http://www.www.datasheet4u.com

900,000+ Datasheet PDF Search and Download

Datasheet4U offers most rated semiconductors datasheets pdf




Cypress Semiconductor Electronic Components Datasheet

CG5982AF Datasheet

2K x 8 Automotive Dual-port Static RAM

No Preview Available !

CG5982AF pdf
CG5982AF 2K x 8 Automotive Dual-port Static RAM
www.DataSheet4U.com
CG5982AF
2K x 8 Automotive Dual-port Static RAM
Features
• True dual-ported memory cells that allow simultaneous
reads of the same memory location
• Automotive temperature operation: –40°C to +115°C
• 2K x 8 organization
• High-speed access: 55 ns
• Low operating power: ICC = 120 mA (max.)
• Fully asynchronous operation
• Automatic power-down
• Master CG5982AF easily expands data bus width to 16
or more bits using slave
• BUSY output flag
• INT flag for port-to-port communication
Functional Description
The CG5982AF are high-speed CMOS 2K x 8 dual-port static
RAMs. Two ports are provided to permit independent access
to any location in memory. The CG5982AF can be utilized as
either a standalone 8-bit dual-port static RAM or as a MASTER
dual-port RAM in conjunction with the CG5982AF SLAVE
dual-port device in systems requiring 16-bit or greater word
widths. It is the solution to applications requiring shared or
buffered data such as cache memory for DSP, bit-slice, or
multiprocessor designs.
Each port has independent control pins; chip enable (CE),
write enable (R/W), and output enable (OE). BUSY flags are
provided on each port. In addition, an interrupt flag (INT) is
provided on each port of the 52-pin PLCC version. BUSY
signals that the port is trying to access the same location
currently being accessed by the other port. On the PLCC
version, INT is an interrupt flag indicating that data has been
placed in a unique location (7FF for the left port and 7FE for
the right port).
An automatic power-down feature is controlled independently
on each port by the chip enable (CE) pins.
The CG5982AF is available in a 52-pin PLCC package.
Logic Block Diagram
R/WL
CEL
OEL
R/WR
CER
OER
I/O7L
I/O0L
•••
BUSYL[1]
A0L
A10L •••
I/O
Control
I/O
Control
Address
Decoder
Memory
Array
Address
Decoder
•••
I/O7R
I/O0R
[1]
BUSYR
••• A10R
A0R
[2]
INTL
CEL
OEL
R/WL
Arbitration Logic
and
Interrupt Logic
CER
OER
R/WR
[2]
INTR
Notes:
1. CG5982AF (Master): BUSY is open-drain output and requires pull-up resistor.
2. Open drain outputs; pull-up resistor required.
Cypress Semiconductor Corporation • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600
Document #: 38-06067 Rev. *C
Revised September 6, 2005
[+] Feedback


Cypress Semiconductor Electronic Components Datasheet

CG5982AF Datasheet

2K x 8 Automotive Dual-port Static RAM

No Preview Available !

CG5982AF pdf
Pin Configurations
PLCC
Top View
CG5982AF
A1L
A2L
A3L
A4L
A5L
A6L
A7L
A8L
A9L
I/O0L
I/O1L
I/O2L
I/O3L
7 6 5 4 3 2 1 52 51 50 49 48 47
8 46
9 45
10 44
11 43
12 42
13 41
14 40
15
CG5982AF
39
16 38
17 37
18 36
19 35
20 34
2122 23 24 25 26 27 28 29 30 31 32 33
OER
A0R
A1R
A2R
A3R
A4R
A5R
A6R
A7R
A8R
A9R
NC
I/O7R
Selection Guide
Maximum Access Time
Maximum Operating Current
Maximum Standby Current
CG5982AF
55
120
45
Unit
ns
mA
mA
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Storage Temperature ................................. –65°C to +150°C
Ambient Temperature with
Power Applied............................................. –55°C to +125°C
Supply Voltage to Ground Potential
(Pin 48 to Pin 24) ........................................... –0.5V to +7.0V
DC Voltage Applied to Outputs
in High-Z State ............................................... –0.5V to +7.0V
DC Input Voltage ............................................–3.5V to +7.0V
Output Current into Outputs (LOW)............................. 20 mA
Static Discharge Voltage.......................................... > 2001V
(per MIL-STD-883, Method 3015)
Latch-up Current.................................................... > 200 mA
Operating Range
Range
Automotive[3]
Ambient
Temperature
–40°C to +115°C
VCC
5V ± 10%
Electrical Characteristics Over the Operating Range[4]
Parameter
Description
Test Conditions
VOH Output HIGH Voltage
VCC = Min., IOH = –4.0 mA
VOL Output LOW Voltage
IOL = 4.0 mA
IOL = 16.0 mA[5]
VIH Input HIGH Voltage
VIL Input LOW Voltage
IIX Input Load Current
GND < VI < VCC
IOZ
Output Leakage Current
GND < VO < VCC, Output Disabled
IOS Output Short–Circuit Current[6] VCC = Max., VOUT = GND
Note:
3. TA is the “instant on” case temperature.
4. See the last page of this specification for Group A subgroup testing information.
5. BUSY and INT pins only.
6. Duration of the short circuit should not exceed 30 seconds.
CG5982AF
Min. Max.
2.4
0.4
0.5
2.2
0.8
–5 +5
–5 +5
–350
Unit
V
V
V
V
µA
µA
mA
Document #: 38-06067 Rev. *C
Page 2 of 12
[+] Feedback


Part Number CG5982AF
Description 2K x 8 Automotive Dual-port Static RAM
Maker Cypress Semiconductor
Total Page 12 Pages
PDF Download
CG5982AF pdf
Download PDF File
CG5982AF pdf
View for Mobile






Related Datasheet

1 CG5982AF 2K x 8 Automotive Dual-port Static RAM Cypress Semiconductor
Cypress Semiconductor
CG5982AF pdf




Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z

site map

webmaste! click here

contact us

Buy Components