|
|
PDF WS256K32-XXX Data sheet ( Hoja de datos )
| Número de pieza | WS256K32-XXX | |
| Descripción | 256Kx32 SRAM MODULE | |
| Fabricantes | White Electronic Designs | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de WS256K32-XXX (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
|
No Preview Available !
256Kx32 SRAM MODULE PRELIMINARY*
FEATURES
s Access Times 20, 25, 35ns
s MIL-STD-883 Compliant Devices Available
s Packaging
• 66 pin, PGA Type, 1.185 inch square, Hermetic
Ceramic HIP (Package 401)
• 68 lead, 40mm, Hermetic CQFP (Package 501)
s Organized as 256Kx32, User Configurable as 512Kx16
s Upgradable to 512Kx32 for future expansion
s Data I/O Compatible with 3.3V devices
WS256K32-XXX
HI-RELIABILITY PRODUCT
www.DataSheet4U.com
s 2V Data Retention devices available
(WS256K32L-XXX low power version only)
s Commercial, Industrial and Military Temperature Range
s 5 Volt Power Supply
s Low Power CMOS
s TTL Compatible Inputs and Outputs
s Weight
WS256K32N-XHX - 13 grams typical
WS256K32-XG4X - 20 grams typical
* This data sheet describes a product under development, not fully
characterized, and is subject to change without notice.
FIG. 1 PIN CONFIGURATION FOR WS256K32N-XHX
TOP VIEW
1 12 23
34 45 56
I/O8 NC
I/O15
I/O24
VCC
I/O31
I/O9 NC
I/O14
I/O25
NC I/O30
I/O10
A13
GND
I/O11
I/O13
I/O12
I/O26
A6
NC
I/O27
I/O29
I/O28
BLOCK DIAGRAM
A14 A10
OE
A15 A11
NC
A16 A12
WE1
A17 VCC I/O7
A7 A3
A0
NC A4
A1
A8 A5
A2
A9 WE2 I/O23
OE
A0-17
W E1C S 1
256K x 16
W E2 C S2
256K x 16
I/O0 CS1 I/O6
I/O1 NC
I/O5
I/O16
I/O17
CS2
GND
I/O22
I/O21
16 16
I/O2 I/O3
I/O4
11 22
33
I/O18
I/O19
I/O20
44 55 66
I/O0-15
I/O16-31
PIN DESCRIPTION
I/O0-31 Data Inputs/Outputs
A0-17
Address Inputs
WE1-2
Write Enables
CS1-2
Chip Selects
OE Output Enable
VCC Power Supply
GND
Ground
NC Not Connected
October 2000 Rev. 2
1 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
1 page  
FIG. 4
TIMING WAVEFORM - READ CYCLE
ADDRESS
DATA I/O
tRC
tAA
tOH
PREVIOUS DATA VALID
DATA VALID
READ CYCLE 1 (CS = OE = VIL, WE = VIH)
WS256K32-XXX
www.DataSheet4U.com
ADDRESS
CS
OE
DATA I/O
tRC
tAA
tACS
tCLZ
tCHZ
tOE
tOLZ
HIGH IMPEDANCE
tOHZ
DATA VALID
READ CYCLE 2 (WE = VIH)
FIG. 5
WRITE CYCLE - WE CONTROLLED
ADDRESS
CS
WE
DATA I/O
tWC
tAW
tCW
tAH
tAS tWP
tWHZ
tOW
tDW tDH
DATA VALID
WRITE CYCLE 1, WE CONTROLLED
FIG. 6
WRITE CYCLE - CS CONTROLLED
ADDRESS
CS
tAS
tWC
WS32K32-XHX
tAW
tCW
tAH
WE
DATA I/O
tWP
tDW tDH
DATA VALID
WRITE CYCLE 2, CS CONTROLLED
5 White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet WS256K32-XXX.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| WS256K32-XXX | 256Kx32 SRAM MODULE | White Electronic Designs |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |