Cypress CY7C1470V25 Boundary Scan Exit Order 2M x, Boundary Scan Exit Order 4M x, Bit # Ball ID

Page 15

CY7C1470V25

CY7C1472V25

CY7C1474V25

Boundary Scan Exit Order (2M x 36)

Bit #

165-Ball ID

 

Bit #

165-Ball ID

 

Bit #

165-Ball ID

1

C1

 

21

R3

 

41

J11

 

 

 

 

 

 

 

 

2

D1

 

22

P2

 

42

K10

 

 

 

 

 

 

 

 

3

E1

 

23

R4

 

43

J10

 

 

 

 

 

 

 

 

4

D2

 

24

P6

 

44

H11

 

 

 

 

 

 

 

 

5

E2

 

25

R6

 

45

G11

 

 

 

 

 

 

 

 

6

F1

 

26

R8

 

46

F11

 

 

 

 

 

 

 

 

7

G1

 

27

P3

 

47

E11

 

 

 

 

 

 

 

 

8

F2

 

28

P4

 

48

D10

 

 

 

 

 

 

 

 

9

G2

 

29

P8

 

49

D11

 

 

 

 

 

 

 

 

10

J1

 

30

P9

 

50

C11

 

 

 

 

 

 

 

 

11

K1

 

31

P10

 

51

G10

 

 

 

 

 

 

 

 

12

L1

 

32

R9

 

52

F10

 

 

 

 

 

 

 

 

13

J2

 

33

R10

 

53

E10

 

 

 

 

 

 

 

 

14

M1

 

34

R11

 

54

A9

 

 

 

 

 

 

 

 

15

N1

 

35

N11

 

55

B9

 

 

 

 

 

 

 

 

16

K2

 

36

M11

 

56

A10

 

 

 

 

 

 

 

 

17

L2

 

37

L11

 

57

B10

 

 

 

 

 

 

 

 

18

M2

 

38

M10

 

58

A8

 

 

 

 

 

 

 

 

19

R1

 

39

L10

 

59

B8

 

 

 

 

 

 

 

 

20

R2

 

40

K11

 

60

A7

 

 

 

 

 

 

 

 

Boundary Scan Exit Order (4M x 18)

Bit #

165-Ball ID

 

Bit #

165-Ball ID

 

Bit #

165-Ball ID

1

D2

 

14

R4

 

27

L10

 

 

 

 

 

 

 

 

2

E2

 

15

P6

 

28

K10

 

 

 

 

 

 

 

 

3

F2

 

16

R6

 

29

J10

 

 

 

 

 

 

 

 

4

G2

 

17

R8

 

30

H11

 

 

 

 

 

 

 

 

5

J1

 

18

P3

 

31

G11

 

 

 

 

 

 

 

 

6

K1

 

19

P4

 

32

F11

 

 

 

 

 

 

 

 

7

L1

 

20

P8

 

33

E11

 

 

 

 

 

 

 

 

8

M1

 

21

P9

 

34

D11

 

 

 

 

 

 

 

 

9

N1

 

22

P10

 

35

C11

 

 

 

 

 

 

 

 

10

R1

 

23

R9

 

36

A11

 

 

 

 

 

 

 

 

11

R2

 

24

R10

 

37

A9

 

 

 

 

 

 

 

 

12

R3

 

25

R11

 

38

B9

 

 

 

 

 

 

 

 

13

P2

 

26

M10

 

39

A10

 

 

 

 

 

 

 

 

Bit #

165-Ball ID

61B7

62B6

63A6

64B5

65A5

66A4

67B4

68B3

69A3

70A2

71B2

Bit #

165-Ball ID

40

B10

 

 

41

A8

 

 

42

B8

 

 

43

A7

 

 

44

B7

 

 

45

B6

 

 

46

A6

 

 

47

B5

 

 

48

A4

 

 

49

B3

 

 

50

A3

 

 

51

A2

 

 

52

B2

 

 

Document #: 38-05290 Rev. *I

Page 15 of 28

[+] Feedback

Image 15
Contents Cypress Semiconductor Corporation FeaturesLogic Block Diagram-CY7C1470V25 2M x Functional Description250 MHz 200 MHz 167 MHz Unit Logic Block Diagram-CY7C1472V25 4M xLogic Block Diagram-CY7C1474V25 1M x Selection Guide4M × Pin Configurations Pin Tqfp PinoutCY7C1472V25 4M x Pin Definitions Pin Name Type Pin DescriptionByte Write Select Inputs, active L OW . Qualified with Power supply inputs to the core of the device Power supply for the I/O circuitryClock input to the Jtag circuitry Burst Write Accesses Single Read AccessesBurst Read Accesses Single Write AccessesLinear Burst Address Table Mode = GND Interleaved Burst Address Table Mode = Floating or VDDZZ Mode Electrical Characteristics Function CY7C1474V25 Partial Write Cycle Description1, 2, 3Function CY7C1470V25 BW d BW c BW b BW a Function CY7C1472V25Ieee 1149.1 Serial Boundary Scan Jtag TAP Controller Block Diagram TAP Controller State DiagramTAP Instruction Set Instruction RegisterOutput Times TAP AC Switching Characteristics Over the Operating Range9TAP Timing Parameter Description Min Max Unit ClockIdentification Register Definitions TAP DC Electrical Characteristics And Operating Conditions5V TAP AC Test Conditions 8V TAP AC Test ConditionsInstruction Code Description Scan Register SizesIdentification Codes Register Name Bit SizeBoundary Scan Exit Order 2M x Boundary Scan Exit Order 4M xBit # Ball ID W10 Boundary Scan Exit Order 1M xA11 J10Ambient Range Electrical Characteristics Over the Operating Range12Maximum Ratings Operating RangeCapacitance14 Thermal Resistance14AC Test Loads and Waveforms Switching Characteristics Over the Operating Range 15 250 200 167 Parameter Description Unit Min MaxSet-up Times DON’T Care Switching WaveformsRead/Write/Timing21, 22 Address A1 A2NOP, Stall and Deselect Cycles21, 22 ZZ Mode Timing25Ordering Information 250 Pin Thin Plastic Quad Flatpack 14 x 20 x 1.4 mm Package DiagramsBall Fbga 15 x 17 x 1.4 mm Ball Fbga 14 x 22 x 1.76 mm Document History ECN No Issue Date Orig. Description of ChangeVKN 472335 See ECN

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.