PDF : 13 Pages
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AC Test Loads
[5]
Output Loads
R1
V
CC
C1
R2
CY7C197BN
V
CC
Output
Output Loads
for
t
HZCE
& t
HZWE
R3
C2
R4
(A)*
Thevenin Equivalent
Output
V
TH
R
TH
V
CC
90%
V
SS
10%
* including scope and jig capacitance
AC Test Conditions
Parameter
C1
C2
R1
R2
R3
R4
R
TH
V
TH
Description
Capacitor 1
Capacitor 2
Resistor 1
Resistor 2
Resistor 3
Resistor 4
Resistor Thevenin
Voltage Thevenin
Rise Time
1 V/ns
(B)*
All Input Pulses
90%
10%
Fall Time
1 V/ns
Nom.
Unit
30
pF
5
480
255
480
255
167
1.73
V
Note
5. Test Conditions assume a transition time of 3 ns or less, timing reference levels of 1.5 V, input pulse levels of 0 to 3.0 V.
Document #: 001-06447 Rev. *C
Page 5 of 13
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