Thermal resistance, Ac test loads and waveforms, Data retention characteristics – Cypress CY62138FV30 User Manual
Page 4: Data retention waveform
Document #: 001-08029 Rev. *E
Page 4 of 13
CY62138FV30 MoBL
®
Thermal Resistance
Parameter
Description
Test Conditions
SOIC
VFBGA
TSOP II
STSOP
TSOP I Unit
Θ
JA
Thermal Resistance
(Junction to Ambient)
Still air, soldered on a 3 x 4.5
inch, two layer printed circuit
board
44.53
38.49
44.16
59.72
50.19
°C/W
Θ
JC
Thermal Resistance
(Junction to Case)
24.05
17.66
11.97
15.38
14.59
°C/W
AC Test Loads and Waveforms
Parameters
2.5V (2.2V to 2.7V)
3.0V (2.7V to 3.6V)
Unit
R1
16667
1103
Ω
R2
15385
1554
Ω
R
TH
8000
645
Ω
V
TH
1.20
1.75
V
Data Retention Characteristics
(Over the Operating Range)
Parameter
Description
Conditions
Min
Typ
Max
Unit
V
DR
V
CC
for Data Retention
1.5
V
I
CCDR
[7]
Data Retention Current
V
CC
= 1.5V,
CE
1
> V
CC
− 0.2V or CE
2
< 0.2V,
V
IN
> V
CC
− 0.2V or V
IN
< 0.2V
1
4
µA
t
CDR
Chip Deselect to Data Retention Time
0
ns
t
R
Operation Recovery Time
t
RC
ns
Data Retention Waveform
V
CC
V
CC
OUTPUT
R2
30 pF
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
Rise Time = 1 V/ns
Fall Time = 1 V/ns
OUTPUT
V
Equivalent to:
THEVENIN
EQUIVALENT
ALL INPUT PULSES
R
TH
R1
V
CC(min)
V
CC(min)
t
CDR
V
DR
> 1.5V
DATA RETENTION MODE
t
R
V
CC
CE
Notes:
9. Full device AC operation requires linear V
CC
ramp from V
DR
to V
CC(min)
> 100
µs or stable at V
CC(min)
> 100
µs.
10. CE is the logical combination of CE
1
and CE
2
. When CE
1
is LOW and CE
2
is HIGH, CE is LOW; when CE
1
is HIGH or CE
2
is LOW, CE is HIGH.