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PALCE20V8-7

Description
Flash-Erasable Reprogrammable CMOS PAL㈢ Device
File Size316KB,14 Pages
ManufacturerCypress Semiconductor
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PALCE20V8-7 Overview

Flash-Erasable Reprogrammable CMOS PAL㈢ Device

USE ULTRA37000
TM
FOR
ALL NEW DESIGNS
PALCE20V8
Flash-Erasable Reprogrammable
CMOS PAL
®
Device
Features
• Active pull-up on data input pins
• Low power version (20V8L)
— 55 mA max. commercial (15, 25 ns)
— 65 mA max. military/industrial
(15, 25 ns)
• Standard version has low power
— 90 mA max. commercial
(15, 25 ns)
— 115 mA max. commercial (10 ns)
— 130 mA max. military/industrial (15, 25 ns)
• CMOS Flash technology for electrical erasability and
reprogrammability
• User-programmable macrocell
— Output polarity control
— Individually selectable for registered or combina-
torial operation
• QSOP package available
— 10, 15, and 25 ns com’l version
— 15, and 25 ns military/industrial versions
• High reliability
— Proven Flash technology
— 100% programming and functional testing
Functional Description
The Cypress PALCE20V8 is a CMOS Flash Erasable
second-generation programmable array logic device. It is
implemented with the familiar sum-of-product (AND-OR) logic
structure and the programmable macrocell.
The PALCE20V8 is executed in a 24-pin 300-mil molded DIP,
a 300-mil cerdip, a 28-lead square ceramic leadless chip
carrier, a 28-lead square plastic leaded chip carrier, and a
24-lead quarter size outline. The device provides up to 20
inputs and 8 outputs. The PALCE20V8 can be electrically
erased and reprogrammed. The programmable macrocell
enables the device to function as a superset to the familiar
24-pin PLDs such as 20L8, 20R8, 20R6, 20R4.
Logic Block Diagram (PDIP/CDIP/QSOP)
GND
12
I
10
11
I
9
10
I
8
9
I
7
8
I
6
7
I
5
6
I
4
5
I
3
4
I
2
3
I
1
2
CLK/I
0
1
PROGRAMMABLE
AND ARRAY
(64 x 40)
8
8
8
8
8
8
8
8
MUX
Macrocell
Macrocell
Macrocell
Macrocell
Macrocell
Macrocell
Macrocell
Macrocell
MUX
13
OE/I
11
14
I
12
15
I/O
0
16
I/O
1
17
I/O
2
18
I/O
3
19
I/O
4
20
I/O
5
21
I/O
6
22
I/O
7
23
I
13
24
V
CC
Cypress Semiconductor Corporation
Document #: 38-03026 Rev. *B
3901 North First Street
San Jose
,
CA 95134
408-943-2600
Revised April 19, 2004

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Description Flash-Erasable Reprogrammable CMOS PAL㈢ Device Flash-Erasable Reprogrammable CMOS PAL㈢ Device Flash-Erasable Reprogrammable CMOS PAL㈢ Device Flash-Erasable Reprogrammable CMOS PAL㈢ Device Flash-Erasable Reprogrammable CMOS PAL㈢ Device Flash-Erasable Reprogrammable CMOS PAL㈢ Device Flash-Erasable Reprogrammable CMOS PAL㈢ Device Flash-Erasable Reprogrammable CMOS PAL㈢ Device

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