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Cypress Semiconductor Electronic Components Datasheet

CY14B101Q2 Datasheet

1-Mbit (128K x 8) Serial SPI nvSRAM

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CY14B101Q1
CY14B101Q2
CY14B101Q3
1-Mbit (128K × 8) Serial SPI nvSRAM
1-Mbit (128K × 8) Serial SPI nvSRAM
Features
1-Mbit nonvolatile static random access memory (nvSRAM)
Internally organized as 128K × 8
STORE to QuantumTrap nonvolatile elements initiated
automatically on power-down (AutoStore) or by user using
HSB pin (Hardware STORE) or SPI instruction (Software
STORE)
RECALL to SRAM initiated on power-up (Power-Up
RECALL) or by SPI instruction (Software RECALL)
Automatic STORE on power-down with a small capacitor
(except for CY14B101Q1)
High reliability
Infinite read, write, and RECALL cycles
1 million STORE cycles to QuantumTrap
Data retention: 20 years
High speed serial peripheral interface (SPI)
40 MHz clock rate
Supports SPI mode 0 (0, 0) and mode 3 (1, 1)
Write protection
Hardware protection using Write Protect (WP) pin
Software protection using Write Disable instruction
Software block protection for 1/4,1/2, or entire array
Low power consumption
Single 3 V +20%, –10% operation
Average active current of 10 mA at 40 MHz operation
Industry standard configurations
Industrial temperature
Logic Block Diagram
CY14B101Q1 has identical pin configuration to industry
standard 8-pin NV memory
8-pin dual flat no-lead (DFN) package and 16-pin small
outline integrated circuit (SOIC) package
Restriction of hazardous substances (RoHS) compliant
Functional Description
The Cypress CY14B101Q1/CY14B101Q2/CY14B101Q3
combines a 1-Mbit nvSRAM with a nonvolatile element in each
memory cell with serial SPI interface. The memory is organized
as 128 K words of 8 bits each. The embedded nonvolatile
elements incorporate the QuantumTrap technology, creating the
world’s most reliable nonvolatile memory. The SRAM provides
infinite read and write cycles, while the QuantumTrap cell
provides highly reliable nonvolatile storage of data. Data
transfers from SRAM to the nonvolatile elements (STORE
operation) takes place automatically at power-down (except for
CY14B101Q1). On power-up, data is restored to the SRAM from
the nonvolatile memory (RECALL operation). Both STORE and
RECALL operations can also be initiated by the user through SPI
instruction.
For a complete list of related documentation, click here.
Configuration
Feature
AutoStore
Software
STORE
Hardware
STORE
CY14B101Q1
No
Yes
CY14B101Q2
Yes
Yes
CY14B101Q3
Yes
Yes
No No Yes
VCC
VCAP
CS
WP
SCK
HOLD
Instruction decode
Write protect
Control logic
QuantumTrap
128 K X 8
SRAM Array
128 K X 8
STORE
RECALL
Power Control
STORE/RECALL
Control
HSB
Instruction
register
Address
Decoder
A0-A16
D0-D7
SI Data I/O register
SO
Status Register
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 001-50091 Rev. *P
• San Jose, CA 95134-1709 • 408-943-2600
Revised January 12, 2018


Cypress Semiconductor Electronic Components Datasheet

CY14B101Q2 Datasheet

1-Mbit (128K x 8) Serial SPI nvSRAM

No Preview Available !

CY14B101Q1
CY14B101Q2
CY14B101Q3
Contents
Pinouts .............................................................................. 3
Pin Definitions .................................................................. 4
Device Operation .............................................................. 5
SRAM Write ................................................................. 5
SRAM Read ................................................................ 5
STORE Operation ....................................................... 5
AutoStore Operation .................................................... 6
Software STORE Operation ........................................ 6
Hardware STORE and HSB Pin Operation ................. 6
RECALL Operation ...................................................... 6
Hardware RECALL (Power-Up) .................................. 6
Software RECALL ....................................................... 6
Disabling and Enabling AutoStore ............................... 7
Serial Peripheral Interface ............................................... 7
SPI Overview ............................................................... 7
SPI Modes ................................................................... 8
SPI Operating Features .................................................... 9
Power-Up .................................................................... 9
Power-On Reset .......................................................... 9
Power-Down ................................................................ 9
Active Power and Standby Power Modes ................... 9
SPI Functional Description .............................................. 9
Status Register ............................................................... 10
Read Status Register (RDSR) Instruction ................. 10
Write Status Register (WRSR) Instruction ................ 10
Write Protection and Block Protection ......................... 11
Write Enable (WREN) Instruction .............................. 11
Write Disable (WRDI) Instruction .............................. 11
Block Protection ........................................................ 11
Write Protect (WP) Pin .............................................. 12
Memory Access .............................................................. 12
Read Sequence (READ) instruction .......................... 12
Write Sequence (WRITE) instruction ........................ 12
Software STORE (STORE) instruction ...................... 14
Software RECALL (RECALL) instruction .................. 14
AutoStore Enable (ASENB) instruction ..................... 14
AutoStore Disable (ASDISB) instruction ................... 14
HOLD Pin Operation ................................................. 14
Maximum Ratings ........................................................... 15
Operating Range ............................................................. 15
DC Electrical Characteristics ........................................ 15
Data Retention and Endurance ..................................... 16
Capacitance .................................................................... 16
Thermal Resistance ........................................................ 16
AC Test Loads and Waveforms ..................................... 16
AC Test Conditions ........................................................ 16
AC Switching Characteristics ....................................... 17
Switching Waveforms .................................................... 18
AutoStore or Power-Up RECALL .................................. 19
Switching Waveforms .................................................... 19
Software Controlled STORE and RECALL Cycles ...... 20
Switching Waveforms .................................................... 20
Hardware STORE Cycle ................................................. 21
Switching Waveforms .................................................... 21
Ordering Information ...................................................... 22
Ordering Code Definitions ......................................... 22
Package Diagrams .......................................................... 23
Acronyms ........................................................................ 25
Document Conventions ................................................. 25
Units of Measure ....................................................... 25
Document History Page ................................................. 26
Sales, Solutions, and Legal Information ...................... 29
Worldwide Sales and Design Support ....................... 29
Products .................................................................... 29
PSoC® Solutions ...................................................... 29
Cypress Developer Community ................................. 29
Technical Support ..................................................... 29
Document Number: 001-50091 Rev. *P
Page 2 of 29


Part Number CY14B101Q2
Description 1-Mbit (128K x 8) Serial SPI nvSRAM
Maker Cypress Semiconductor
Total Page 29 Pages
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