TIBPSG507AC Datasheet, PDF (2/19 Pages) Texas Instruments – 13 × 80 × 8 PROGRAMMABLE SEQUENCE GENERATOR

TIBPSG507AC
13 × 80 × 8 PROGRAMMABLE SEQUENCE GENERATOR
SRPS002D – D3029, MAY 1987 – REVISED NOVEMBER 1995
description (continued)
The eight outputs can be individually programmed for combinational operation by blowing the output multiplexer
fuse. 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 TIBPSG507AC is characterized for operation from 0°C to 75°C.
6-BIT COUNTER CONTROL FUNCTION TABLE (see Note 1)
CNT/HLD1
L
X
X
X
H
CNT/HLD0
L
X
X
H
X
SCLR1
L
X
H
L
L
SCLR0
L
H
X
L
L
OPERATION
counter active
synchronous clear
synchronous clear
hold counter
hold counter
NOTE 1: When all fuses are blown on a product line (AND), its output will be high. When all fuses
are blown on a sum line (OR), its output will be low. All product and sum terms are low
on devices with fuses intact.
S/R FUNCTION TABLE (see Note 2)
CLK POLARITY FUSE
CLK
S
R
STATE REGISTER
INTACT
INTACT
↑
L
L
Q0
↑
L
H
L
INTACT
INTACT
↑
H
L
↑
H
H
H
INDET†
BLOWN
BLOWN
↓
L
L
Q0
↓
L
H
L
BLOWN
BLOWN
↓
H
L
↓
H
H
H
INDET†
† _{Output state is indeterminate}
NOTE 2: After power up, the device must be initialized to its desired state. Q0 is the state of the
S/R register before the active clock edge.
2
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