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Cypress Semiconductor Electronic Components Datasheet



CY15B128Q

128-Kbit (16K x 8) Automotive Serial (SPI) F-RAM


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CY15B128Q pdf
CY15B128Q
128-Kbit (16K × 8) Automotive Serial (SPI)
F-RAM
128-Kbit (16K × 8) Automotive Serial (SPI) F-RAM
Features
128-Kbit ferroelectric random access memory (F-RAM)
logically organized as 16K × 8
High-endurance 100 trillion (1014) read/writes
151-year data retention (See the Data Retention and
Endurance table)
NoDelay™ writes
Advanced high-reliability ferroelectric process
Very fast serial peripheral interface (SPI)
Up to 40-MHz frequency
Direct hardware replacement for serial flash and EEPROM
Supports SPI mode 0 (0, 0) and mode 3 (1, 1)
Sophisticated write-protection scheme
Hardware protection using the Write Protect (WP) pin
Software protection using Write Disable instruction
Software block protection for 1/4, 1/2, or entire array
Device ID
Manufacturer ID and Product ID
Low power consumption
2.5-mA active current at 40 MHz
150-A standby current
8-A sleep mode current
Low-voltage operation: VDD = 2.0 V to 3.6 V
Automotive-A temperature: –40 C to +85 C
8-pin small outline integrated circuit (SOIC) package
Restriction of hazardous substances (RoHS) compliant
Logic Block Diagram
Functional Description
The CY15B128Q is a 128-Kbit nonvolatile memory employing an
advanced ferroelectric process. An F-RAM is nonvolatile and
performs reads and writes similar to a RAM. It provides reliable
data retention for 151 years while eliminating the complexities,
overhead, and system-level reliability problems caused by serial
flash, EEPROM, and other nonvolatile memories.
Unlike serial flash and EEPROM, the CY15B128Q performs
write operations at bus speed. No write delays are incurred. Data
is written to the memory array immediately after each byte is
successfully transferred to the device. The next bus cycle can
commence without the need for data polling. In addition, the
product offers substantial write endurance compared with other
nonvolatile memories. The CY15B128Q is capable of supporting
1014 read/write cycles, or 100 million times more write cycles
than EEPROM.
These capabilities make the CY15B128Q ideal for nonvolatile
memory applications requiring frequent or rapid writes.
Examples range from data logging, where the number of write
cycles may be critical, to demanding industrial controls where the
long write time of serial flash or EEPROM can cause data loss.
The CY15B128Q provides substantial benefits to users of serial
EEPROM or flash as a hardware drop-in replacement. The
CY15B128Q uses the high-speed SPI bus, which enhances the
high-speed write capability of F-RAM technology. The device
incorporates a read-only Device ID that allows the host to
determine the manufacturer, product density, and product
revision. The device specifications are guaranteed over an
automotive-A range of –40 C to +85 C.
For a complete list of related documentation, click here.
WP
CS
HOLD
SCK
Instruction Decoder
Clock Generator
Control Logic
Write Protect
16 K x 8
F-RAM Array
Instruction Register
Address Register
Counter
14
8
SI SO
Data I/O Register
3
Nonvolatile Status
Register
Cypress Semiconductor Corporation • 198 Champion Court
Document Number: 001-90888 Rev. *F
• San Jose, CA 95134-1709 • 408-943-2600
Revised September 28, 2016



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CY15B128Q pdf
CY15B128Q
Contents
Pinout ................................................................................ 3
Pin Definitions .................................................................. 3
Functional Overview ........................................................ 4
Memory Architecture ........................................................ 4
Serial Peripheral Interface - SPI Bus .............................. 4
SPI Overview ............................................................... 4
SPI Modes ................................................................... 5
Power-Up to First Access ............................................ 6
Command Structure .................................................... 6
WREN - Set Write Enable Latch ................................. 6
WRDI - Reset Write Enable Latch ............................... 6
Status Register and Write Protection ............................. 7
RDSR - Read Status Register ..................................... 7
WRSR - Write Status Register .................................... 7
Memory Operation ............................................................ 8
Write Operation ........................................................... 8
Read Operation ........................................................... 8
Fast Read Operation ................................................... 8
HOLD Pin Operation ................................................. 10
Sleep Mode ............................................................... 10
Device ID ................................................................... 11
Endurance ................................................................. 12
Maximum Ratings ........................................................... 13
Operating Range ............................................................. 13
DC Electrical Characteristics ........................................ 13
Data Retention and Endurance ..................................... 14
Capacitance .................................................................... 14
Thermal Resistance ........................................................ 14
AC Test Conditions ........................................................ 14
AC Switching Characteristics ....................................... 15
Power Cycle Timing ....................................................... 17
Ordering Information ...................................................... 18
Ordering Code Definitions ......................................... 18
Package Diagram ............................................................ 19
Acronyms ........................................................................ 20
Document Conventions ................................................. 20
Units of Measure ....................................................... 20
Document History Page ................................................. 21
Sales, Solutions, and Legal Information ...................... 22
Worldwide Sales and Design Support ....................... 22
Products .................................................................... 22
PSoC®Solutions ....................................................... 22
Cypress Developer Community ................................. 22
Technical Support ..................................................... 22
Document Number: 001-90888 Rev. *F
Page 2 of 22



Part Number CY15B128Q
Description 128-Kbit (16K x 8) Automotive Serial (SPI) F-RAM
Maker Cypress Semiconductor - Cypress Semiconductor
Total Page 22 Pages
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