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CY62138VN Datasheet(PDF) 3 Page - Cypress Semiconductor

Part # CY62138VN
Description  256K x 8 Static RAM
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY62138VN Datasheet(HTML) 3 Page - Cypress Semiconductor

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CY62138VN MoBL®
Document #: 001-06513 Rev. **
Page 3 of 8
AC Test Loads and Waveforms
Notes:
4. Test conditions assume signal transition time of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to VCC typ., and output loading of the specified
IOL/IOH and 30-pF load capacitance.
5. CE is the combination of both CS1 and CS2.
Parameters
Value
Unit
R1
1105
Ohms
R2
1550
Ohms
RTH
645
Ohms
VTH
1.75
Volts
Data Retention Characteristics (Over the Operating Range)
Parameter
Description
Conditions[4]
Min.
Typ.[1]
Max.
Unit
VDR
VCC for Data Retention
1.0
3.6
V
ICCDR
Data Retention Current
VCC = 1.0V
CE > VCC – 0.3V,
VIN > VCC – 0.3V or
VIN < 0.3V
No input may exceed
VCC+0.3V
0.1
5
µA
tCDR
[3]
Chip Deselect to Data
Retention Time
0
ns
tR
Operation Recovery Time
100
ms
Data Retention Waveform[5]
VCC Typ
VCC
OUTPUT
R2
30 pF
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
<5 ns
<5 ns
OUTPUT
V
Equivalent to:
THÉVENIN EQUIVALENT
ALL INPUT PULSES
RTH
R1
VCC(min.)
VCC(min.)
tCDR
VDR > 1.0V
DATA RETENTION MODE
tR
CE
VCC
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