CY7C1518AV18-278BZI CYPRESS [Cypress Semiconductor], CY7C1518AV18-278BZI Datasheet - Page 17

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CY7C1518AV18-278BZI

Manufacturer Part Number
CY7C1518AV18-278BZI
Description
72-Mbit DDR-II SRAM 2-Word Burst Architecture
Manufacturer
CYPRESS [Cypress Semiconductor]
Datasheet
Identification Register Definitions
Scan Register Sizes
Instruction Codes
Document Number: 001-06982 Rev. *C
Revision Number
(31:29)
Cypress Device ID
(28:12)
Cypress JEDEC ID
(11:1)
ID Register
Presence (0)
Instruction
Bypass
ID
Boundary Scan
EXTEST
IDCODE
SAMPLE Z
RESERVED
SAMPLE/PRELOAD
RESERVED
RESERVED
BYPASS
Instruction Field
Instruction
11010100010000100 11010100010001100 11010100010010100 11010100010100100 Defines the type of
CY7C1516AV18
00000110100
Register Name
Code
001
000
001
010
100
101
011
110
111
1
Captures the input and output ring contents.
Loads the ID register with the vendor ID code and places the register between TDI and TDO.
This operation does not affect SRAM operation.
Captures the input and output contents. Places the boundary scan register between TDI and
TDO. Forces all SRAM output drivers to a High-Z state.
Do Not Use: This instruction is reserved for future use.
Captures the input and output ring contents. Places the boundary scan register between TDI
and TDO. Does not affect the SRAM operation.
Do Not Use: This instruction is reserved for future use.
Do Not Use: This instruction is reserved for future use.
Places the bypass register between TDI and TDO. This operation does not affect SRAM
operation.
CY7C1527AV18
00000110100
001
1
Value
CY7C1518AV18
00000110100
001
1
CY7C1516AV18, CY7C1527AV18
CY7C1518AV18, CY7C1520AV18
Description
CY7C1520AV18
00000110100
Bit Size
109
32
001
3
1
1
Version number.
SRAM.
Allows unique
identification of
SRAM vendor.
Indicates the
presence of an ID
register.
Description
Page 17 of 30
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