CY14B101Q1
CY14B101Q2
CY14B101Q3
Document #: 001-50091 Rev. *D
Page 2 of 24
Contents
Features ...............................................................................1
Functional Overview ..........................................................1
Configuration ......................................................................1
Logic Block Diagram ..........................................................1
Contents ..............................................................................2
Pinouts ................................................................................3
Device Operation ................................................................4
SRAM Write ...................................................................4
SRAM Read ..................................................................4
STORE Operation .........................................................4
AutoStore Operation ......................................................5
Software Store Operation ..............................................5
Hardware STORE and HSB pin Operation ...................5
RECALL Operation ........................................................5
Hardware Recall (Power Up) .........................................5
Software RECALL .........................................................5
Disabling and Enabling AutoStore .................................6
Serial Peripheral Interface .................................................6
SPI Overview .................................................................6
SPI Modes .....................................................................7
SPI Operating Features ......................................................8
Power Up .......................................................................8
Power On Reset ............................................................8
Power Down ..................................................................8
Active Power and Standby Power Modes .....................8
SPI Functional Description ................................................8
Status Register ...................................................................9
Read Status Register (RDSR) Instruction .....................9
Write Status Register (WRSR) Instruction ....................9
Write Protection and Block Protection ...........................10
Write Enable (WREN) Instruction ................................10
Write Disable (WRDI) Instruction ................................ 10
Block Protection .......................................................... 10
Write Protect (WP) Pin ................................................ 11
Memory Access ................................................................11
Read Sequence (READ) ............................................. 11
Write Sequence (WRITE) ............................................ 11
Software STORE ......................................................... 12
Software RECALL ....................................................... 13
AutoStore Disable (ASDISB) ....................................... 13
AutoStore Enable (ASENB) ......................................... 13
HOLD Pin Operation ................................................... 13
Maximum Ratings ............................................................. 14
DC Electrical Characteristics .......................................... 14
Data Retention and Endurance ....................................... 15
Capacitance ...................................................................... 15
Thermal Resistance .......................................................... 15
AC Test Conditions .......................................................... 15
AC Switching Characteristics ......................................... 16
AutoStore or Power Up RECALL ....................................17
Software Controlled STORE and RECALL Cycles ........ 18
Hardware STORE Cycle ................................................... 19
Part Numbering Nomenclature ........................................ 20
Ordering Information ........................................................ 20
Package Diagrams ............................................................ 21
Document History Page ..................................................23
Sales, Solutions, and Legal Information ........................ 24
Worldwide Sales and Design Support ......................... 24
Products ...................................................................... 24
PSoC Solutions ..........................................................24
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