The AS7C4096 and AS7C34096 are high-performance CMOS 4,194,304-bit Static Random Access Memory (SRAM) devices
organized as 524,288 words × 8 bits. They are designed for memory applications where fast data access, low power, and simple
interfacing are desired.
Equal address access and cycle times (t
AA
, t
RC
, t
WC
) of 10/12/15/20 ns with output enable access times (t
OE
) of 5/6/7/8 ns are
ideal for high-performance applications. The chip enable input CE permits easy memory expansion with multiple-bank
memory systems.
When CE is high the device enters standby mode. The AS7C4096/AS7C34096 is guaranteed not to exceed 110/72 mW power
consumption in CMOS standby mode.
A write cycle is accomplished by asserting write enable (WE) and chip enable (CE). Data on the input pins I/O1–I/O8 is
written on the rising edge of WE (write cycle 1) or CE (write cycle 2). To avoid bus contention, external devices should drive I/
O pins only after outputs have been disabled with output enable (OE) or write enable (WE).
A read cycle is accomplished by asserting output enable (OE) and chip enable (CE), with write enable (WE) high. The chip
drives I/O pins with the data word referenced by the input address. When either chip enable or output enable is inactive, or
write enable is active, output drivers stay in high-impedance mode.
All chip inputs and outputs are TTL-compatible, and operation is from either a single 5V(AS7C4096) or 3.3V(AS7C34096)
supply. Both devices are available in the JEDEC standard 400-mil 36-pin SOJ and 44-pin TSOP 2 packages.
Absolute maximum ratings
Parameter
Voltage on V
CC
relative to GND
Voltage on any pin relative to GND
Power dissipation
Storage temperature
Temperature with V
CC
applied
DC current unto output (low)
Device
AS7C4096
AS7C34096
Symbol
V
t1
V
t1
V
t2
P
D
T
stg
T
bias
I
OUT
Min
–1
–0.5
–0.5
–
–65
–55
–
Max
+7.0
+5.0
V
CC
+0.5
1.0
+150
+125
20
Unit
V
V
V
W
°C
°C
mA
NOTE: Stresses greater than those listed under
Absolute Maximum Ratings
may cause permanent damage to the device. This is a stress rating only and func-
tional operation of the device at these or any other conditions outside those indicated in the operational sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect reliability.
Truth table
CE
H
L
L
L
WE
X
H
H
L
OE
X
H
L
X
Data
High Z
High Z
D
OUT
D
IN
Mode
Standby (I
SB
, I
SB1
)
Output disable (I
CC
)
Read (I
CC
)
Write (I
CC
)
Key: X = Don’t care, L = Low, H = High
1/13/05; v.1.9
Alliance Semiconductor
P. 2 of 9
AS7C4096
AS7C34096
®
Recommended operating condition
Parameter
Supply voltage
Device
AS7C4096
AS7C34096
AS7C34096
AS7C4096
AS7C34096
Symbol
V
CC
(12/15/20)
V
CC
(10)
V
CC
(12/15/20)
V
IH
V
IH
V
IL1
T
A
T
A
Min
4.5
3.15
3.0
2.2
2.0
–0.5
0
–40
Nominal
5.0
3.30
3.3
–
–
–
–
–
Max
5.5
3.6
3.6
V
CC
+ 0.5
V
CC
+ 0.5
0.8
70
85
Unit
V
V
V
V
V
V
°C
°C
Input voltage
Ambient operating
temperature
commercial
industrial
1 V
IL
min = –1.0V for pulse width less than 5ns.
DC operating characteristics (over the operating range)
[color=#222222][backcolor=rgb(238, 238, 238)][font=sans-serif]I am a beginner in microcontrollers. I have a basic understanding of 51, PIC, and MSP430, and have written several programs. I have learne...
I used IAR to compile ZStack-CC2530 and got Error[e117]: Incompatible runtime models. Module APS specifies that '__code_model' must be 'banked', but module AF has the value 'near'. What should I do?...
I. Brief description of frequency characteristics (1) Since there is a reactive element C in the amplifier circuit , it presents different impedances for different frequencies, so the amplifier circu...
I use AD8551 transconductance method to amplify the output current (IV) of photodiode. The result of using multimeter to detect the output of AD8551 is very stable. However, when using MAX1304 for AD ...
Emergency hand-held lamps powered by 6V maintenance-free batteries are widely used in rural areas. The charger used is a transformer step-down and single diode half-wave rectifier, and the charging...[Details]
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]
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[Details]
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The way to reduce costs is
① Use the Bluetooth data transmission function of mobile ph...[Details]
I. Introduction
Since RS232 has a short communication distance (only 15 meters according to EAT/TAI-232 standard), and can only perform point-to-point communication, it cannot directly f...[Details]
1 Introduction
Building Automation System (BAS) is a distributed monitoring system (DCS) designed according to distributed information and control theory. It is the result of the mutual de...[Details]
1 Introduction
With the development of control, computer, communication, network technology, etc., a new control technology, namely fieldbus, has emerged in the field of industrial control...[Details]
1. Introduction to CIF Board
Fieldbus integration based on PC system
Whether it is a master or a slave, fieldbus has won unanimous praise in the field of PC-based automation. For more...[Details]
On the afternoon of July 10, Beijing time, Taiwan's largest chip designer MediaTek expects its smartphone chip shipments to grow by double digits in the third quarter of this year, and the company is ...[Details]
PV inverter manufacturer SMA has launched its first DC arc fault circuit interrupter (AFCI) PV inverter and has received UL certification.
The new SunnyBoy AFCI inverter models include 3000-US...[Details]
Digital array radar (DAR) uses digital beam forming (DBF) in both receiving and transmitting modes to achieve flexible distribution and reception of RF signal power in the airspace, obtain excellent t...[Details]
TC9012F is a universal CMOS large-scale integrated circuit for infrared remote control signal transmission, suitable for remote control of TV, VTR, laser player and other equipment. In the market, ...[Details]
Investment in
the
medical device
industry has been on the rise in recent years. In the past two years, venture capital for medical devices has almost doubled, reaching $4 billion in 2007. Fr...[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]
Spatial Division Multiplexing (SDM) MIMO processing can significantly improve spectrum efficiency and thus greatly increase the capacity of wireless communication systems. Spatial Division Multip...[Details]
MCU
京公网安备 11010802033920号
EEWORLD
