Cypress CY7C1474V25, CY7C1470V25 manual CY7C1472V25 4M x

Page 4

CY7C1470V25

CY7C1472V25

CY7C1474V25

Pin Configurations (continued)

165-ball FBGA (15 x 17 x 1.4 mm) Pinout CY7C1470V25 (2M x 36)

 

1

2

3

 

4

 

5

 

 

6

 

7

 

 

 

 

8

 

 

 

 

 

9

10

11

A

NC/576M

A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A

A

NC

 

CE

1

 

BW

c

 

BW

b

 

CE

3

 

CEN

 

 

ADV/LD

 

B

NC/1G

A

CE2

 

 

d

 

 

 

a

CLK

 

 

 

 

 

 

 

 

 

 

 

 

 

A

A

NC

 

BW

 

BW

 

WE

OE

C

DQPc

NC

VDDQ

 

VSS

 

 

VSS

 

VSS

 

VSS

VSS

VDDQ

NC

DQPb

D

DQc

DQc

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQb

DQb

E

DQc

DQc

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQb

DQb

F

DQc

DQc

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQb

DQb

G

DQc

DQc

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQb

DQb

H

NC

NC

 

NC

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

NC

NC

ZZ

J

DQd

DQd

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQa

DQa

K

DQd

DQd

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQa

DQa

L

DQd

DQd

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQa

DQa

M

DQd

DQd

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQa

DQa

N

DQPd

NC

VDDQ

 

VSS

 

 

NC

 

NC

 

 

NC

VSS

VDDQ

NC

DQPa

P

NC/144M

A

 

A

 

A

 

 

TDI

 

A1

TDO

 

 

A

A

A

NC/288M

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

MODE

A

 

A

 

A

 

 

TMS

 

A0

 

TCK

 

 

A

A

A

A

 

 

 

 

 

 

 

 

CY7C1472V25 (4M x 18)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

 

4

 

5

 

 

6

 

7

 

 

 

 

8

 

 

 

 

 

9

10

11

A

NC/576M

A

 

 

 

 

 

 

 

 

NC

 

 

 

 

 

 

 

 

 

 

 

 

 

A

A

A

 

CE

1

 

BW

b

 

 

 

CE

3

 

CEN

 

ADV/LD

 

B

NC/1G

A

CE2

 

NC

 

 

 

 

 

CLK

 

 

 

 

 

 

 

 

 

 

A

A

NC

 

 

 

BW

 

 

 

 

 

 

 

 

 

 

 

 

a

 

 

 

WE

 

OE

C

NC

NC

VDDQ

 

VSS

 

 

VSS

 

VSS

 

VSS

VSS

VDDQ

NC

DQPa

D

NC

DQb

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

NC

DQa

E

NC

DQb

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

NC

DQa

F

NC

DQb

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

NC

DQa

G

NC

DQb

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

NC

DQa

H

NC

NC

 

NC

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

NC

NC

ZZ

J

DQb

NC

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQa

NC

K

DQb

NC

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQa

NC

L

DQb

NC

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQa

NC

M

DQb

NC

VDDQ

 

VDD

 

 

VSS

 

VSS

 

VSS

VDD

VDDQ

DQa

NC

N

DQPb

NC

VDDQ

 

VSS

 

 

NC

 

NC

 

 

NC

VSS

VDDQ

NC

NC

P

NC/144M

A

 

A

 

A

 

 

TDI

 

A1

 

TDO

 

 

A

A

A

NC/288M

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R

MODE

A

 

A

 

A

 

 

TMS

 

A0

 

TCK

 

 

A

A

A

A

Document #: 38-05290 Rev. *I

Page 4 of 28

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Contents Features Logic Block Diagram-CY7C1470V25 2M xFunctional Description Cypress Semiconductor CorporationLogic Block Diagram-CY7C1472V25 4M x Logic Block Diagram-CY7C1474V25 1M xSelection Guide 250 MHz 200 MHz 167 MHz UnitPin Configurations Pin Tqfp Pinout 4M ×CY7C1472V25 4M x Pin Name Type Pin Description Pin DefinitionsByte Write Select Inputs, active L OW . Qualified with Power supply for the I/O circuitry Power supply inputs to the core of the deviceClock input to the Jtag circuitry Single Read Accesses Burst Read AccessesSingle Write Accesses Burst Write AccessesInterleaved Burst Address Table Mode = Floating or VDD Linear Burst Address Table Mode = GNDZZ Mode Electrical Characteristics Partial Write Cycle Description1, 2, 3 Function CY7C1470V25 BW d BW c BW b BW aFunction CY7C1472V25 Function CY7C1474V25TAP Controller Block Diagram TAP Controller State Diagram Ieee 1149.1 Serial Boundary Scan JtagInstruction Register TAP Instruction SetTAP AC Switching Characteristics Over the Operating Range9 TAP TimingParameter Description Min Max Unit Clock Output TimesTAP DC Electrical Characteristics And Operating Conditions 5V TAP AC Test Conditions8V TAP AC Test Conditions Identification Register DefinitionsScan Register Sizes Identification CodesRegister Name Bit Size Instruction Code DescriptionBoundary Scan Exit Order 4M x Boundary Scan Exit Order 2M xBit # Ball ID Boundary Scan Exit Order 1M x A11J10 W10Electrical Characteristics Over the Operating Range12 Maximum RatingsOperating Range Ambient RangeThermal Resistance14 Capacitance14AC Test Loads and Waveforms 250 200 167 Parameter Description Unit Min Max Switching Characteristics Over the Operating Range 15Set-up Times Switching Waveforms Read/Write/Timing21, 22Address A1 A2 DON’T CareZZ Mode Timing25 NOP, Stall and Deselect Cycles21, 22Ordering Information 250 Package Diagrams Pin Thin Plastic Quad Flatpack 14 x 20 x 1.4 mmBall Fbga 15 x 17 x 1.4 mm Ball Fbga 14 x 22 x 1.76 mm ECN No Issue Date Orig. Description of Change Document History472335 See ECN VKN

CY7C1474V25, CY7C1470V25, CY7C1472V25 specifications

The Cypress CY7C1470V25, CY7C1474V25, and CY7C1472V25 are part of Cypress Semiconductor’s family of high-performance synchronous static random-access memory (SRAM) solutions. These memory devices are designed specifically for applications that require fast access times and high bandwidth, making them ideal for a variety of consumer and industrial applications.

One of the standout features of these SRAMs is their performance. They provide high-speed access times, with data transfer rates that can reach up to 1 GHz. This performance is particularly beneficial for high-speed applications including networking equipment, telecommunications, and video processing systems. The CY7C1470V25, for example, offers a 256K x 16 configuration with an access time as low as 3.5 ns. Similarly, the CY7C1474V25 and CY7C1472V25 variants provide respective memory sizes of 1M x 16 and 512K x 16, catering to diverse memory application needs.

These SRAMs utilize a synchronous interface, which provides greater control over data transfers and synchronization with external clock signals. This synchronous operation allows for more efficient data handling in high-speed environments, reducing latency and improving system performance overall.

In terms of power consumption, the Cypress CY7C147x series is designed to operate efficiently. With a low operating voltage of 2.5V, these devices minimize energy usage while still delivering high-speed performance. The low standby power makes them suitable for battery-operated devices, as well as for systems where energy efficiency is a priority.

Furthermore, these SRAMs come with built-in features such as burst mode, which allows for sequential data access, enhancing read and write operations. This is especially useful in applications requiring rapid data retrieval.

The packaging options for the CY7C1470V25, CY7C1474V25, and CY7C1472V25 include both fine-pitch ball grid array (FBGA) and other configurations, facilitating easy integration into various circuit board layouts.

In conclusion, the Cypress CY7C1470V25, CY7C1474V25, and CY7C1472V25 SRAMs are powerful memory solutions that combine high-speed performance, low power consumption, and a synchronous interface. Their robust design makes them suitable for a wide array of applications ranging from communications to consumer electronics, ensuring they meet the demands of modern technology.