Cypress CY7C1474V25, CY7C1470V25, CY7C1472V25 Boundary Scan Exit Order 1M x, A11, J10, W10, V10

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CY7C1470V25

CY7C1472V25

CY7C1474V25

Boundary Scan Exit Order (1M x 72)

Bit #

209-Ball ID

 

Bit #

209-Ball ID

 

Bit #

209-Ball ID

 

Bit #

209-Ball ID

1

A1

 

29

T1

 

57

U10

 

85

B11

 

 

 

 

 

 

 

 

 

 

 

2

A2

 

30

T2

 

58

T11

 

86

B10

 

 

 

 

 

 

 

 

 

 

 

3

B1

 

31

U1

 

59

T10

 

87

A11

 

 

 

 

 

 

 

 

 

 

 

4

B2

 

32

U2

 

60

R11

 

88

A10

 

 

 

 

 

 

 

 

 

 

 

5

C1

 

33

V1

 

61

R10

 

89

A7

 

 

 

 

 

 

 

 

 

 

 

6

C2

 

34

V2

 

62

P11

 

90

A5

 

 

 

 

 

 

 

 

 

 

 

7

D1

 

35

W1

 

63

P10

 

91

A9

 

 

 

 

 

 

 

 

 

 

 

8

D2

 

36

W2

 

64

N11

 

92

U8

 

 

 

 

 

 

 

 

 

 

 

9

E1

 

37

T6

 

65

N10

 

93

A6

 

 

 

 

 

 

 

 

 

 

 

10

E2

 

38

V3

 

66

M11

 

94

D6

 

 

 

 

 

 

 

 

 

 

 

11

F1

 

39

V4

 

67

M10

 

95

K6

 

 

 

 

 

 

 

 

 

 

 

12

F2

 

40

U4

 

68

L11

 

96

B6

 

 

 

 

 

 

 

 

 

 

 

13

G1

 

41

W5

 

69

L10

 

97

K3

 

 

 

 

 

 

 

 

 

 

 

14

G2

 

42

V6

 

70

P6

 

98

A8

 

 

 

 

 

 

 

 

 

 

 

15

H1

 

43

W6

 

71

J11

 

99

B4

 

 

 

 

 

 

 

 

 

 

 

16

H2

 

44

V5

 

72

J10

 

100

B3

 

 

 

 

 

 

 

 

 

 

 

17

J1

 

45

U5

 

73

H11

 

101

C3

 

 

 

 

 

 

 

 

 

 

 

18

J2

 

46

U6

 

74

H10

 

102

C4

 

 

 

 

 

 

 

 

 

 

 

19

L1

 

47

W7

 

75

G11

 

103

C8

 

 

 

 

 

 

 

 

 

 

 

20

L2

 

48

V7

 

76

G10

 

104

C9

 

 

 

 

 

 

 

 

 

 

 

21

M1

 

49

U7

 

77

F11

 

105

B9

 

 

 

 

 

 

 

 

 

 

 

22

M2

 

50

V8

 

78

F10

 

106

B8

 

 

 

 

 

 

 

 

 

 

 

23

N1

 

51

V9

 

79

E10

 

107

A4

 

 

 

 

 

 

 

 

 

 

 

24

N2

 

52

W11

 

80

E11

 

108

C6

 

 

 

 

 

 

 

 

 

 

 

25

P1

 

53

W10

 

81

D11

 

109

B7

 

 

 

 

 

 

 

 

 

 

 

26

P2

 

54

V11

 

82

D10

 

110

A3

 

 

 

 

 

 

 

 

 

 

 

27

R2

 

55

V10

 

83

C11

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

R1

 

56

U11

 

84

C10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Document #: 38-05290 Rev. *I

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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.