TIBPAL22V10-20M
HIGH-PERFORMANCE IMPACT-X
TM
PROGRAMMABLE ARRAY LOGIC CIRCUITS
SRPS012A D3523, JUNE 1990 REVISED MARCH 1992
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Copyright
1992, Texas Instruments Incorporated
1
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Second-Generation PLD Architecture
High-Performance Operation:
f
max
(External Feedback) . . . 33.3 MHz
Propagation Delay . . . 20 ns Max
Increased Logic Power Up to 22 Inputs
and 10 Outputs
Increased Product Terms Average of 12
per Output
Variable Product Term Distribution
Allows More Complex Functions to Be
Implemented
Each Output Is User Programmable for
Registered or Combinational Operation,
Polarity, and Output Enable Control
Power-Up Clear on Registered Outputs
TTL-Level Preload for Improved Testability
Extra Terms Provide Logical Synchronous
Set and Asynchronous Reset Capability
Fast Programming, High Programming
Yield, and Unsurpassed Reliability Ensured
Using Ti-W Fuses
AC and DC Testing Done at the Factory
Utilizing Special Designed-In Test Features
Dependable Texas Instruments Quality and
Reliability
Package Options Include Plastic
Dual-In-Line and Chip Carrier Packages
description
The TIBPAL22V10-20M is a programmable array logic device featuring high speed and functional equivalency
when compared to presently available devices. They are implemented with the familiar sum-of-products
(AND-OR) logic structure featuring the new concept "Programmable Output Logic Macrocell". These
IMPACT-X
TM
circuits combine the latest Advanced Low-Power Schottky technology with proven titanium-
tungsten fuses to provide reliable, high-performance substitutes for conventional TTL logic.
These devices contain up to 22 inputs and 10 outputs. They incorporate the unique capability of defining and
programming the architecture of each output on an individual basis. Outputs may be registered or nonregistered
and inverting or noninverting as shown in the output logic macrocell diagram. The ten potential outputs are
enabled through the use of individual product terms.
Further advantages can be seen in the introduction of variable product term distribution. This technique
allocates from 8 to 16 logical product terms to each output for an average of 12 product terms per output. This
variable allocation of terms allows far more complex functions to be implemented than in previously available
devices.
This device is covered by U.S. Patent 4,410,987.
IMPACT-X is a trademark of Texas Instruments Incorporated.
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24
23
22
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14
13
CLK/I
I
I
I
I
I
I
I
I
I
I
GND
V
CC
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I/O/Q
I
JT PACKAGE
(TOP VIEW)
3 2 1 28 27
12 13
5
6
7
8
9
10
11
25
24
23
22
21
20
19
I/O/Q
I/O/Q
I/O/Q
NC
I/O/Q
I/O/Q
I/O/Q
I
I
I
NC
I
I
I
4
26
14 15 16 17 18
I
I
GND
NC
I
I/O/Q
I/O/Q
I
I
CLK/I
NC
I/O/Q
I/O/Q
FK PACKAGE
(TOP VIEW)
NC
No internal connection
Pin assignments in operating mode
V
CC
TIBPAL22V10-20M
HIGH-PERFORMANCE IMPACT-X
TM
PROGRAMMABLE ARRAY LOGIC CIRCUITS
SRPS012A D3523, JUNE 1990 REVISED MARCH 1992
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
2
description (continued)
Circuit design is enhanced by the addition of a synchronous set and an asynchronous reset product term. These
functions are common to all registers. When the synchronous set product term is a logic 1, the output registers
are loaded with a logic 1 on the next low-to-high clock transition. When the asynchronous reset product term
is a logic 1, the output registers are loaded with a logic 0. The output logic level after set or reset depends on
the polarity selected during programming. Output registers can be preloaded to any desired state during testing.
Preloading permits full logical verification during product testing.
With features such as programmable output logic macrocells and variable product term distribution, the
TIBPAL22V10-20M offers quick design and development of custom LSI functions with complexities of 500 to
800 equivalent gates. Since each of the ten output pins may be individually configured as inputs on either a
temporary or permanent basis, functions requiring up to 21 inputs and a single output or down to 12 inputs and
10 outputs are possible.
A power-up clear function is supplied that forces all registered outputs to a predetermined state after power is
applied to the device. Registered outputs selected as active-low power up with their outputs high. Registered
outputs selected as active-high power up with their outputs low.
A single security fuse is provided on each device to discourage unauthorized copying of fuse patterns. Once
blown, the verification circuitry is disabled and all other fuses will appear to be open.
The TIBPAL22V10-20M is characterized for operation over the full military temperature range of
55
C to 125
C.
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