TIBPLS506AC Datasheet, PDF (1/16 Pages) Texas Instruments – 13 × 97 × 8 FIELD-PROGRAMMABLE LOGIC SEQUENCER

TIBPLS506AC
13 × 97 × 8 FIELD-PROGRAMMABLE LOGIC SEQUENCER
• 58-MHz Max Clock Rate
• Two Transition Complement Array Terms
• 16-Bit Internal State Registers
• 8-Bit Output Registers
• Outputs Programmable for Registered or
Combinational Operation
• Ideal for Waveform Generation and
High-Performance State Machine
Applications
• Programmable Output Enable
• Programmable Clock Polarity
SRPS003C – D3090, DECEMBER 1987 – REVISED NOVEMBER 1995
JT OR NT PACKAGE
(TOP VIEW)
CLK ₁
I0 ₂
I1 ₃
I2 ₄
I3 ₅
I4 ₆
I5 7
Q0 8
Q1 9
Q2 10
Q3 11
GND 12
24 ^V_CC
23 ^I6
22 ^I7
21 ^I8
20 ^I9
19 ^I10
18 I11
17 I12/OE
16 Q7
15 Q6
14 Q5
13 Q4
description
The TIBPLS506AC is a TTL field-programmable
state machine of the Mealy type. This state
machine (logic sequencer) contains 97 product
terms (AND terms) and 48 sum terms (OR terms).
The product and sum terms are used to control the
16-bit internal state registers and the 8-bit output
registers.
The outputs of the internal state registers
(P0– P15) are fed back and combined with the 13
inputs (I0 – I12) to form the AND array. In addition,
two sum terms are complemented and fed back to
the AND array, which allows any product term to
be summed, complemented, and used as input to
the AND array.
The eight output cells can be individually
programmed for registered or combinational
operation. Nonregistered operation is selected by
blowing the output multiplexer fuse. Registered
output operation is selected by leaving the output
multiplexer fuse intact.
FK OR FN PACKAGE
(TOP VIEW)
4 3 2 1 28 27 26
I2 ⁵
25 I8
I3 ⁶
24 I9
I4 ⁷
23 I10
NC ⁸
22 NC
I5 ⁹
21 I11
Q0 ¹⁰
20 I12/OE
Q1 ¹¹
19 Q7
12 13 14 15 16 17 18
NC – No internal connection
Pin 17 can be programmed to function as an input and/or an output enable. Blowing the output enable fuse lets
pin 17 function as an output enable but does not disconnect pin 17 from the input array. When the output enable
fuse is intact, pin 17 functions only as an input with the outputs being permanently enabled.
The state and output registers are synchronously clocked by the fuse programmable clock input. The clock
polarity fuse selects either postive- or negative-edge triggering. Negative-edge triggering is selected by blowing
the clock polarity fuse. Leaving this fuse intact selects positive-edge triggering. After power-up, the device must
be initialized to the desired state. When the output multiplexer fuse is left intact, registered operation is selected.
The TIBPLS506AC is characterized for operation from 0°C to 75°C.
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.
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Copyright © 1995, Texas Instruments Incorporated
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