72T7285L4-4BB IDT, Integrated Device Technology Inc, 72T7285L4-4BB Datasheet - Page 29
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72T7285L4-4BB
Manufacturer Part Number
72T7285L4-4BB
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.72T7285L4-4BB.pdf
(53 pages)
Specifications of 72T7285L4-4BB
Configuration
Dual
Density
1.125Mb
Access Time (max)
3.4ns
Word Size
72b
Organization
16Kx72
Sync/async
Synchronous
Expandable
Yes
Bus Direction
Uni-Directional
Package Type
BGA
Clock Freq (max)
225MHz
Operating Supply Voltage (typ)
2.5V
Operating Supply Voltage (min)
2.375V
Operating Supply Voltage (max)
2.625V
Supply Current
130mA
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
324
Lead Free Status / Rohs Status
Not Compliant
JTAG INTERFACE
support the JTAG boundary scan interface. The IDT72T7285/72T7295/
72T72105/72T72115 incorporates the necessary tap controller and modified
pad cells to implement the JTAG facility.
program files for these devices.
TEST ACCESS PORT (TAP)
internal of the processor. It consists of four input ports (TCLK, TMS, TDI, TRST)
and one output port (TDO).
16,384 x 72, 32,768 x 72, 65,536 x 72, 131,072 x 72
Five additional pins (TDI, TDO, TMS, TCK and TRST) are provided to
Note that IDT provides appropriate Boundary Scan Description Language
The Tap interface is a general-purpose port that provides access to the
TDO
TDI
TMS
TCLK
TRST
T
A
P
Cont-
roller
TAP
clkDR, ShiftDR
Figure 7. Boundary Scan Architecture
clklR, ShiftlR
UpdatelR
UpdateDR
Instruction Register
29
Control Signals
complete description refer to the IEEE Standard Test Access Port Specification
(IEEE Std. 1149.1-1990).
THE TAP CONTROLLER
TMS and TCLK signals to generate clock and control signals to the Instruction
and Data Registers for capture and update of data.
DeviceID Reg.
Boundary Scan Reg.
Bypass Reg.
The Standard JTAG interface consists of four basic elements:
•
•
•
•
The following sections provide a brief description of each element. For a
The Figure below shows the standard Boundary-Scan Architecture
The Tap controller is a synchronous finite state machine that responds to
Test Access Port (TAP)
TAP controller
Instruction Register (IR)
Data Register Port (DR)
Instruction Decode
Mux
5994 drw12
COMMERCIAL AND INDUSTRIAL
TEMPERATURE RANGES