• Multiple center power and ground pins for improved
noise immunity
• Easy memory expansion with CE\ and OE\
options
• All inputs and outputs are TTL-compatible
• Single +5V Power Supply +/- 10%
• Data Retention Functionality Testing (Contact Factory)
• Cost Efficient Plastic Packaging
• Extended Testing Over -55ºC to +125ºC for plastics
• Plastic 36 pin PSOJ is fully compatible with the
Ceramic 36 pin SOJ
• 3.3V Future Offering
36-Pin Flat Pack (F)
OPTIONS
• Timing
15ns access
17ns access
20ns access
25ns access
35ns access
45ns access
• Operating Temperature Ranges
Military (-55
o
C to +125
o
C)
Industrial (-40
o
C to +85
o
C)
• Package(s)
Ceramic LCC
Ceramic Flatpack
Plastic SOJ
Ceramic SOJ
• 2V data retention/low power
• Radiation Tolerant (EPI)
MARKING
-15
-17
-20
-25
-35
-45
GENERAL DESCRIPTION
XT
IT
The AS5C512K8 is a high speed SRAM. It offers flexibility in
high-speed memory applications, with chip enable (CE\) and output
enable (OE\) capabilities. These features can place the outputs in
High-Z for additional flexibility in system design.
Writing to these devices is accomplished when write enable (WE\)
and CE\ inputs are both LOW. Reading is accomplished when WE\
remains HIGH and CE\ and OE\ go LOW.
As a option, the device can be supplied offering a reduced power
standby mode, allowing system designers to meet low standby power
requirements. This device operates from a single +5V power supply
and all inputs and outputs are fully TTL-compatible.
The AS5C512K8DJ offers the convenience and reliability of the
AS5C512K8 SRAM and has the cost advantage of a durable plastic.
The AS5C512K8DJ is footprint compatible with 36 pin CSOJ
package of the SMD 5692-95600.
EC
F
DJ
ECJ
No. 210
No. 307
No. 903
No.503
L (Consult Factory)
E
For more products and information
please visit our web site at
www.austinsemiconductor.com
AS5C512K8
Rev. 4.5 7/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
1
SRAM
Austin Semiconductor, Inc.
FUNCTIONAL BLOCK DIAGRAM
VCC
GND
AS5C512K8
DQ8
INPUT BUFFER
ROW DECODER
I/O
CONTROLS
4,194,304-BIT
MEMORY ARRAY
1024 ROWS X
4096 COLUMNS
A0-A18
DQ1
CE\
COLUMN DECODER
OE\
WE\
*POWER
DOWN
*On the low voltage Data Retention option.
PIN FUNCTIONS
A0 - A18
Address Inputs
Write Enable
Chip Enable
Output Enable
Data Inputs/Outputs
Power
Ground
No Connection
TRUTH TABLE
MODE
OE\ CE\ WE\
STANDBY
X
H
X
READ
L
L
H
NOT SELECTED H
L
H
WRITE
X
L
L
X = Don’t Care
WE\
I/O
HIGH-Z
Q
HIGH-Z
D
POWER
STANDBY
ACTIVE
ACTIVE
ACTIVE
CE\
OE\
I/O
0
- I/O
7
V
CC
V
SS
NC
AS5C512K8
Rev. 4.5 7/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
2
SRAM
Austin Semiconductor, Inc.
ABSOLUTE MAXIMUM RATINGS*
AS5C512K8
*Stresses greater than those listed under "Absolute Maximum
Ratings" may cause permanent damage to the device. This is
Voltage on Vcc Supply Relative to Vss
Vcc ..............................................................................-.5V to +7.0V a stress rating only and functional operation of the device at
Storage Temperature (Plastic)......................-65°C to +150°C these or any other conditions above those indicated in the
Storage Temperature (Ceramic)...................-55°C to +125°C operation section of this specification is not implied. Exposure
Short Circuit Output Current (per I/O)…........................20mA to absolute maximum rating conditions for extended periods
Voltage on any Pin Relative to Vss.................-.5V to Vcc+1V may affect reliability.
Maximum Junction Temperature**..............................+150°C ** Junction temperature depends upon package type, cycle
Power Dissipation ................................................................1W time, loading, ambient temperature and airflow, and humidity.
ELECTRICAL CHARACTERISTICS AND RECOMMENDED DC OPERATING CONDITIONS
(-55
o
C < T
A
< +125
o
C & -40
o
C < T
A
< +85
o
C ; Vcc = 5V +10%)
DESCRIPTION
Power Supply
Current: Operating
CONDITIONS
WE\=CE\<V
IL
; Vcc = MAX
f = MAX = 1/t
RC
Outputs Open
"L" Version Only
CE\ > V
IH
, All other inputs < V
IL
,
Vcc = MAX, f = 0,
Outputs Open
Power Supply
Current: Standby
I
CCSP
I
CCLP
I
SBTSP
225
180
60
30
25
225
180
60
30
25
225
180
60
30
25
225
180
60
30
25
225
180
60
30
25
225
180
60
30
25
mA
mA
mA
mA
mA
3
SYM
-15
-17
-20
MAX
-25
-35
-45
UNITS NOTES
"L" Version Only I
SBTLP
CE\ > Vcc -0.2V; Vcc = MAX
V
IN
<Vss +0.2V or
V
IN
>Vcc -0.2V; f = 0
"L" Version Only I
SBCLP
I
SBCSP
10
10
10
10
10
10
mA
µ
"
µ
"
!
!
#
#
#
# $ %$&'
!
!
( ) *"
( *"
)
)
)
+,
CAPACITANCE
PARAMETER
Input Capacitance
Output Capactiance
CONDITIONS
T
A
= 25 C, f = 1MHz
V
IN
= 0
o
SYMBOL
C
I
Co
MAX
12
14
UNITS
pF
pF
NOTES
4
4
AS5C512K8
Rev. 4.5 7/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
3
SRAM
Austin Semiconductor, Inc.
AS5C512K8
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CONDITIONS
(-55
o
C < T
A
< +125
o
C or -40
o
C to +85
o
C; Vcc = 5V +10%)
!
"
# $%&
)
"%&
# $%&
)
"%&
*
*
*
*
*
*
' ('
' ('
- +
.
- +
/
!
- +
)
/
)
+
)
# $%&
+
"%&
+,
(
(
+,
0 +
(
1
*
*
' ('
AS5C512K8
Rev. 4.5 7/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
4
SRAM
Austin Semiconductor, Inc.
AC TEST CONDITIONS
Input pulse levels ...................................................... Vss to 3.0V
Input rise and fall times ......................................................... 3ns
When the volume of a material expands or shrinks due to temperature changes, it is likely that it cannot expand or shrink freely due to space limitations. At this time, a force of equal magnitude and ...
There are many electronic books and introductory books. How to choose is a big problem. There are several essential pieces of knowledge in electronic technology, which are roughly theoretical knowledg...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[Details]
Microchip's PIC18F46J50 is a low-power, high-performance 8-bit USB microcontroller (MCU) using nanoWatt XLP technology. The current in deep sleep mode can be as low as 13nA, the operating voltage i...[Details]
Two simple circuits are implemented to drive two LEDs from a battery powered microprocessor.
This design is based on a circuit that uses three resistors and a microprocessor I/O pin as an input h...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
Microcalorimetry
is used to determine energy relationships. Microcalorimetry techniques are often required when performing calorimetric experiments with small sample sizes or slow heating rat...[Details]
Aromatic gases are widely present in food, medicine, cosmetics and various daily chemical products, such as snacks, liquor, spices, Chinese herbal medicines, plasters, perfumes, soaps, shampoos, et...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Abstract: Aiming at the needs of coal-rock acoustic emission signal monitoring system, a data acquisition circuit with 24-bit resolution and 16-channel synchronous data acquisition function is desi...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
Temperature compensated quartz crystal oscillator (TCXO) is widely used as a high-precision frequency source in communication systems, radar navigation systems, precision measurement and control sy...[Details]
introduction
At present, the research on micron and nanotechnology is very active, which has led to the rapid development of microtechnology and micro-mechanical electronic system (MEMS) t...[Details]
Nowadays, more and more people have digital cameras. The convenience and speed of digital cameras have gradually replaced film cameras and become the main tool for people's daily photography. The n...[Details]
Measurement compatibility
It is very important to ensure the compatibility between the pressure sensor and its actual application. Before making a pressure sensor selection, the fo...[Details]
Introduction
my country's rapid economic growth is mainly due to the development of manufacturing and the acceleration of urbanization. However, urbanization cannot be achieved at the expense ...[Details]
LED Zone
京公网安备 11010802033920号
EEWORLD
