Cypress CY7C292A, CY7C293A, CY7C291A manual Selection Guide, Maximum Ratings, Operating Range

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CY7C291A

CY7C292A/CY7C293A

Selection Guide

 

 

 

 

7C291A-25

7C291A-35

7C291A-50

 

 

 

 

7C292A-25

7C292A-35

7C292A-50

 

 

 

 

7C293A-25

7C293A-35

7C293A-50

 

 

 

7C291A-20

7C291AL-25

7C291AL-35

7C291AL-50

 

 

 

7C292A-20

7C292AL-25

7C292AL-35

7C292AL-50

 

 

 

7C293A-20

7C293AL-25

7C293AL-35

7C293AL-50

 

 

 

 

 

 

Maximum Access Time (ns)

 

20

25

35

50

 

 

 

 

 

 

 

Maximum Operating

Standard

Commercial

120

90

90

90

Current (mA)

 

 

 

 

 

 

 

Military

 

120

90

90

 

 

 

 

 

 

 

 

 

 

 

L

Commercial

 

60

60

60

 

 

 

 

 

 

 

Standby Current (mA)

 

Commercial

40

30

30

30

7C293A Only

 

 

 

 

 

 

 

Military

 

40

40

40

 

 

 

 

 

 

 

 

 

 

Maximum Ratings

(Above which the useful life may be impaired. For user guide- lines, not tested.)

Storage Temperature

65° C to+150° C

Ambient Temperature with

55° C to+125° C

Power Applied

Supply Voltage to Ground Potential

0.5V to+7.0V

DC Voltage Applied......................................................to Outputs

0.5V to+7.0V

in High Z State

DC Input Voltage

3.0V to +7.0V

DC Program Voltage

13.0V

UV Exposure

7258 Wsec/cm2

Static Discharge Voltage

>2001V

(per MIL-STD-883, Method 3015)

 

Latch-Up Current

>200 mA

Operating Range

 

Ambient

 

Range

Temperature

VCC

Commercial

0° C to + 70° C

5V ± 10%

 

 

 

Industrial[1]

40° C to + 85° C

5V ± 10%

Military[2]

55° C to + 125° C

5V ± 10%

Notes:

1.Contact a Cypress representative for industrial temperature range spec- ifications.

2.TA is the “instant on” case temperature.

2

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Contents Functional Description FeaturesLogic Block Diagram Operating Range Selection GuideMaximum Ratings CY7C291A Capacitance4 Parameter Description Test Conditions Max UnitSwitching Characteristics Over the Operating Range3 AC Test Loads and Waveforms4Erasure Characteristics Programming InformationTypical DC and AC Characteristics Programming PinoutsOrdering Code Package Package Type Operating Ordering Information9Speed Ordering Code Package Type OperatingCY7C291AL-50JC CY7C293A-30DMB SMD Cross Reference DC CharacteristicsSwitching Characteristics Lead 300-Mil CerDIP D14 Package DiagramsLead 600-Mil CerDIP D12 Square Leadless ChipCarrier L64 Lead 600-Mil Molded DIP P11 Lead 300-Mil Molded DIP P13/P13A Pin Windowed Leadless Chip Carrier Q64 Lead 300-Mil Molded Soic S13Lead Windowed Cerpack T73 Lead 300-Mil Windowed CerDIP W14

CY7C291A, CY7C292A, CY7C293A specifications

The Cypress CY7C293A, CY7C292A, and CY7C291A are high-performance static random-access memory (SRAM) devices designed for various applications requiring fast access and low power consumption. These memory chips are particularly suitable for use in telecommunications, networking, industrial, automotive, and consumer electronics.

One key feature of the CY7C293A model is its 2 megabit capacity, which offers a vast storage solution for applications needing quick read and write capabilities. The CY7C292A and CY7C291A, on the other hand, provide 1 megabit and 256 kilobits, respectively, catering to a range of memory needs. The devices utilize a 16-bit organization, optimally balancing capacity and access speed.

A standout technology is the use of a fast access time, with the CY7C293A achieving speeds of up to 12 nanoseconds. This rapid access capability significantly enhances the performance of systems that depend on swift data retrieval. The SRAM devices are built using Cypress’s unique CMOS technology, which not only supports a dense manufacturing process but also ensures low power consumption. The standby current is minimal, making these chips suitable for battery-powered applications where energy efficiency is critical.

The packaging options available for the CY7C293A, CY7C292A, and CY7C291A include various forms such as 28-pin DIP and 32-pin TSOP, allowing for ease of integration into different circuit layouts. The devices feature an asynchronous operation, providing straightforward interfacing with no need for external clocks, which simplifies system design.

In terms of reliability, these SRAMs are equipped with robust features that ensure data integrity and stability. They offer a wide operating voltage range, typically from 4.5V to 5.5V, accommodating different power supply configurations. Furthermore, the chips are designed to withstand multiple read/write cycles, making them ideal for applications that demand frequent data manipulation.

Overall, the Cypress CY7C293A, CY7C292A, and CY7C291A SRAM devices represent a versatile memory solution that combines speed, efficiency, and reliability, making them a favored choice for engineers and designers working across various technological domains. Their adaptability to different applications ensures that they remain relevant in the rapidly evolving landscape of electronics and memory technology.