Intel MCS48 User Manual page 283

iny
8216/8226
4-BIT
PARALLEL
BIDIRECTIONAL
BUS
DRIVER
Data
Bus
Buffer
Driver for
8080
CPU
Low
Input
Load
Current
—
0.25
mA
Maximum
High Output
Drive Capability
for
Driving
System Bus
3.65V
Output High
Voltage
for
Direct
Interface to
8080
CPU
3-State
Outputs
Reduces System Package Count
The
8216/8226
is
a
4-bit
bidirectional
bus
driver/receiver. All
inputs are
low
power TTL
compatible. For
driving
MOS,
the
DO
outputs provide a high 3.65V
V 0H
,
and
for
high capacitance terminated bus
structures, the
DB
outputs provide a
high
50
mA
I l
capability.
A
non-inverting (8216)
and
an
inverting (8226)
are available
to
meet
a
wide
variety of applica-
tions
for buffering
in
microcomputer
systems.
•Note:
The
specifications
for
the 3216/3226 are
identical with
those
for
the 8216/8226.
INN
CONFIGURATION
LOGIC
DIAGRAM
8216
LOGIC
DIAGRAM
8226
PIN
NAMES
OB
DBj
DATA
BUS
BIDIRECTIONAL
°W°h
DATA
INPUT
0O„DOj DATA
OUTPUT
DIEN
DATA
IN
ENABLE
DIRECTION
CONTROL
a
CHIP
SELECT
Dl
3
o-
-£
*=
£=-
=*
£=
ft_6
-O
DB
D'oO-
Dl,
O-
Dlj
o-
DOjO-
=*
&
^
^='
^
^
^
'=^
IT
II
-O DB„
-O DB
3
™TEL CORPORATION ASSUMES
NO
RESPONSIBILITY FOR THE USE Of ANY
CIRCUITRY OTHER THAN
CIRCUITRY EMBODIED
IN
AN
INTEL
PRODUCT. NO
OTHER
CIRCUIT
PATENT
LICENSES ARE
IMPLIED.
7-45