Tandy 1000
inter
ABSOLUTE MAXIMUM RATINGS·
8272A
Technical Reference Manual
Operating Temperature
Storage Temperature
All
Output
Voltages
All
Input
Voltages
Supply
Voltage
Vee
Power
Dissipation.
O°C
to +
70°C
-40·Cto
+125·C
·-0.5
to
+ 7
Volts
....
-0.5
to
+ 7
Volts
..
- 0.5
to
+ 7
Volts
.1Watt
NOTICE: Stress above
those
listed
under
"Absolute
Max-
imum
Ratings"
may
cause
permanent
damage
to the de-
vice. This is
a
stress
rating
only
and
functional
operation
of
the device
at
these
or
any
other
conditions
above
those
indicated
in the
operational
sections
of
this
specification
is
not
implied.
Exposure
to
absolute
maximum
rating
conditions
for
extended
periods
may
affect
device
reliability
D.C. CHARACTERISTICS
(T
A
=
O'C
to
+
70'C,
Vee
= + 5V ±
10%)
Symbol
Parameter
Limits
Min. Max.
Unit
Test
Conditions
VOL
--------
V
OH
-_
..
_----
lee
-
"~'------'--
f---------+--------+------+-------..j
Input
Low
Voltage
- 0.5 0.8 V
.------.------f-------f--------+-------+-------.--<
Input
High
Voltage
2.0 V
ee
+ 0.5 V
-.---.------
f-------f------~---__4_-------_____J
OlJ.!.P~~\,O,"'()~ge
__
I--- f----._0._4_5.
__
-I---
__
V
__
---+_I::...OL=-=_2._0_m_A
__
--1
Output
High
Voltage
2.4
Vee V
10H
= - 400
I-'A
----------f--------f-----------+-------+--------l
Vee
Supply
Current
120 rnA
------------~
Input
Load
Current
10
I-'A
(All
Input
Pins) -
10
I-'A
IOFL
High
Level
Output
10
I-'A
Leakage
Current
-_._-------------
------
Output
Float-10
I-'A
Leakage
Current
VOUT=
Vee
0.45V
VOUT
Vee
CAPACITANCE
(T
A
~
25'C,
Ie
1 MHz, Vee
.-
OV)
Limits
Test
Symbol
Parameter
Min. Max.
Unit
Conditions
C
IN1
",)
Clock
Input
Capacitance
20
pF
All Pins
Except
CIN
Input
Capacitance
10
pF
Pin Under Test
Tied
to
AC
CliO
Input/Output
Capacitance
20
pF
Ground
-----
A.C.
CHARACTERISTICS
(TAO'C
to
+
70'C,
V
ee
=
+5.0V
:!:
10%)
cLoeK
TIMING
Symbol
leH
IRST
READ
CYCLE
IRD
IDF
Parameter
ClOCk
Period
ClOCk
High
Period
Reser
Width
Select
Setup
to
RDj
Select
Hold
from
RL)f
AD
Pulse
Width
Data Delay
from
RD.
Output
Float
Delay
6-236
Min
120
40
14
250
20
Max,
500
200
100
Unit
ley
Notes
Note
5
Note
4,
5
AFN·01259C
To Next Page
Loading...
Need help?
General
