CY14MB064Q
CY14ME064Q
Contents
Pinouts .............................................................................. 3
Pin Definitions .................................................................. 3
Device Operation .............................................................. 4
SRAM Write ................................................................. 4
SRAM Read ................................................................ 4
STORE Operation ....................................................... 4
AutoStore Operation .................................................... 4
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-Down ................................................................ 8
Active Power and Standby Power Modes ................... 8
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 ........................................................ 12
Hardware Write Protection (WP) ............................... 12
Memory Access .............................................................. 12
Read Sequence (READ) Instruction .......................... 12
Write Sequence (WRITE) Instruction ........................ 12
nvSRAM Special Instructions ........................................ 14
Software STORE (STORE) Instruction ..................... 14
Software RECALL (RECALL) Instruction .................. 14
AutoStore Enable (ASENB) Instruction ..................... 14
AutoStore Disable (ASDISB) Instruction ................... 15
Special Instructions ....................................................... 15
SLEEP Instruction ..................................................... 15
Serial Number ................................................................. 15
WRSN (Serial Number Write) Instruction .................. 15
RDSN (Serial Number Read) Instruction ................... 16
Device ID ......................................................................... 16
RDID (Device ID Read) Instruction ........................... 16
HOLD Pin Operation ................................................. 17
Maximum Ratings ........................................................... 18
Operating Range ............................................................. 18
DC Electrical Characteristics ........................................ 18
Data Retention and Endurance ..................................... 19
Capacitance .................................................................... 19
Thermal Resistance ........................................................ 19
AC Test Loads and Waveforms ..................................... 20
AC Test Conditions ........................................................ 20
AC Switching Characteristics ....................................... 21
Switching Waveforms .................................................... 22
AutoStore or Power-Up RECALL .................................. 23
Switching Waveforms .................................................... 24
Software Controlled STORE and RECALL Cycles ...... 25
Switching Waveforms .................................................... 25
Hardware STORE Cycle ................................................. 26
Switching Waveforms .................................................... 26
Ordering Information ...................................................... 27
Ordering Code Definitions ......................................... 27
Package Diagrams .......................................................... 28
Acronyms ........................................................................ 30
Document Conventions ................................................. 30
Units of Measure ....................................................... 30
Document History Page ................................................. 31
Sales, Solutions, and Legal Information ...................... 32
Worldwide Sales and Design Support ....................... 32
Products .................................................................... 32
PSoC® Solutions ...................................................... 32
Cypress Developer Community ................................. 32
Technical Support ..................................................... 32
Document Number: 001-65018 Rev. *H
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