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Schottky Bipolar
8216/8226
4 BIT PARALLEL BIDIRECTIONAL BUS DRIVER
• Data Bus Buffer Driver
for
8080
CPU
• Low Input Load Current - .25 mA
Maximum
• High Output Drive Capability for
Driving System Data Bus
• 3.65V Output High Voltage
for
Direct
Interface
to
8080 CPU
• Three State Outputs
• Reduces System Package Count
The 8216/8226
is
a
4-bit
bi-directional bus driver/receiver.
All
inputs
are
low power
TTL
compatible.
For
driving MOS, the DO outputs provide a high 3.65V VOH,
and
for
high capaci-
tance terminated bus structures, the DB outputs provide ahigh
50mA
IOl
capability.
A non-inverting (8216)
and
an
inverting (8226)
are
available
to
meet a wide variety
of
applications
for
buffering in micro-
computer systems.
PIN CONFIGURATION
cs
16
Vee
0°0
2
15
OlEN
01
0
OB
o
3
14
0°3
0°0
01
0
4
8216/ 13
OB
3
DO,
5
8226
12
01
3
01,
DB,
6
11
0°2
DO,
01,
7
10
OB
2
GND
8
9
O~
01
2
0°2
PIN NAMES
01
3
OB
O
·OB
3
DATA
BUS
BI-OIRECTIONAL
0'o.0~
DATA
INPUT
00
0
.0°3
DATA
OUTPUT
OlEN
DATA
IN ENABLE
DIRECTION CONTROL
cs CHIP SELECT
LOGIC
DIAGRAM
8216
01
0
OB
o
0°0
01, ,
DB,
DO,
01
2
OB
2
0°2
01
3
OB
3
0°3
------+-
......
----n
cs
LOGIC
DIAGRAM
8226
_----oOB
O
_----0
DB,
------+
.......
----0
cs
OlEN
o---_e_------J
5-163
OlEN
0---
.......
------1