IDT70T633 Integrated Device Technology, IDT70T633 Datasheet - Page 26

• Manufacturer Part Number: IDT70T633
• Description: 512k X 18, 3.3v/2.5v Dual-port Ram, Interleaved I/o
• Manufacturer: Integrated Device Technology

Identification Register Definitions
NOTE:
1. Device ID for IDT70T631 is 0x33C.
System Interface Parameters
Scan Register Sizes
NOTES:
1. Device outputs = All device outputs except TDO.
2. Device inputs = All device inputs except TDI, TMS, and TRST.
3. The Boundary Scan Descriptive Language (BSDL) file for this device is available on the IDT website (www.idt.com), or by contacting your local
Revision Number (31:28)
IDT Device ID (27:12)
IDT JEDEC ID (11:1)
ID Register Indicator Bit (Bit 0)
EXTEST
BYPASS
IDCODE
HIGHZ
CLAMP
SAMPLE/PRELOAD
RESERVED
Instruction (IR)
Bypass (BYR)
Identification (IDR)
Boundary Scan (BSR)
IDT70T633/1S
High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM
IDT sales representative.
Register Name
Instruction Field
Instruction
Bit Size
Note (3)
All other codes
32
4
1
0x33B
Value
Code
0x33
0000
0010
0100
0011
0001
1111
0x0
1
(1)
5670 tbl 22
26
Reserved for version number
Defines IDT part number 70T633
Indicates the presence of an ID register
Forces contents of the boundary scan cells onto the device outputs
Places the boundary scan register (BSR) between TDI and TDO.
Places the bypass register (BYR) between TDI and TDO.
Loads the ID register (IDR) with the vendor ID code and places the
register between TDI and TDO.
Places the bypass register (BYR) between TDI and TDO. Forces all
device output drivers to a High-Z state.
Uses BYR. Forces contents of the boundary scan cells onto the device
outputs. Places the bypass register (BYR) between TDI and TDO.
Places the boundary scan register (BSR) between TDI and TDO.
SAMPLE allows data from device inputs
in the boundary scan cells and shifted serially through TDO. PRELOAD
allows data to be input serially into the boundary scan cells via the TDI.
Several combinations are reserved. Do not use codes other than those
identified above.
Allows unique identification of device vendor as IDT
Industrial and Commercial Temperature Ranges
Description
Description
(2)
and outputs
(1)
to be captured
5670 tbl 23
5670 tbl 21
(1)
.