Cypress CY7C1218H manual Switching Waveforms, Read Cycle Timing17

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CY7C1218H

Switching Waveforms

Read Cycle Timing[17]

tCYC

CLK

tCH

tADS tADH

ADSP

tCL

tADS tADH

ADSC

tAS tAH

ADDRESS

GW, BWE,

BW[A:D]

CE

A1

tCES tCEH

A2

A3

tWES tWEH

Burst continued with

new base address

 

 

Deselect

 

cycle

tADVS

tADVH

ADV

 

 

 

 

 

 

ADV

 

 

 

 

 

 

 

 

 

 

suspends

 

 

 

 

OE

 

 

 

 

 

burst.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

tOEV

tCO

 

 

 

 

 

 

 

 

tOEHZ

tOELZ

tDOH

 

 

 

 

 

tCHZ

 

 

tCLZ

 

 

 

 

 

 

 

 

Data Out (Q)

High-Z

Q(A1)

 

Q(A2)

Q(A2 + 1)

Q(A2 + 2)

Q(A2 + 3)

Q(A2)

Q(A2 + 1)

 

 

tCO

 

 

 

 

 

 

Burst wraps around

 

 

 

 

 

 

 

 

 

 

 

Single READ

 

 

 

 

BURST READ

 

to its initial state

 

 

 

 

 

 

 

 

 

 

 

 

 

DON’T CARE

UNDEFINED

 

 

 

Note:

17. On this diagram, when CE is LOW, CE1 is LOW, CE2 is HIGH and CE3 is LOW. When CE is HIGH, CE1 is HIGH or CE2 is LOW or CE3 is HIGH.

Document #: 38-05667 Rev. *B

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Contents Functional Description1 FeaturesLogic Block Diagram Cypress Semiconductor CorporationCY7C1218H Pin Configuration Pin TqfpSelection Guide 166 MHz 133 MHz UnitPin Definitions Functional Overview Sleep ModeBurst Sequences Next Cycle Add. Used Interleaved Burst Address Table Mode = Floating or VDDFirst Second Third Fourth Address A1, A0 WriteTruth Table for Read/Write 2 FunctionAmbient Range Maximum RatingsOperating Range Description Test Conditions Min Max UnitThermal Resistance Capacitance10AC Test Loads and Waveforms Switching Characteristics Over the Operating Range 11 Switching Waveforms Read Cycle Timing17Write Cycle Timing17 ADVRead/Write Cycle Timing17, 19 CLZZZ Mode Timing21 DON’T CareOrdering Information Package Diagram Pin Tqfp 14 x 20 x 1.4 mmIssue Date Orig. Description of Change Document History

CY7C1218H specifications

The Cypress CY7C1218H is a high-performance synchronous static random-access memory (SRAM) device designed to meet the demanding requirements of advanced memory applications. This SRAM boasts a density of 2 Mbits, making it suitable for a variety of uses, including telecommunications, industrial, and consumer electronics.

One of the main features of the CY7C1218H is its fast access time, which ranges from 10 ns to 15 ns, depending on the specific configuration. This high-speed access allows for efficient read/write operations and ensures that the memory can keep pace with the needs of high-speed processors and data buses. The device operates with a single 3.3V supply, enhancing its compatibility with modern digital circuits and reducing power consumption.

The CY7C1218H employs a synchronous interface that simplifies the control signaling process and increases data transfer rates. This synchronous nature means that the operation of the chip is synchronized with an external clock, facilitating faster and more reliable data transfer between the memory and the host system. This is particularly beneficial in high-performance applications where latency and throughput are critical.

In addition to its speed and efficiency, the CY7C1218H features a low standby power mode. This is an essential characteristic for battery-powered and energy-efficient systems, as it significantly reduces power consumption when the device is not actively in use. The SRAM design also includes a write protect feature, enhancing data integrity and security in sensitive applications.

The device is packaged in a 44-pin TSOP (Thin Small Outline Package) and has a compact footprint, making it suitable for space-constrained designs. The CY7C1218H uses advanced CMOS technology to support reliable performance and long data retention, ensuring that stored data remains intact even during power-down cycles.

Overall, the Cypress CY7C1218H represents a robust solution for engineers looking to integrate high-speed, low-power SRAM into their designs. Its blend of speed, reliability, and efficiency makes it an excellent choice for applications requiring fast access and secure data storage, making it a staple in various electronic systems across different industries.