TIBPAL22VP10-20C, TIBPAL22VP10-25M
HIGH-PERFORMANCE IMPACT-X
TM
PROGRAMMABLE ARRAY LOGIC CIRCUITS
SRPS013 D2943, FEBRUARY 1987 REVISED JUNE 1991
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Copyright
1991, 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.
Functionally Equivalent to the
TIBPAL22V10/10A, with Additional
Feedback Paths in the Output Logic
Macrocell
Choice of Operating Speeds:
TIBPAL22VP10-20C . . . 20 ns Max
TIBPAL22VP10-25M . . . 25 ns Max
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
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 TIBPAL22VP10' is equivalent to the
TIBPAL22V10A but offers additional flexibility in
the output structure. The improved output
macrocell uses the registered outputs as inputs
when in a high-impedance condition. This
provides two additional output configurations for a
total of six possible macrocell configurations all of
which are shown in Figure 1.
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. In addition, the data may be fed back into the array from either the register or the
I/O port. 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.
These devices are covered by U.S. Patent 4,410,987.
IMPACT-X is a trademark of Texas Instruments Incorporated.
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
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
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
NC
No internal connection
Pin assignments in operating mode
V
CC
C SUFFIX . . . NT PACKAGE
M SUFFIX . . . JT PACKAGE
(TOP VIEW)
C SUFFIX . . . FN PACKAGE
M SUFFIX . . . FK PACKAGE
(TOP VIEW)
TIBPAL22VP10-20C, TIBPAL22VP10-25M
HIGH-PERFORMANCE IMPACT-X
TM
PROGRAMMABLE ARRAY LOGIC CIRCUITS
SRPS013 D2943, FEBRUARY 1987 REVISED JUNE 1991
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
TIBPAL22VP10' 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 TIBPAL22V10-20C is characterized for operation from 0
C to 75
C. The TIBPAL22V10-25M is
characterized for operation over the full military temperature range of 55
C to 125
C.