CY7C343 Datasheet, PDF (1/19 Pages) Cypress Semiconductor – 64-Macrocell MAX EPLD

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CY7C343
64-Macrocell MAX^® EPLD
Features
• 64 MAX^® macrocells in four LABs
• Eightdedicated inputs, 24 bidirectional I/O pins
• Programmable interconnect array
• 0.8-micron double-metal CMOS EPROM technology
• Available in 44-pin HLCC, PLCC
• Lowest power MAX device
Functional Description
The CY7C343 is a high-performance, high-density erasable
programmable logic device, available in 44-pin PLCC and
HLCC packages.
The CY7C343 contains 64 highly flexible macrocells and 128
expander product terms. These resources are divided into four
Logic Array Blocks (LABs) connected through the Program-
mable Inter-connect Array (PIA). There are eight input pins,
one that doubles as a clock pin when needed. The CY7C343
also has 28 I/O pins, each connected to a macrocell (six for
LABs A and C, and eight for LABs B and D). The remaining 36
macrocells are used for embedded logic.
The CY7C343 is excellent for a wide range of both
synchronous and asynchronous applications.
Logic Block Diagram _{9 INPUT}
11 INPUT
12 INPUT
13 INPUT
2
4
I/O PINS
5
6
7
8
LAB A
MACROCELL 1
MACROCELL 2
MACROCELL 3
MACROCELL 4
MACROCELL 5
MACROCELL 6
DEDICATED INPUTS
SYSTEM CLOCK
MACROCELLS 7–16
P
LAB B
I
15
MACROCELL 17
16
MACROCELL 18
A
17
MACROCELL 19
I/O PINS
18
19
MACROCELL 20
MACROCELL 21
20
MACROCELL 22
22
MACROCELL 23
23
MACROCELL 24
MACROCELLS 25–32
(3, 14, 25, 36)
(10, 21, 32, 43)
V_CC
GND
INPUT 35
INPUT/CLK 34
INPUT 33
INPUT 31
LAB D
MACROCELL 56
MACROCELL 55
MACROCELL 54
MACROCELL 53
MACROCELL 52
MACROCELL 51
MACROCELL 50
MACROCELL 49
MACROCELLS 57–64
LAB C
MACROCELL 38
MACROCELL 37
MACROCELL 36
MACROCELL 35
MACROCELL 34
MACROCELL 33
MACROCELLS 39–48
1
44
42
41
I/O PINS
40
39
38
37
30
29
28
I/O PINS
27
26
24
Selection Guide
Maximum Access Time
Maximum Operating Current
Maximum Standby Current
Commercial
Military
Industrial
Commercial
Military
Industrial
7C343-20
20
135
225
225
125
200
200
7C343-25
25
135
225
225
125
200
200
7C343-30
30
135
225
225
125
200
200
7C343-35 Unit
35
ns
135
mA
225
225
125
mA
200
200
Cypress Semiconductor Corporation • 3901 North First Street • San Jose, CA 95134 • 408-943-2600
Document #: 38-03015 Rev. *B
Revised April 22, 2004