NTE6885 thru NTE6888
Integrated Circuit
Hex 3–State Buffer/Inverter
Description:
The NTE6885 thru NTE6888 series of devices combines three features usually found desirable in
bus–oriented systems: 1) High impedance logic inputs insure that these devices do not seriously load
the bus; 2) Three–state logic configuration allows buffers not being utilized to be effectively removed
from the bus; 3) Schottky technology allows high–speed operation.
While the NTE6885 to NTE6888 are all buffers, the devices differ in that the NTE6885 (non–inverting)
and the NTE6886 (inverting) provide a two–input Enable which controls all six buffers, while the
NTE6887 (non–inverting) and the NTE6888 (inverting) provide two Enable inputs; one controlling
four buffers and the other controlling the remaining two buffers.
These units are well–suited for Address buffers on the M6800 or similar microprocessor application.
Features:
D High Speed: 8.0ns (Typ)
D Three–State Logic Configuration
D Single +5V Power Supply Requirement
D Compatible with 74LS Logic or 6800 Microprocessor Systems
D High Impedance PNP Inputs Assure Minimal Loading of the Bus
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified for ALL devices)
Power Supply Voltage, VCO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.0V
Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5V
Operating Ambient Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C
Electrical Characteristics: (0°C ≤ TA ≤ 75°C and 4.75V ≤ VCC ≤ 5.25V unless otherwise specified
for ALL devices)
Parameter
Symbol
Test Conditions
= 4.75V, T = +25°C
Min Typ Max Unit
Input Voltage – High Logic State
Input Voltage – Low Logic State
Input Current – High Logic State
Input Current – Low Logic State
Input Current – High Impedance State
V
IH
V
CC
V
CC
V
CC
V
CC
V
CC
2.0
–
–
–
–
–
–
–
V
V
A
V
IL
= 4.75V, T = +25°C
0.8
40
A
I
IH
= 5.25V, V = 2.4V
–
µA
IH
I
IL
= 5.25V, V = 0.5V, V = 0.5V
IL(E)
–
–400 µA
–40 µA
IL
I
= 5.25V, V
= 0.5V, V = 2V
IH(E)
–
IH(E)
IL(I)