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CY62256NLL-70SNC Datasheet(PDF) 4 Page - Cypress Semiconductor

Part # CY62256NLL-70SNC
Description  256K (32K x 8) Static RAM
Download  13 Pages
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY62256NLL-70SNC Datasheet(HTML) 4 Page - Cypress Semiconductor

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CY62256N
Document #: 001-06511 Rev. *A
Page 4 of 13
Thermal Resistance[5]
Parameter
Description
Test Conditions
DIP
SOIC
TSOP
RTSOP
Unit
Θ
JA
Thermal Resistance
(Junction to Ambient)
Still Air, soldered on a 4.25 x 1.125
inch, 4-layer printed circuit board
75.61
76.56
93.89
93.89
°C/W
Θ
JC
Thermal Resistance
(Junction to Case)
43.12
36.07
24.64
24.64
°C/W
AC Test Loads and Waveforms
Data Retention Characteristics
Parameter
Description
Conditions[6]
Min.
Typ.[2]
Max.
Unit
VDR
VCC for Data Retention
2.0
V
ICCDR
Data Retention Current
L
VCC = 2.0V, CE > VCC − 0.3V,
VIN > VCC − 0.3V, or VIN < 0.3V
250
µA
LL-Comm’l
0.1
5
µA
LL - Ind’l/Auto-A
0.1
10
µA
LL - Auto-E
0.1
10
µA
tCDR
[8]
Chip Deselect to Data Retention Time
0
ns
tR
[8]
Operation Recovery Time
tRC
ns
3.0V
5V
OUTPUT
R1 1800
R2
990
100 pF
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
<5 ns
<5 ns
5V
OUTPUT
R1 1800
R2
990
5pF
INCLUDING
JIG AND
SCOPE
(a)
(b)
OUTPUT
1.77V
Equivalent to:
THÉVENIN EQUIVALENT
ALL INPUT PULSES
639
Data Retention Waveform
Note:
6. No input may exceed VCC + 0.5V.
3.0V
3.0V
tCDR
VDR > 2V
DATA RETENTION MODE
tR
CE
VCC
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