TIB82S167BC Datasheet, PDF (1/11 Pages) Texas Instruments – 14 × 48 × 6 FIELD-PROGRAMMABLE LOGIC SEQUENCER WITH 3-STATE OUTPUTS OR PRESET

TIB82S167BC
14 × 48 × 6 FIELD-PROGRAMMABLE LOGIC SEQUENCER
WITH 3-STATE OUTPUTS OR PRESET
SRPS026A – D2896, JANUARY 1985 – REVISED NOVEMBER 1995
• Programmable Asynchronous Preset or
Output Control
• Power-On Preset of All Flip-Flops
• 8-Bit Internal State Register With 4-Bit
Output Register
• Power Dissipation . . . 600 mW Typical
• Functionally Equivalent to, but Faster Than
82S167A^†
description
The TIB82S167BC is a TTL field-programmable
state machine of the Mealy type. This state
machine (logic sequencer) contains 48 product
terms (AND terms) and 12 pairs of sum terms (OR
terms). The product and sum terms are used to
control the 8-bit internal state register and the 4-bit
output register.
NT PACKAGE
(TOP VIEW)
CLK ₁
I6 ₂
I5 ₃
I4 ₄
I3 ₅
I2 ₆
I1 7
I0 8
Q0 9
Q1 10
Q2 11
GND 12
24 ^V_CC
23 ^I7
22 ^I8
21 ^I9
20 ^I10
19 ^I11
18 I12
17 I13
16 PRE/OE
15 P1
14 P0
13 Q3
FN PACKAGE
(TOP VIEW)
The outputs of the internal state register (P0 – P7)
are fed back and combined with the 14 inputs
(I0 – I13) to form the AND array. In addition the first
two bits of the internal state register (P0 – P1) are
brought off-chip to allow the output register to be
extended to 6 bits if desired. A single sum term is
complemented and fed back to the AND array,
which allows any of the product terms to be
summed, complemented, and used as inputs to
the AND array.
4 3 2 1 28 27 26
I4 ⁵
25 I9
I3 ⁶
24 I11
I2 ⁷
23 I11
NC ⁸
22 NC
I1 ⁹
21 I12
I0 ¹⁰
20 I13
Q0 ¹¹
19 PRE/OE
12 13 14 15 16 17 18
The state and output registers are positive-edge-
triggered S/R flip-flops. These registers are
unconditionally preset high during power up.
PRE/OE can be used as PRE to preset both
registers or, by blowing the proper fuse, be
converted to an output control function, OE.
NC – No internal connection
The TIB82S167BC is characterized for operation
from 0°C to 75°C.
† Power-up preset and asynchronous preset functions are not identical to 82S167A.
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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