|
|
PDF W24257 Data sheet ( Hoja de datos )
| Número de pieza | W24257 | |
| Descripción | 32K X 8 High Speed CMOS Static RAM | |
| Fabricantes | Winbond | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de W24257 (archivo pdf) en la parte inferior de esta página. Total 10 Páginas | ||
|
No Preview Available !
W24257
GENERAL DESCRIPTION
32K × 8 CMOS STATIC RAM
The W24257 is a slow speed, low power CMOS static RAM organized as 32768 × 8 bits that operates
on a single 5-volt power supply. This device is manufactured using Winbond's high performance
CMOS technology.
FEATURES
• Low power consumption:
− Active: 325 mW (max.)
− Standby: 75 µW (max.) (LL-version)
150 µW (max.) (L-version)
• Access time: 70 nS (max.)
• Single +5V power supply
• Fully static operation
PIN CONFIGURATIONS
• All inputs and outputs directly TTL compatible
• Three-state outputs
• Battery back-up operation capability
• Data retention voltage: 2V (min.)
• Packaged in 28-pin 330 mil SOP,
standard type one TSOP (8 mm x 13.4 mm )
BLOCK DIAGRAM
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O3
V SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28-pin
SOP
28 V DD
27 #WE
26 A13
25 A8
24 A9
23 A11
22 #OE
21 A10
20 #CS
19 I/O8
18 I/O7
17 I/O6
16 I/O5
15 I/O4
VDD
V SS
A0
.
.
A14
DECODER
#CS
#OE
#WE
CONTROL
CORE
ARRAY
DATA I/O
I/O1
.
.
I/O8
#OE
A11
A9
A8
A13
#WE
VDD
A14
A12
A7
A6
A5
A4
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28-pin
TSOP
28 A10
27 #CS
26 I/O8
25 I/O7
24 I/O6
23 I/O5
22 I/O4
21 VSS
20 I/O3
19 I/O2
18 I/O1
17 A0
16 A1
15 A2
PIN DESCRIPTION
SYMBOL
A0−A14
I/O1−I/O8
#CS
#WE
#OE
VDD
VSS
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Select Input
Write Enable Input
Output Enable Input
Power Supply
Ground
Publication Release Date: February 2001
- 1 - Revision A16
1 page  
TIMING WAVEFORMS
Read Cycle 1
(Address Controlled)
Address
DOUT
TRC
TAA
TOH
Read Cycle 2
(Chip Select Controlled)
#CS
DOUT
TC L Z
TA C S
Read Cycle 3
(Output Enable Controlled)
Address
#OE
#CS
D OUT
T RC
TAA
TAOE
TOLZ
TACS
TCLZ
W24257
TOH
TC H Z
TOH
TOHZ
TCHZ
Publication Release Date: February 2001
- 5 - Revision A16
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet W24257.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| W24256 | 32K X 8 CMOS STATIC RAM | Winbond |
| W24256-70 | 32K X 8 CMOS STATIC RAM | Winbond |
| W24256-70L | 32K X 8 CMOS STATIC RAM | Winbond |
| W24256-70LL | 32K X 8 CMOS STATIC RAM | Winbond |
| 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 |