STK11C48-N45I Cypress Semiconductor Corp, STK11C48-N45I Datasheet

STK11C48-N45I

Manufacturer Part Number
STK11C48-N45I
Description
Manufacturer
Cypress Semiconductor Corp
Type
NVSRAMr
Datasheet

Specifications of STK11C48-N45I

Word Size
8b
Organization
2Kx8
Density
16Kb
Interface Type
Parallel
Access Time (max)
45ns
Operating Supply Voltage (typ)
5V
Package Type
SOIC
Operating Temperature Classification
Industrial
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
Operating Temp Range
-40C to 85C
Pin Count
28
Mounting
Surface Mount
Supply Current
65mA
Lead Free Status / RoHS Status
Not Compliant
Introduction
This document provides guidance on converting a design that is currently using the STK11C48 to the Simtek
recommended part STK12C68.
Feature set and limitations of the STK11C48
Function Category
Autostore
Software store
Software recall
Package Comparison
The 600 mil dip package is available in the STK12C68 and the STK11C68.
Other packages that take less PCB area also exist such as 300 mil CDIP/PDIP and the 350 mil SOIC.
Package
350 mil SOIC – 28 pin
600 mil pdip -- 28 pin
300 mil pdip -- 28 pin
300 mil cdip -- 28 pin
Issues to consider during the conversion
The key difference is that the STK11C48 has been internally configured to disable the autostore function and
does not use a 68uf capacitor. The STK12C68 will be wired in VCAP power mode to select non-autostore
configuration. Also, the new HSB signal is unused. All other pins have the same function. Only software store is
used to store the part. Recall is automatic on power up and also may be activated by software sequence.
Converting STK11C48 to STK12C68
Not allowed
Yes
Yes
PKG Code
S
W
P
C
Application Note Number MA0017 0.0
STK11C48
STK11C48
Available
Not available
Available
Available
Wired to disallow autostore
Yes
Yes
STK12C68
Available
Available
Available
Available
STK12C68
Notes
Surface mount –
smallest PCB area
Through hole
Through hole
Through hole

Related parts for STK11C48-N45I

STK11C48-N45I Summary of contents

Page 1

... Converting STK11C48 to STK12C68 Introduction This document provides guidance on converting a design that is currently using the STK11C48 to the Simtek recommended part STK12C68. Feature set and limitations of the STK11C48 Function Category Autostore Not allowed Software store Yes Software recall Yes Package Comparison The 600 mil dip package is available in the STK12C68 and the STK11C68. ...

Page 2

... Schematic changes for conversion: The key difference is that the STK11C48 is equivalent (but smaller STK12C68 wired in VCAP power mode to select no autostore this, the power must be supplied to the VCAP pin and NOT applied to the VCCx pin (which can be either open or at ground). Also, the bypass capacitor moves to the VCAP pin. The choice of package is open with the “ ...

Page 3

... Corresponding pin Connections Pin for pin comparison of the two parts is given in the table below: STK11C48 STK12C68 Pin NAME NAME NC VCAP 1 A12 A12 A0 DQ0 DQ0 11 DQ1 DQ1 12 DQ2 DQ2 13 VSS VSS 14 DQ3 DQ3 15 DQ4 DQ4 16 DQ5 DQ5 17 DQ6 DQ6 18 DQ7 DQ7 19 E# ...

Related keywords