Cypress CY7C1471V25, CY7C1473V25, CY7C1475V25 Switching Waveforms

CY7C1471V25

CY7C1473V25

CY7C1475V25

Document #: 38-05287 Rev. *I Page 26 of 32

Figure3 shows ZZ Mode timing waveform.[23, 24]

Figure 3. ZZ Mode Timing

Switching Waveforms (continued)

tZZ

SUPPLY

CLK

tZZREC

ALLINPUTS

(except ZZ)

DON’T CARE

IDDZZ

tZZI

tRZZI

Outputs(Q)

High-Z

DESELECTor READ Only

Notes

23.Device must be deselected when entering ZZ mode. See “Truth Table” on page11 for all possible signal conditions to deselect the device.

24.DQs are in high-Z when exiting ZZ sleep mode.

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Contents

Main 72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Through SRAM with NoBL Architecture CY7C1471V25 CY7C1473V25 CY7C1475V25 Features Functional Description Selection Guide CY7C1471V25 CY7C1473V25 CY7C1475V25 Document #: 38-05287 Rev. *I Page 2 of 32 Logic Block Diagram CY7C1471V25 (2M x 36) C B CY7C1473V25 Document #: 38-05287 Rev. *I Page 3 of 32 Logic Block Diagram CY7C1475V25 (1M x 72) DQs DQPa DQPb DQPc DQPd DQPe DQPf DQPg DQPh CY7C1471V25 CY7C1473V25 CY7C1475V25 Pin Configurations 100-Pin TQFP Pinout CY7C1471V25 CY7C1471V25 CY7C1473V25 CY7C1475V25 Document #: 38-05287 Rev. *I Page 5 of 32 100-Pin TQFP Pinout CY7C1473V25 165-Ball FBGA (15 x 17 x 1.4 mm) Pinout CY7C1471V25 (2M x 36) 2345671 A B C D E F G H J K L M N P R 891011 CY7C1473V25 (4M x 18) 2345671 A B C D E F G H J K L M N P R CY7C1471V25 CY7C1473V25 CY7C1475V25 CY7C1475V25 (1M 72) Document #: 38-05287 Rev. *I Page 7 of 32 A B C D E F G H J K L M N P R T U V W 12 34 5 6 789 1110 Pin Definitions Functional Overview Pin Definitions Interleaved Burst Address Table (MODE = Floating or VDD) Linear Burst Address Table (MODE = GND) ZZ Mode Electrical Characteristics Truth Table Page IEEE 1149.1 Serial Boundary Scan (JTAG) TAP Controller State Diagram TAP Controller Block Diagram CY7C1471V25 CY7C1473V25 CY7C1475V25 TAP Ti ming TAP AC Switching Characteristics 1.8V TAP AC Test Conditions 2.5V TAP AC Test Conditions 50 TDO 50 Scan Register Sizes Identification Codes Boundary Scan Exit Order (2M x 36) Boundary Scan Exit Order (4M x 18) Boundary Scan Exit Order (1M x 72) Maximum Ratings Operating Range Electrical Characteristics Capacitance Thermal Resistance AC Test Loads and Waveforms Switching Characteristics Switching Waveforms Figure1 shows re ad-write timing waveform.[19, 20, 21] Figure 1. Read/Write Timing 123456789 CLK 10 DONT CARE UNDEFINED OE BW CY7C1471V25 CY7C1473V25 CY7C1475V25 Figure3 shows ZZ Mode timing waveform.[23, 24] Figure 3. ZZ Mode Timing Switching Waveforms Ordering Information Document #: 38-05287 Rev. *I Page 28 of 32 Package Diagrams Figure 4. 100-Pin Thin Plastic Quad Flatpack (14 x 20 x 1.4 mm), 51-85050 A Figure 5. 165-Ball FBGA (15 x 17 x 1.4 mm), 51-85165 Package Diagrams 51-85165-*A Page Document History Page