GAL20LV8D-7LJ LATTICE [Lattice Semiconductor], GAL20LV8D-7LJ Datasheet

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GAL20LV8D-7LJ

Manufacturer Part Number
GAL20LV8D-7LJ
Description
Low Voltage E2CMOS PLD Generic Array Logic
Manufacturer
LATTICE [Lattice Semiconductor]
Datasheet
• HIGH PERFORMANCE E
• 3.3V LOW VOLTAGE 20V8 ARCHITECTURE
• ACTIVE PULL-UPS ON ALL PINS
• E
• EIGHT OUTPUT LOGIC MACROCELLS
• PRELOAD AND POWER-ON RESET OF ALL REGISTERS
• APPLICATIONS INCLUDE:
• ELECTRONIC SIGNATURE FOR IDENTIFICATION
The GAL20LV8D, at 3.5 ns maximum propagation delay time,
provides the highest speed performance available in the PLD
market.
Semiconductor's advanced 3.3V E
bines CMOS with Electrically Erasable (E
High speed erase times (<100ms) allow the devices to be repro-
grammed quickly and efficiently.
The generic architecture provides maximum design flexibility by
allowing the Output Logic Macrocell (OLMC) to be configured by
the user. An important subset of the many architecture configura-
tions possible with the GAL20LV8D are the PAL architectures listed
in the table of the macrocell description section. GAL20LV8D
devices are capable of emulating any of these PAL architectures
with full function/fuse map compatibility.
Unique test circuitry and reprogrammable cells allow complete AC,
DC, and functional testing during manufacture. As a result, Lattice
Semiconductor delivers 100% field programmability and function-
ality of all GAL products. In addition, 100 erase/write cycles and
data retention in excess of 20 years are specified.
Copyright © 2000 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
20lv8_05
Features
Description
— 3.5 ns Maximum Propagation Delay
— Fmax = 250 MHz
— 2.5 ns Maximum from Clock Input to Data Output
— UltraMOS
— TTL-Compatible Balanced 8mA Output Drive
— JEDEC-Compatible 3.3V Interface Standard
— 5V Compatible Inputs
— Reconfigurable Logic
— Reprogrammable Cells
— 100% Tested/100% Yields
— High Speed Electrical Erasure (<100ms)
— 20 Year Data Retention
— Maximum Flexibility for Complex Logic Designs
— Programmable Output Polarity
— 100% Functional Testability
— Glue Logic for 3.3V Systems
— DMA Control
— State Machine Control
— High Speed Graphics Processing
— Standard Logic Speed Upgrade
2
CELL TECHNOLOGY
The GAL20LV8D is manufactured using Lattice
®
Advanced CMOS Technology
2
CMOS
2
®
CMOS process, which com-
TECHNOLOGY
2
) floating gate technology.
1
Functional Block Diagram
Pin Configuration
I/CLK
I
I
I
I
I
I
I
I
I
I
NC
I
I
I
I
I
I
11
5
7
9
12
4
GAL20LV8D
Low Voltage E
Top View
14
2
PLCC
Generic Array Logic™
GAL20LV8
28
16
8
8
8
8
8
8
8
8
IMUX
OLMC
OLMC
OLMC
OLMC
OLMC
OLMC
OLMC
OLMC
26
IMUX
18
25
23
21
19
2
CMOS PLD
OE
CLK
I/O/Q
I/O/Q
I/O/Q
NC
I/O/Q
I/O/Q
I/O/Q
March 2000
I
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I
I/OE

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GAL20LV8D-7LJ Summary of contents

Page 1

... Output Logic Macrocell (OLMC configured by the user. An important subset of the many architecture configura- tions possible with the GAL20LV8D are the PAL architectures listed in the table of the macrocell description section. GAL20LV8D devices are capable of emulating any of these PAL architectures with full function/fuse map compatibility ...

Page 2

... Commercial Grade Specifications Tpd (ns) Tsu (ns) Tco (ns) Icc (mA) 3 Part Number Description GAL20LV8D Device Name Speed (ns Low Power Power Ordering # GAL20LV8D-3LJ 70 70 GAL20LV8D-5LJ 70 GAL20LV8D-7LJ _ XXXXXXXX Specifications GAL20LV8 Package 28-Lead PLCC 28-Lead PLCC 28-Lead PLCC Grade Blank = Commercial Package J = PLCC ...

Page 3

... The following is a list of the PAL architectures that the GAL20LV8D can emulate. It also shows the OLMC mode under which the devices emulate the PAL architecture. ...

Page 4

Registered Mode In the Registered mode, macrocells are configured as dedicated registered outputs or as I/O functions. Architecture configurations available in this mode are similar to the common 20R8 and 20RP4 devices with various permutations of polarity, I/O and register ...

Page 5

Registered Mode Logic Diagram 0000 0280 4 0320 0600 5 0640 0920 6 0960 1240 7 1280 1560 9 1600 1880 10 1920 2200 11 2240 2520 12 13 64-USER ELECTRONIC SIGNATURE FUSES 2568, 2569, .... Byte7 ...

Page 6

Complex Mode In the Complex mode, macrocells are configured as output only or I/O functions. Architecture configurations available in this mode are similar to the common 20L8 and 20P8 devices with programmable polarity in each macrocell six I/Os ...

Page 7

Complex Mode Logic Diagram 0000 0280 4 0320 0600 5 0640 0920 6 0960 1240 7 1280 1560 9 1600 1880 10 1920 2200 11 2240 2520 12 13 64-USER ELECTRONIC SIGNATURE FUSES 2568, 2569, .... Byte7 ...

Page 8

Simple Mode In the Simple mode, pins are configured as dedicated inputs or as dedicated, always active, combinatorial outputs. Architecture configurations available in this mode are similar to the common 14L8 and 16P6 devices with many permutations of ge- neric ...

Page 9

Simple Mode Logic Diagram 0000 0280 4 0320 0600 5 0640 0920 6 0960 1240 7 1280 1560 9 1600 1880 10 1920 2200 11 2240 2520 12 13 64-USER ELECTRONIC SIGNATURE FUSES 2568, 2569, .... Byte7 ...

Page 10

Absolute Maximum Ratings Supply voltage V ................................... –0.5 to +4.6V CC Input voltage applied ................................ –0.5 to +5.6V I/O voltage applied ................................... –0.5 to +4.6V Off-state output voltage applied ............... –0.5 to +4.6V Storage Temperature ................................ –65 to 150 C ...

Page 11

AC Switching Characteristics TEST DESCRIPTION PARAMETER COND Input or I/O to Combinational Output Clock to Output Delay — Clock to Feedback Delay t su — Setup Time, ...

Page 12

Switching Waveforms INPUT or I/O FEEDBACK COMBINATIONAL OUTPUT Combinatorial Output INPUT or I/O FEEDBACK t dis COMBINATIONAL OUTPUT Input or I/O to Output Enable/Disable t wh CLK f 1/ max (w/o fb) Clock Width Specifications GAL20LV8 INPUT or I/O FEEDBACK ...

Page 13

Descriptions max with External Feedback 1/( Note: fmax with external feedback is calculated from measured tsu and ...

Page 14

... NOTE: The electronic signature is included in checksum calcula- tions. Changing the electronic signature will alter the checksum. Security Cell A security cell is provided in the GAL20LV8D devices to prevent unauthorized copying of the array patterns. Once programmed, this cell prevents further read access to the functional bits in the device ...

Page 15

... Power-Up Reset INTERNAL REGISTER Q - OUTPUT FEEDBACK/EXTERNAL OUTPUT REGISTER Circuitry within the GAL20LV8D provides a reset signal to all reg- isters during power-up. All internal registers will have their Q outputs t set low after a specified time ( pr MAX result, the state on the registered output pins (if they are enabled) will always be high on power-up, regardless of the programmed polarity of the output pins ...

Page 16

Typical AC and DC Characteristic Diagrams Normalized Tpd vs Vcc 1.2 PT H->L 1.1 PT L->H 1 0.9 0.8 3.00 3.15 3.30 3.45 3.60 Supply Voltage (V) Normalized Tpd vs Temp 1.2 PT H->L 1.1 PT L->H 1 0.9 0.8 ...

Page 17

Typical AC and DC Characteristic Diagrams Vol vs Iol 1 0.75 0.5 0.25 0 0.00 5.00 10.00 15.00 20.00 25.00 30.00 Iol (mA) Normalized Icc vs Vcc 1.20 1.10 1.00 0.90 0.80 3.00 3.15 3.30 3.45 Supply Voltage (V) Delta ...

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