ISPLSI3256A-50LM LATTICE [Lattice Semiconductor], ISPLSI3256A-50LM Datasheet

no-image

ISPLSI3256A-50LM

Manufacturer Part Number
ISPLSI3256A-50LM
Description
In-System Programmable High Density PLD
Manufacturer
LATTICE [Lattice Semiconductor]
Datasheet
Copyright © 1999 Lattice Semiconductor Corp. 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
• HIGH-DENSITY PROGRAMMABLE LOGIC
• HIGH-PERFORMANCE E
• IN-SYSTEM PROGRAMMABLE
• 100% IEEE 1149.1 BOUNDARY SCAN COMPATIBLE
• OFFERS THE EASE OF USE AND FAST SYSTEM
• ispDesignEXPERT™ – LOGIC COMPILER AND COM-
3256a_09
Features
— 128 I/O Pins
— 11000 PLD Gates
— 384 Registers
— High Speed Global Interconnect
— Wide Input Gating for Fast Counters, State
— Small Logic Block Size for Random Logic
— TTL Compatible Inputs and Outputs
— Electrically Erasable and Reprogrammable
— Non-Volatile
— 100% Tested at Time of Manufacture
— Unused Product Term Shutdown Saves Power
— 5V In-System Programmable (ISP™) using Lattice
— Increased Manufacturing Yields, Reduced Time-to-
— Reprogram Soldered Devices for Faster Debugging
SPEED OF PLDs WITH THE DENSITY AND FLEXIBILITY
OF FIELD PROGRAMMABLE GATE ARRAYS
— Complete Programmable Device Can Combine Glue
— Enhanced Pin Locking Capability
— Five Dedicated Clock Input Pins
— Synchronous and Asynchronous Clocks
— Programmable Output Slew Rate Control to Mini-
— Flexible Pin Placement
— Optimized Global Routing Pool Provides Global
PLETE ISP DEVICE DESIGN SYSTEMS FROM HDL
SYNTHESIS THROUGH IN-SYSTEM PROGRAMMING
— Superior Quality of Results
— Tightly Integrated with Leading CAE Vendor Tools
— Productivity Enhancing Timing Analyzer, Explore
— PC and UNIX Platforms
Market, and Improved Product Quality
ISP or Boundary Scan Test (IEEE 1149.1) Protocol
Machines, Address Decoders, etc.
f
t
Logic and Structured Designs
mize Switching Noise
Interconnectivity
Tools, Timing Simulator and ispANALYZER™
max = 90 MHz Maximum Operating Frequency
pd = 12 ns Propagation Delay
2
CMOS
®
TECHNOLOGY
1
In-System Programmable High Density PLD
The ispLSI 3256A is a High-Density Programmable Logic
Device containing 384 Registers, 128 Universal I/O pins,
five Dedicated Clock Input Pins, eight Output Routing
Pools (ORP) and a Global Routing Pool (GRP) which
allows complete inter-connectivity between all of these
elements. The ispLSI 3256A features 5V in-system
programmability and in-system diagnostic capabilities.
The ispLSI 3256A offers non-volatile reprogrammability
of the logic, as well as the interconnect to provide truly
reconfigurable systems.
The basic unit of logic on the ispLSI 3256A device is the
Twin Generic Logic Block (Twin GLB) labelled A0, A1...H3.
There are a total of 32 Twin GLBs in the ispLSI 3256A
device. Each Twin GLB has 24 inputs, a programmable
AND array and two OR/Exclusive-OR Arrays, and eight
outputs which can be configured to be either combinato-
rial or registered. All Twin GLB inputs come from the
GRP.
Functional Block Diagram
Description
A0
A3
B0
B3
A1
A2
B1
B2
H3
C0
Output Routing Pool
Output Routing Pool
H2
C1
H1
C2
ispLSI
Global Routing Pool
H0
C3
Array
Array
OR
OR
G3
D0
Output Routing Pool
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
Output Routing Pool
G2
D1
®
Twin
GLB
3256A
G1
D2
G0
D3
May 1999
Boundary
E3
E2
E1
E0
F3
F2
F1
F0
Scan
0139A

Related parts for ISPLSI3256A-50LM

ISPLSI3256A-50LM Summary of contents

Page 1

Features • HIGH-DENSITY PROGRAMMABLE LOGIC — 128 I/O Pins — 11000 PLD Gates — 384 Registers — High Speed Global Interconnect — Wide Input Gating for Fast Counters, State Machines, Address Decoders, etc. — Small Logic Block Size for Random ...

Page 2

Functional Block Diagram Figure 1. ispLSI 3256A Functional Block Diagram Input Bus Generic TOE Logic Output Routing Pool (ORP) Blocks H3 H2 I I/O 2 I/O 3 I I/O 6 I/O 7 ...

Page 3

Description (continued) All local logic block outputs are brought back into the GRP so they can be connected to the inputs of any other logic block on the device. The device also has 128 I/O cells, each of which is ...

Page 4

Absolute Maximum Ratings Supply Voltage V .................................. -0.5 to +7.0V cc Input Voltage Applied ........................ -2 Off-State Output Voltage Applied ..... -2 Storage Temperature ................................ -65 to 150 C Case Temp. with Power Applied .............. -55 ...

Page 5

Switching Test Conditions Input Pulse Levels Input Rise and Fall Time Input Timing Reference Levels Output Timing Reference Levels Output Load 3-state levels are measured 0.5V from steady-state active level. Output Load conditions (See Figure 2) TEST CONDITION A 470 ...

Page 6

External Switching Characteristics 5 TEST 2 PARAMETER # COND Data Prop. Delay, 4PT Bypass, ORP Bypass pd1 Data Prop. Delay pd2 Clk Frequency with Internal Feedback max f max (Ext.) – ...

Page 7

Internal Timing Parameters 2 PARAMETER # Inputs t 24 I/O Register Bypass iobp t iolat 25 I/O Latch Delay t 26 I/O Register Setup Time before Clock iosu t 27 I/O Register Hold Time after Clock ioh t 28 I/O ...

Page 8

Internal Timing Parameters 2 PARAMETER # Outputs t 46 Output Buffer Delay Output Buffer Delay, Slew Limited Adder obs t 48 I/O Cell OE to Output Enabled oen t 49 I/O Cell OE to Output Disabled odis ...

Page 9

Timing Model I/O Cell I/O Reg Bypass I/O Pin #24 (Input) Input Register D Q RST #52 # Reset Y3,4 #51 Y0,1,2 GOE0,1 TOE Derivations of su, h and co from the Product ...

Page 10

Power Consumption Power consumption in the ispLSI 3256A device depends on two primary factors: the speed at which the device is operating and the number of product terms used. Figure 3. Typical Device Power Consumption vs fmax 400 300 200 ...

Page 11

Pin Description NAME PQFP/MQFP PIN NUMBERS I I/O 4 25, 26, 28, I I/O 9 32, 33, 34, I I/O 14 37, 38, 39, I I/O 19 42, 43, 44, I/O 20 ...

Page 12

Pin Configuration ispLSI 3256A 160-Pin MQFP and 160-Pin PQFP Pinout Diagram 1 GND 2 I/O 114 I/O 115 3 I/O 116 4 5 I/O 117 6 I/O 118 I/O 119 7 I/O 120 8 9 I/O 121 10 GND 11 ...

Page 13

Part Number Description ispLSI Device Family Device Number Speed MHz max MHz max MHz max Ordering Information FAMILY fmax (MHz) tpd (ns ispLSI 77 ...

Related keywords