Intel MCS48 User Manual page 233

intel
8185V8185-2**
1024
x 8-BIT
STATIC
RAM
FOR
MCS-85
"Compatible with
8085A
"Compatible
with
8085A-2
Multiplexed
Address and Data
Bus
Directly
Compatible
with
8085A
Microprocessor
Low
Operating
Power
Dissipation
Low
Standby
Power
Dissipation
Single
+5V
Supply
High Density 18-Pin
Package
The
Intel®
8185
is
an 8192-bit
static
random
access
memory (RAM)
organized as 1024
words
by
8-bits
using N-channel
Silicon-Gate
MOS
technology.
The
multiplexed
address
and
data
bus allows the
8185 to interface directly to
the
8085A
microprocessor
to
provide
a
maximum
level of
system
integration
The low standby
power
dissipation
minimizes system
power requirements
when
the 8185
is
disabled.
The 8185-2
is
a
high-speed
selected version
of
the 8185.
PIN
CONFIGURATION
BLOCK DIAGRAM
ADoC
AD,r:
ad
2 [:
AD
3
C
AD
4
£
ADsC
AD
6 [I
AD
7
[
8 11
VssC
9
D
v
cc
3 RD
3 WR
3
ALE
J cs
D
CE
2
PIN
NAMES
AD
-AD
7
ADDRESS/DATA LINES
A
8
.
A
9
ADDRESS
LINES
CS
CHIP SELECT
CE
1
CHIP
ENABLE
IIO/M)
CE
2
CHIP
ENABLE
ALE
ADDRESS LATCH ENABLE
RD READ ENABLE
WR WRITE ENABLE
AD
-AD
7
A
y
DATA
BUS
BUFFER
RAM
MEMORY
ARRAY
X
-Y
DECODE
V
INTEL 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.
O
INTEL
CORPORATION, 1979
6-81