PAL16L8D Datasheet PDF - Advanced Micro Devices
| Part Number | PAL16L8D | |
| Description | 20-Pin TTL Programmable Array Logic | |
| Manufacturers | Advanced Micro Devices | |
| Logo |  |
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FINAL
COM’L: -4/5/7/B/B-2/A, D/2
PAL16R8 Family
20-Pin TTL Programmable Array Logic
Advanced
Micro
Devices
DISTINCTIVE CHARACTERISTICS
s As fast as 4.5 ns maximum propagation delay
s Popular 20-pin architectures: 16L8, 16R8, 16R6,
16R4
s Programmable replacement for high-speed TTL
logic
s Register preload for testability
s Power-up reset for initialization
s Extensive third-party software and programmer
support through FusionPLD partners
s 20-Pin DIP and PLCC packages save space
s 28-Pin PLCC-4 package provides ultra-clean
high-speed signals
GENERAL DESCRIPTION
The PAL16R8 Family (PAL16L8, PAL16R8, PAL16R6,
PAL16R4) includes the PAL16R8-5/4 Series which pro-
vides the highest speed in the 20-pin TTL PAL device
family, making the series ideal for high-performance ap-
plications. The PAL16R8 Family is provided with stan-
dard 20-pin DIP and PLCC pinouts and a 28-pin PLCC
pinout. The 28-pin PLCC pinout contains seven extra
ground pins interleaved between the outputs to reduce
noise and increase speed.
The devices provide user-programmable logic for re-
placing conventional SSI/MSI gates and flip-flops at a
reduced chip count.
The family allows the systems engineer to implement
the design on-chip, by opening fuse links to configure
AND and OR gates within the device, according to the
desired logic function. Complex interconnections be-
tween gates, which previously required time-consuming
layout, are lifted from the PC board and placed on sili-
con, where they can be easily modified during proto-
typing or production.
The PAL device implements the familiar Boolean logic
transfer function, the sum of products. The PAL device
is a programmable AND array driving a fixed OR array.
The AND array is programmed to create custom product
terms, while the OR array sums selected terms at the
outputs.
In addition, the PAL device provides the following
options:
— Variable input/output pin ratio
— Programmable three-state outputs
— Registers with feedback
Product terms with all connections opened assume the
logical HIGH state; product terms connected to both true
and complement of any single input assume the logical
LOW state. Registers consist of D-type flip-flops that are
loaded on the LOW-to-HIGH transition of the clock. Un-
used input pins should be tied to VCC or GND.
The entire PAL device family is supported by the
FusionPLD partners. The PAL family is programmed on
conventional PAL device programmers with appropriate
personality and socket adapter modules. Once the PAL
device is programmed and verified, an additional con-
nection may be opened to prevent pattern readout. This
feature secures proprietary circuits.
PRODUCT SELECTOR GUIDE
Device
PAL16L8
PAL16R8
PAL16R6
PAL16R4
Dedicated
Inputs
10
8
8
8
Outputs
6 comb.
2 comb.
8 reg.
6 reg.
2 comb.
4 reg.
4 comb.
Publication# 16492 Rev. D Amendment /0
Issue Date: February 1996
Product Terms/
Output
7
7
8
8
7
8
7
Feedback
I/O
–
reg.
reg.
I/O
reg.
I/O
Enable
prog.
prog.
pin
pin
prog.
pin
prog.
2-3
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ORDERING INFORMATION
Commercial Products
AMD
AMD programmable logic products for commercial applications are available with several ordering options. The order number
(Valid Combination) is formed by a combination of:
PAL 16 R 8 -5
PC
FAMILY TYPE
PAL = Programmable Array Logic
NUMBER OF
ARRAY INPUTS
OUTPUT TYPE
R = Registered
L = Active-Low Combinatorial
NUMBER OF OUTPUTS
SPEED
-4 = 4.5 ns tPD
-5 = 5 ns tPD
-7 = 7.5 ns tPD
D = 10 ns tPD
VERSION
Blank = First Revision
/2 = Second Revision
OPTIONAL PROCESSING
Blank = Standard Processing
OPERATING CONDITIONS
C = Commercial (0°C to +75°C)
PACKAGE TYPE
P = 20-Pin Plastic DIP (PD 020)
J = 20-Pin Plastic Leaded Chip
Carrier (PL 020)
28-Pin Plastic Leaded Chip
Carrier for -4 (PL 028)
D = 20-Pin Ceramic DIP (CD 020)
Valid Combinations
PAL16L8
PAL16R8
PAL16R6
-5PC, -5JC, -4JC
PAL16R4
PAL16L8-7
PAL16R8-7
PAL16R6-7
PC, JC, DC
PAL16R4-7
PAL16L8D/2
PAL16R8D/2
PAL16R6D/2
PC, JC
PAL16R4D/2
Valid Combinations
Valid Combinations lists configurations planned
to be supported in volume for this device. Consult
the local AMD sales office to confirm availability of
specific valid combinations and to check on newly
released combinations.
DataSheet4 U .com
PAL16R8-4/5/7, D/2 (Com’l)
2-7
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for PAL16L8D electronic component. |
| Information | Total 30 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ PAL16L8D.PDF Datasheet ] | |
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