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參數(shù)資料
| 型號： | 240VA |
| 廠商： | Lattice Semiconductor Corporation |
| 英文描述： | In-System Programmable 3.3V Generic Digital CrosspointTM |
| 中文描述： | 在系統(tǒng)可編程3.3V的通用數(shù)字CrosspointTM |
| 文件頁數(shù)： | 1/25頁 |
| 文件大?。?/td> | 324K |
| 代理商： | 240VA |
1
ispGDX
In-System Programmable
3.3V Generic Digital Crosspoint
TM
240VA
TM
— Outputs Tri-state During Power-up (“Live Insertion”
Friendly)
DESIGN SUPPORT THROUGH LATTICE’S ispGDX
DEVELOPMENT SOFTWARE
— MS Windows or NT / PC-Based or Sun O/S
— Easy Text-Based Design Entry
— Automatic Signal Routing
— Program up to 100 ISP Devices Concurrently
— Simulator Netlist Generation for Easy Board-Level
Simulation
Functional Block Diagram
Features
IN-SYSTEM PROGRAMMABLE GENERIC DIGITAL
CROSSPOINT FAMILY
— Advanced Architecture Addresses Programmable
PCB Interconnect, Bus Interface Integration and
Jumper/Switch Replacement
— “Any Input to Any Output” Routing
— Fixed HIGH or LOW Output Option for Jumper/DIP
Switch Emulation
— Space-Saving PQFP and BGA Packaging
— Dedicated IEEE 1149.1-Compliant Boundary Scan
Test
HIGH PERFORMANCE E
2
CMOS
TECHNOLOGY
— 3.3V Core Power Supply
— 4.5ns Input-to-Output/4.5ns Clock-to-Output Delay
— 200MHz Maximum Clock Frequency
— TTL/3.3V/2.5V Compatible Input Thresholds and
Output Levels (Individually Programmable)
— Low-Power: 16.5mA Quiescent Icc
— 24mA I
OL
Drive with Programmable Slew Rate
Control Option
— PCI Compatible Drive Capability
— Schmitt Trigger Inputs for Noise Immunity
— Electrically Erasable and Reprogrammable
— Non-Volatile E
2
CMOS Technology
ispGDXVA OFFERS THE FOLLOWING ADVANTAGES
— 3.3V In-System Programmable Using Boundary Scan
Test Access Port (TAP)
— Change Interconnects in Seconds
FLEXIBLE ARCHITECTURE
— Combinatorial/Latched/Registered Inputs or Outputs
— Individual I/O Tri-state Control with Polarity Control
— Dedicated Clock/Clock Enable Input Pins (four) or
Programmable Clocks/Clock Enables from I/O Pins (60)
— Single Level 4:1 Dynamic Path Selection (Tpd = 4.5ns)
— Programmable Wide-MUX Cascade Feature
Supports up to 16:1 MUX
— Programmable Pull-ups, Bus Hold Latch and Open
Drain on I/O Pins
Global Routing
Pool
(GRP)
I/O
Cells
I/O Pins B
Boundary
Scan
Control
I/O
Cells
ISP
Control
I
I
I/O Pins D
Description
The ispGDXVA architecture provides a family of fast,
flexible programmable devices to address a variety of
system-level digital signal routing and interface require-
ments including:
Multi-Port Multiprocessor Interfaces
Wide Data and Address Bus Multiplexing
(e.g. 16:1 High-Speed Bus MUX)
Programmable Control Signal Routing
(e.g. Interrupts, DMAREQs, etc.)
Board-Level PCB Signal Routing for Prototyping or
Programmable Bus Interfaces
The devices feature fast operation, with input-to-output
signal delays (Tpd) of 4.5ns and clock-to-output delays of
4.5ns.
The architecture of the devices consists of a series of
programmable I/O cells interconnected by a Global Rout-
ing Pool (GRP). All I/O pin inputs enter the GRP directly
or are registered or latched so they can be routed to the
required I/O outputs. I/O pin inputs are defined as four
sets (A,B,C,D) which have access to the four MUX inputs
gdx240va_02
Copyright 2000 Lattice Semiconductor Corporation. All brand or product names are trademarks or registered trademarks of their respective holders. The specifications and information herein
are subject to change without notice.
LATTICE SEMICONDUCTOR CORP., 5555 Northeast Moore Ct., Hillsboro, Oregon 97124, U.S.A.
Tel. (503) 268-8000; 1-800-LATTICE; FAX (503) 268-8556; http://www.latticesemi.com
September 2000
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