Philips Semiconductors Programmable Logic Devices
Product specification
PAL devices
16L8, 16R8, 16R6, 16R4
PLUS16R8D/-7 SERIES
FEATURES
•
Ultra high-speed
–
t
PD
= 7.5ns and f
MAX
= 74MHz for the
PLUS16R8-7 Series
–
t
PD
= 10ns and f
MAX
= 60 MHz for the
PLUS16R8D Series
DESCRIPTION
The Philips Semiconductors PLUS16XX
family consists of ultra high-speed 7.5ns and
10ns versions of Series 20 PAL devices.
The PLUS16XX family is 100% functional
and pin-compatible with the 16L8, 16R8,
16R6, and 16R4 Series devices.
The sum of products (AND-OR) architecture
is comprised of 64 programmable AND gates
and 8 fixed OR gates. Multiple bidirectional
pins provide variable input/output pin ratios.
Individual 3-State control of all outputs and
registers with feedback (R8, R6, R4) is also
provided. Proprietary designs can be
protected by programming the security fuse.
The PLUS16R8, R6, and R4 have D-type
flip-flops which are loaded on the
Low-to-High transition of the clock input.
In order to facilitate state machine design and
testing, a power-up reset function has been
incorporated into these devices to reset all
internal registers to Active-Low after a
specific period of time.
The Philips Semiconductors State-of-the-Art
oxide isolation Bipolar fabrication process is
employed to achieve high-performance
operation.
The PLUS16XX family of devices are field
programmable, enabling the user to quickly
generate custom patterns using standard
programming equipment. See the
programmer chart for qualified programmers.
The SNAP software package from Philips
Semiconductors supports easy design entry
for the PLUS16XX series as well as other
PLD devices from Philips Semiconductors.
The PLUS16XX series are also supported by
other standard CAD tools for PAL-type
devices.
Order codes are listed in the Ordering
Information table.
•
100% functionally and pin-for-pin
compatible with industry standard 20-pin
PAL
®
ICs
•
Power-up reset function to enhance state
machine design and testability
•
Design support provided via SNAP and
other CAD tools for Series 20 PAL devices
•
Field-programmable on industry standard
programmers
•
Security fuse
•
Individual 3-State control of all outputs
DEVICE NUMBER
PLUS16L8
PLUS16R8
PLUS16R6
PLUS16R4
DEDICATED
INPUTS
10
8
8
8
COMBINATORIAL
OUTPUTS
8 (6 I/O)
0
2 I/O
4 I/O
REGISTERED
OUTPUTS
0
8
6
4
ORDERING INFORMATION
DESCRIPTION
ORDER CODE
PLUS16R8DN
PLUS16R6DN
PLUS16R4DN
PLUS16L8DN
PLUS16R8–7N
PLUS16R6–7N
PLUS16R4–7N
PLUS16L8–7N
PLUS16R8DA
PLUS16R6DA
PLUS16R4DA
PLUS16L8DA
PLUS16R8–7A
PLUS16R6–7A
PLUS16R4–7A
PLUS16L8–7A
DRAWING NUMBER
20-Pin Plastic Dual-In-Line
300mil-wide
0408B
20-Pin Plastic Leaded Chip Carrier (PLCC)
0400E
NOTE:
The PLUS16XX series of devices are also processed to military requirements for operation over
the military temperature range. For specifications and ordering information, consult the Philips
Semiconductors Military Data Book.
®
PAL is a registered trademark of Advanced Micro Devices, Inc.
September 10, 1993
36
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