Cypress CY14B101Q1, CY14B101Q2, CY14B101Q3

PRELIMINARY

CY14B101Q1

CY14B101Q2

CY14B101Q3

Document #: 001-50091 Rev. *A Page 18 of 22

Hardware STORE Cycle

Parameter Description

CY14B101Q1

Unit

Min Max

tDHSB HSB To Output Active Time when write latch not set 25 ns

tPHSB Hardware STORE Pulse Width 15 ns

Switching Waveforms Figure 26. Hardware STORE Cycle[8]

HSB (IN)

HSB (OUT)

RWI

HSB (IN)

HSB (OUT)

RWI

tHHHD

tSTORE

tPHSB

tDELAY

tLZHSB

tDELAY tDHSB tDHSB

tPHSB

HSB pin is driven high to VCC only by Internal

100K: resistor, HSB driver is disabled

SRAM is disabled as long as HSB (IN) is driven LOW.

Write Latch not set

Write Latch set

[+] Feedback

Contents

Main 1 Mbit (128K x 8) Serial SPI nvSRAM CY14B101Q1 CY14B101Q2 CY14B101Q3 Features Functional Overview Logic Block Diagram CY14B101Q2 Pinouts CY14B101Q3 Device Operation SRAM Write SRAM Read STORE Operation CY14B101Q1 CY14B101Q2 CY14B101Q3 Software Store Operation Hardware STORE and HSB pin Operation RECALL Operation Hardware Recall (Power Up) Serial Peripheral Interface SPI Overview SPI Modes SPI Operating Features Power Up Power On Reset Power Down Active Power and Standby Power Modes Status Register Read Status Register (RDSR) Instruction Write Status Register (WRSR) Instruction Write Protection and Block Protection Write Enable (WREN) Instruction Write Disable (WRDI) Instruction Block Protection CY14B101Q1 CY14B101Q2 CY14B101Q3 Write Protect (WP) Pin Memory Access Read Sequence (READ) Write Sequence (WRITE) nvSRAM Special Instructions [+] Feedback HI-Z A16 A3 A1A2 A0 0000001 0000 Software RECALL AutoStore Disable (ASDISB) AutoStore Enable (ASENB) HOLD Pin Operation Maximum Ratings DC Electrical Characteristics CY14B101Q1 CY14B101Q2 CY14B101Q3 AC Test Conditions Data Retention and Endurance Capacitance Thermal Resistance ~ Document #: 001-50091 Rev. *A Page 16 of 22 AutoStore or Power Up RECALL Switching Waveforms Figure 23. AutoStore or Power Up RECALL Software Controlled STORE and RECALL Cycles Switching Waveforms Page Ordering Information Part Numbering Nomenclature Page Page Document History Page Sales, Solutions, and Legal Information Worldwide Sales and Design Support Products PSoC Solutions