background image

CY62157ESL MoBL

®

Document #: 001-43141 Rev. **

Page 5 of 12

Data Retention Characteristics 

Over the Operating Range

Parameter

Description

Conditions

Min

Typ

[2]

Max

Unit

V

DR

V

CC

 for Data Retention

1.5

V

I

CCDR

Data Retention Current

CE > V

CC

 – 0.2V, 

V

IN

 > V

CC

 – 0.2V or V

IN

 < 0.2V

V

CC

 = 1.5V

2

5

μ

A

V

CC

 = 2.0V

2

8

t

CDR 

[6]

Chip Deselect to Data 
Retention Time

0

ns

t

[7]

Operation Recovery Time

t

RC

ns

Data Retention Waveform

Notes

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

CC

 ramp from V

DR 

to V

CC(min)

 > 100 

μ

s or stable at V

CC(min)

 > 100 

μ

s.

8. 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.

V

CC(min)

V

CC(min)

t

CDR

V

DR

> 1.5V

DATA RETENTION MODE

t

R

V

CC

CE or

BHE.BLE

[8]

[+] Feedback 

[+] Feedback 

Summary of Contents for CY62157ESL

Page 1: ...gh IO15 are placed in a high impedance state when Deselected CE HIGH Outputs are disabled OE HIGH Both Byte High Enable and Byte Low Enable are disabled BHE BLE HIGH Write operation is active CE LOW a...

Page 2: ...6 7 8 9 11 14 31 32 36 35 34 33 37 40 39 38 12 13 41 44 43 42 16 15 29 30 A5 18 17 20 19 27 28 25 26 22 21 23 24 A6 A7 A3 A2 A1 A0 A17 A4 A9 A10 A11 A12 A15 A16 OE BHE BLE CE WE IO0 IO1 IO2 IO3 IO4 IO...

Page 3: ...2 4 4 5 VCC 5 5 IOH 1 0 mA 2 4 VOL Output LOW Voltage 2 2 VCC 2 7 IOL 0 1 mA 0 4 V 2 7 VCC 3 6 IOL 2 1mA 0 4 4 5 VCC 5 5 IOL 2 1mA 0 4 VIH Input HIGH Voltage 2 2 VCC 2 7 1 8 VCC 0 3 V 2 7 VCC 3 6 2 2...

Page 4: ...hat may affect these parameters Parameter Description Test Conditions TSOP II Unit JA Thermal Resistance Junction to Ambient Still Air soldered on a 3 4 5 inch two layer printed circuit board 77 C W J...

Page 5: ...o Data Retention Time 0 ns tR 7 Operation Recovery Time tRC ns Data Retention Waveform Notes 6 Tested initially and after any design or process changes that may affect these parameters 7 Full device o...

Page 6: ...Data Setup to Write End 25 ns tHD Data Hold from Write End 0 ns tHZWE WE LOW to High Z 10 11 18 ns tLZWE WE HIGH to Low Z 10 10 ns Notes 9 Test conditions for all parameters other than tri state param...

Page 7: ...DATA VALID RC tAA tOHA tRC ADDRESS DATA OUT 50 50 DATA VALID tRC tACE tLZBE tLZCE tPU HIGHIMPEDANCE ICC tHZOE tHZCE tPD tHZBE tLZOE tDBE tDOE IMPEDANCE HIGH ISB DATA OUT OE CE VCC SUPPLY CURRENT BHE...

Page 8: ...A tAW tWC tHZOE DATAIN NOTE 19 tBW tSCE DATA IO ADDRESS CE WE OE BHE BLE tHD tSD tPWE tHA tAW tSCE tWC tHZOE DATAIN tBW tSA CE ADDRESS WE DATA IO OE BHE BLE NOTE 19 Notes 17 Data IO is high impedance...

Page 9: ...W 18 Figure 7 Write Cycle 4 BHE BLE Controlled OE LOW 18 Switching Waveforms continued DATAIN tHD tSD tLZWE tPWE tSA tHA tAW tSCE tWC tHZWE tBW NOTE 19 CE ADDRESS WE DATA IO BHE BLE tHD tSD tSA tHA tA...

Page 10: ...O15 IO0 IO7 in High Z Read Active ICC L H H L L High Z Output Disabled Active ICC L H H H L High Z Output Disabled Active ICC L H H L H High Z Output Disabled Active ICC L L X L L Data In IO0 IO15 Wri...

Page 11: ...CY62157ESL MoBL Document 001 43141 Rev Page 11 of 12 Package Diagrams Figure 8 44 Pin TSOP II 51 85087 51 85087 A Feedback Feedback...

Page 12: ...nsee a personal non exclusive non transferable license to copy use modify create derivative works of and compile the Cypress Source Code and derivative works for the sole purpose of creating custom so...

Reviews: