STK14C88N45 Cypress Semiconductor Corp, STK14C88N45 Datasheet

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STK14C88N45

Manufacturer Part Number
STK14C88N45
Description
Manufacturer
Cypress Semiconductor Corp
Type
NVSRAMr
Datasheet

Specifications of STK14C88N45

Word Size
8b
Organization
32Kx8
Density
256Kb
Interface Type
Parallel
Access Time (max)
45ns
Operating Supply Voltage (typ)
5V
Package Type
SOIC
Operating Temperature Classification
Commercial
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
Operating Temp Range
0C to 70C
Pin Count
32
Mounting
Surface Mount
Supply Current
70mA
Lead Free Status / RoHS Status
Not Compliant
Features
Cypress Semiconductor Corporation
Document Number: 001-52038 Rev. *B
25, 35, 45 ns Read Access and R/W Cycle Time
Unlimited Read/Write Endurance
Automatic Nonvolatile STORE on Power Loss
Nonvolatile STORE Under Hardware or Software Control
Automatic RECALL to SRAM on Power Up
Unlimited RECALL Cycles
1 Million STORE Cycles
100-Year Nonvolatile Data Retention
Single 5V+10% Power Supply
Commercial, Industrial, Military Temperatures
32-Pin 300 mil SOIC (RoHS-Compliant)
32-Pin CDIP and LCC Packages
Logic Block Diagram
DQ
DQ
DQ
DQ
DQ
DQ
DQ
DQ
A
A
A
A
A
A
A
A
A
5
6
7
8
9
11
12
13
14
0
1
2
3
4
5
6
7
A
COLUMN DEC
198 Champion Court
STATIC RAM
COLUMN I/O
0
512 x 512
A
ARRAY
1
A
2
A
3
A
Quantum Trap
4
512 x 512
A
10
RECALL
STORE
Description
The Cypress STK14C88 is a 256 Kb fast static RAM with a
nonvolatile Quantum Trap storage element included with each
memory cell.
The SRAM provides the fast access and cycle times, ease of
use, and unlimited read and write endurance of a normal SRAM.
Data automatically transfers to the nonvolatile storage cells
when power loss is detected (the STORE operation). On power
up, data is automatically restored to the SRAM (the RECALL
operation). Both STORE and RECALL operations are also
available under software control.
The Cypress nvSRAM is the first monolithic nonvolatile memory
to offer unlimited writes and reads. It is the highest performance,
most reliable nonvolatile memory available.
32Kx8 AutoStore nvSRAM
V
San Jose
CCX
CONTROL
CONTROL
POWER
RECALL
STORE/
V
CAP
,
SOFTWARE
CA 95134-1709
DETECT
Revised December 01, 2009
A
0
HSB
G
E
W
- A
13
STK14C88
408-943-2600
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Related parts for STK14C88N45

STK14C88N45 Summary of contents

Page 1

... Cypress Semiconductor Corporation Document Number: 001-52038 Rev. *B 32Kx8 AutoStore nvSRAM Description The Cypress STK14C88 is a 256 Kb fast static RAM with a nonvolatile Quantum Trap storage element included with each memory cell. The SRAM provides the fast access and cycle times, ease of use, and unlimited read and write endurance of a normal SRAM. ...

Page 2

Contents Features................................................................................ 1 Description........................................................................... 1 Logic Block Diagram........................................................... 1 Contents ............................................................................... 2 Pin Configurations .............................................................. 3 Pin Descriptions .................................................................. 3 Absolute Maximum Ratings ............................................... 4 DC Characteristics .............................................................. 4 AC Test Conditions ............................................................. 5 Capacitance ......................................................................... 5 SRAM Read Cycles ...

Page 3

Pin Configurations Figure 1. Pin Diagram - 32-Pin 300 Mil SOIC/CDIP V CAP ...

Page 4

Absolute Maximum Ratings Voltage on Input Relative to Ground.................–0.5V to 7.0V Voltage on Input Relative to V ...........–0. Voltage HSB ......................–0. 0-7 Temperature under Bias ............................... –55°C to 125°C Storage Temperature .................................... ...

Page 5

AC Test Conditions Input Pulse Levels .................................................... Input Rise and Fall Times ............................................ <5 ns Input and Output Timing Reference Levels .................... 1.5V Output Load....................................................... See Capacitance [5] Parameter Description C Input Capacitance IN C Output Capacitance ...

Page 6

SRAM Read Cycles #1 and #2 [4] (VCC = 5.0V ± 10%) Symbols NO. #1, #2 Alt Chip Enable Access Time ELQV ACS [6] [ Read Cycle Time AVAV , ELEH RC 7 ...

Page 7

SRAM Write Cycle #1 and #2 [4] (VCC = 5.0V ± 10%) Symbols NO Alt Write Cycle Time AVAV AVAV Write Pulse Width WLWH WLEH ...

Page 8

Hardware Mode Selection E W HSB Hardware STORE Cycle Symbols No. Standard Alternate STORE Cycle Duration ...

Page 9

AutoStore/Power up RECALL Symbols NO. Standard Alt Power up RECALL Duration RESTORE STORE Cycle Duration STORE HLHZ 29 t Low Voltage Trigger (V VSBL Low Time Allowed to Complete SRAM DELAY BLQZ ...

Page 10

Operation The STK14C88 has two separate modes of operation: SRAM mode and nonvolatile mode. In SRAM mode, the memory operates as a standard fast static RAM. In nonvolatile mode, data is transferred from SRAM to nonvolatile elements (the STORE ...

Page 11

Figure 11 shows the proper connection of capacitors for automatic store operation. A charge storage capacitor having a capacity of between 68 µF and 220 µF (±20%) rated at 6V should be provided. In system power mode, both V and ...

Page 12

Best Practices nvSRAM products have been used effectively for over 15 years. While ease-of-use is one of the product’s main system values, experience gained working with hundreds of applications has resulted in the following suggestions as best practices: ■ The ...

Page 13

Commercial and Industrial Ordering Information STK14C88 - Military Ordering Information STK14C88 - Document Number: 001-52038 Rev. *B Temperature Range: Blank = Commercial (0 to 70° Industrial (-40 to 85°C) ...

Page 14

Software STORE/RECALL Mode Selection (hex 0E38 31C7 03E0 3C1F 303F 0FC0 L H 0E38 31C7 03E0 3C1F 303F 0C63 Software-Controlled STORE/RECALL Cycle Symbols NO. Standard Alt STORE/RECALL Initiation ...

Page 15

Ordering Information These parts are not recommended for new designs. Part Number STK14C88-NF25 5V 32Kx8 AutoStore nvSRAM SOIC32-300 STK14C88-NF35 5V 32Kx8 AutoStore nvSRAM SOIC32-300 STK14C88-NF45 5V 32Kx8 AutoStore nvSRAM SOIC32-300 STK14C88-NF25TR 5V 32Kx8 AutoStore nvSRAM SOIC32-300 STK14C88-NF35TR 5V 32Kx8 AutoStore ...

Page 16

Package Diagrams Figure 15. 32-Pin 300 mil SOIC Gull Wing (51-85127 0.810[20.574] 0.822[20.878] 0.050[1.270] TYP. 0.014[0.355] 0.020[0.508] Document Number: 001-52038 Rev. *B PIN DIMENSIONS IN INCHES[MM] 0.292[7.416] 0.299[7.594] REFERENCE JEDEC MO-119 0.405[10.287] 0.419[10.642] 32 SEATING ...

Page 17

Package Diagrams (continued) Figure 16. 32-Pin 300 mil Side Braze DIL (001-51694) Document Number: 001-52038 Rev. *B STK14C88 001-51694 ** Page [+] Feedback [+] Feedback [+] Feedback ...

Page 18

Package Diagrams (continued) Figure 17. 32-Pin 450 mil Ceramic LCC (51-80068) .045 .055 .045 .055 Document Number: 001-52038 Rev. *B PIN 1 DIMENSIONS IN INCHES .022 .028 .045 .055 .009 R. .064 32 PLACES .090 .540 .560 .442 .458 STK14C88 ...

Page 19

... Cypress against all charges. Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign), United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement ...

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