PALCE29M16H-25 AMD [Advanced Micro Devices], PALCE29M16H-25 Datasheet - Page 2

• Manufacturer Part Number: PALCE29M16H-25
• Description: 24-Pin EE CMOS Programmable Array Logic
• Manufacturer: AMD [Advanced Micro Devices]

GENERAL DESCRIPTION (continued)
The PALCE29M16 uses the familiar sum-of-products
(AND-OR) structure, allowing users to customize logic
functions by programming the device for specific appli-
cations. It provides up to 29 array inputs and 16 outputs.
It incorporates AMD’s unique input/output logic macro-
cell which provides flexible input/output structure and
polarity, flexible feedback selection, multiple Output En-
able choices, and a programmable clocking scheme.
The macrocells can be individually programmed as
combinatorial, registered, or latched with active-HIGH
or active-LOW polarity. The flexibility of the logic macro-
cells permits the system designer to tailor the device to
particular application requirements.
Increased logic power has been built into the
PALCE29M16 by providing a varied number of logic
product terms per output. Eight outputs have 8 product
CONNECTION DIAGRAMS
Top View
PIN DESIGNATIONS
CLK/LE
GND
I
I/CLK/LE
I/O
I/OF
NC
V
2-328
Note:
Pin 1 is marked for orientation.
CC
AMD
CLK/LE
I/OF
I/OF
I/OF
I/OF
GND
I/OE
I/O
I/O
I/O
I/O
= Clock/Latch Enable
= Ground
= Input
= Input or Clock/Latch Enable
= Input/Output
= Input/Output with Dual Feedback
= No Connection
= Supply Voltage
I
0
0
1
0
1
2
3
2
3
SKINNYDIP
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
V
I
I/OF
I/OF
I/O
I/O
I/O
I/O
I/OF
I/OF
I
I/CLK/LE
2
1
CC
08740G-2
7
6
5
4
7
6
5
4
PALCE29M16H-25
terms each, four outputs have 12 product terms each,
and the other four outputs have 16 product terms each.
This varied product-term distribution allows complex
functions to be implemented in a single PAL device.
Each output can be dynamically controlled by a com-
mon Output Enable pin or Output Enable product terms
per bank of four outputs. Each output can also be per-
manently enabled or disabled.
System operation has been enhanced by the addition of
common asynchronous-Preset and Reset product
terms
PALCE29M16 also incorporates Preload and Obser-
vability functions which permit full logic verification of
the design.
The PALCE29M16 is offered in the space-saving
300-mil SKINNYDIP package as well as the plastic
leaded chip carrier package.
I/OF 1
I/OF 2
and
I/O 0
I/O 1
I/O 2
I/O 3
NC
a
5
6
7
8
9
10
11
12 13
4
power-up
3 2
14
PLCC
15 16
1
28 27 26
Reset
17
18
25
24
23
22
21
20
19
feature.
08740G-3
I/OF 6
I/O 7
I/O 6
NC
I/O 5
I/O 4
I/OF 5
The