Cypress Semiconductor Electronic Components Datasheet

CY14B108L Datasheet

8-Mbit (1024 K x 8/512 K x 16) nvSRAM

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CY14B108L

CY14B108N

8-Mbit (1024 K × 8/512 K × 16) nvSRAM

Features

■ 20 ns, 25 ns, and 45 ns access times

■ Internally organized as 1024 K × 8 (CY14B108L) or 512 K ×16

(CY14B108N)

■ Hands off automatic STORE on power-down with only a small

capacitor

■ STORE to QuantumTrap nonvolatile elements initiated by

software, device pin, or AutoStore on power-down

■ RECALL to SRAM initiated by software or power-up

■ Infinite Read, Write, and RECALL cycles

■ 1 million STORE cycles to QuantumTrap

■ 20 year data retention

■ Single 3 V +20, –10 operation

■ Industrial temperature

■ Packages

❐ 44-/54-pin thin small outline package (TSOP) Type II

❐ 48-ball fine-pitch ball grid array (FBGA)

■ Pb-free and restriction of hazardous substances (RoHS)

compliant

Functional Description

The Cypress CY14B108L/CY14B108N is a fast static RAM

(SRAM), with a nonvolatile element in each memory cell. The

memory is organized as 1024 Kbytes of 8 bits each or 512 K

words of 16 bits each. The embedded nonvolatile elements

incorporate QuantumTrap technology, producing the world’s

most reliable nonvolatile memory. The SRAM provides infinite

read and write cycles, while independent nonvolatile data

resides in the highly reliable QuantumTrap cell. Data transfers

from the SRAM to the nonvolatile elements (the STORE

operation) takes place automatically at power-down. On

power-up, data is restored to the SRAM (the RECALL operation)

from the nonvolatile memory. Both the STORE and RECALL

operations are also available under software control.

For a complete list of related documentation, click here.

Logic Block Diagram [1, 2, 3]

A17

A18

A19

DQ0

DQ1

DQ2

DQ3

DQ4

DQ5

DQ6

DQ7

DQ8

DQ9

DQ10

DQ11

DQ12

DQ13

DQ14

DQ15

Quatrum Trap

2048 X 2048 X 2

STORE

RECALL

STATIC RAM

ARRAY

2048 X 2048 X 2

COLUMN I/O

COLUMN DEC

A9 A10 A11 A12 A13 A14 A15 A16

VCC

VCAP

POWER

CONTROL

STORE/RECALL

CONTROL

SOFTWARE

DETECT

HSB

A14 - A2

BLE

BHE

Errata: AutoStore Disable feature does not work in the device. For more information, see Errata on page 24. Details include errata trigger conditions, scope of impact,

available workarounds, and silicon revision applicability.

Notes

1. Address A0–A19 for × 8 configuration and Address A0–A18 for × 16 configuration.

2. Data DQ0–DQ7 for × 8 configuration and Data DQ0–DQ15 for × 16 configuration.

3. BHE and BLE are applicable for × 16 configuration only.

Cypress Semiconductor Corporation • 198 Champion Court

Document Number: 001-45523 Rev. *P

• San Jose, CA 95134-1709 • 408-943-2600

Revised April 21, 2017

Cypress Semiconductor Electronic Components Datasheet

CY14B108L Datasheet

8-Mbit (1024 K x 8/512 K x 16) nvSRAM

No Preview Available !

CY14B108L

CY14B108N

Contents

Pinouts .............................................................................. 3

Pin Definitions .................................................................. 4

Device Operation .............................................................. 5

SRAM Read ................................................................ 5

SRAM Write ................................................................. 5

AutoStore Operation .................................................... 5

Hardware STORE Operation ....................................... 5

Hardware RECALL (Power-Up) .................................. 6

Software STORE ......................................................... 6

Software RECALL ....................................................... 6

Preventing AutoStore .................................................. 8

Data Protection ............................................................ 8

Maximum Ratings ............................................................. 9

Operating Range ............................................................... 9

DC Electrical Characteristics .......................................... 9

Data Retention and Endurance ..................................... 10

Capacitance .................................................................... 10

Thermal Resistance ........................................................ 10

AC Test Loads ................................................................ 11

AC Test Conditions ........................................................ 11

AC Switching Characteristics ....................................... 12

Switching Waveforms .................................................... 12

AutoStore/Power-Up RECALL ....................................... 15

Switching Waveforms .................................................... 15

Software Controlled STORE/RECALL Cycle ................ 16

Switching Waveforms .................................................... 16

Hardware STORE Cycle ................................................. 17

Switching Waveforms .................................................... 17

Truth Table For SRAM Operations ................................ 18

Ordering Information ...................................................... 19

Ordering Code Definitions ......................................... 19

Package Diagrams .......................................................... 20

Acronyms ........................................................................ 23

Document Conventions ................................................. 23

Units of Measure ....................................................... 23

Errata ............................................................................... 24

Part Numbers Affected .............................................. 24

8Mb (1024 K × 8, 512 K × 16) nvSRAM

Qualification Status ........................................................... 24

8Mb (1024 K × 8, 512 K × 16) nvSRAM

Errata Summary ............................................................... 24

Document History Page ................................................. 25

Sales, Solutions, and Legal Information ...................... 27

Worldwide Sales and Design Support ....................... 27

Products .................................................................... 27

PSoC® Solutions ...................................................... 27

Cypress Developer Community ................................. 27

Technical Support ..................................................... 27

Document Number: 001-45523 Rev. *P

Page 2 of 27

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CY14B108L Datasheet

8-Mbit (1024 K x 8/512 K x 16) nvSRAM

CY14B108L Datasheet

8-Mbit (1024 K x 8/512 K x 16) nvSRAM

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