beautypg.com

Thermal resistance, Ac test loads and waveforms, Data retention characteristics – Cypress CY62137FV30 User Manual

Page 4: Data retention waveform

background image

CY62137FV30 MoBL

®

Document Number: 001-07141 Rev. *F

Page 4 of 12

Thermal Resistance

Tested initially and after any design or process changes that may affect these parameters

.

Parameter

Description

Test Conditions

VFBGA

TSOP II

Unit

Θ

JA

Thermal Resistance
(Junction to Ambient)

Still air, soldered on a 3 × 4.5 inch,
two layer printed circuit board

75

77

°C/W

Θ

JC

Thermal Resistance
(Junction to Case)

10

13

°C/W

AC Test Loads and Waveforms

Figure 3. AC Test Loads and Waveform

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

[1]

Max

Unit

V

DR

V

CC

for Data Retention

1.5

V

I

CCDR

[7]

Data Retention Current

V

CC

= 1.5V, CE > V

CC

- 0.2V,

V

IN

> V

CC

- 0.2V or V

IN

< 0.2V

Ind’l/Auto-A

4

μA

Auto-E

12

t

CDR

[8]

Chip Deselect to Data Retention Time

0

ns

t

R

[9]

Operation Recovery Time

t

RC

ns

Data Retention Waveform

Figure 4. Data Retention Waveform

[10]

V

CC

V

CC

OUTPUT

R2

30 pF

GND

90%

10%

90%

10%

Rise Time = 1 V/ns

Fall Time = 1 V/ns

OUTPUT

Equivalent to: THÉVENIN EQUIVALENT

ALL INPUT PULSES

R

TH

R1

V

INCLUDING

JIG AND

SCOPE

V

CC(min)

V

CC(min)

t

CDR

V

DR

> 1.5V

DATA RETENTION MODE

t

R

V

CC

CE or

BHE.BLE

Notes

8. Tested initially and after any design or process changes that may affect these parameters.
9. Full device operation requires linear V

CC

ramp from V

DR

to V

CC(min)

> 100

μs or stable at V

CC(min)

> 100

μs.

10. BHE.BLE is the AND of both BHE and BLE. Deselect the chip by either disabling chip enable signals or by disabling both BHE and BLE.

[+] Feedback

[+] Feedback