DataSheet.es    


PDF LH6V4256 Data sheet ( Hoja de datos )

Número de pieza LH6V4256
Descripción CMOS 1M (256K x 4) Dynamic RAM
Fabricantes Sharp Electrionic Components 
Logotipo Sharp Electrionic Components Logotipo



Hay una vista previa y un enlace de descarga de LH6V4256 (archivo pdf) en la parte inferior de esta página.


Total 18 Páginas

No Preview Available ! LH6V4256 Hoja de datos, Descripción, Manual

LH6V4256
FUNCTION
262,144 words × 4 bit
Access time: 100 ns (MAX)
Cycle time: 190 ns (MIN)
Fast page mode cycle time: 60 ns (MIN)
Power supply: +3.3 V ±0.3 V
Power consumption (MAX):
Operating: 126 mW
Standby: 0.54 mW
Built-in latch circuit for row-address,
column-address, and input data
OE = Don’t care in early write operation
RAS only refresh, hidden refresh, and
CAS before RAS refresh capability
On-chip refresh counter
512 refresh cycle/8 ms
Packages:
20-pin, 300-mil DIP
26-pin, 300-mil SOJ
28-pin, 8 × 13 mm2 TSOP (Type I)
CMOS 1M (256K × 4) Dynamic RAM
DESCRIPTION
The LH6V4256 is a 262,144 word × 4-bit dynamic
RAM which allows fast page mode access. The
LH6V4256 is fabricated on SHARP’s advanced CMOS
double-level polysilicon gate technology. With its input
multiplexed and packaged in the standard 20-pin DIP,
26-pin SOJ, or 28-pin TSOP (I) packages, it is easy to
realize memory systemswith low power dissipation and
large memory capacity. The LH6V4256 operates on a
single +3.3 V power supply and the built-in biasing
voltage generator circuit.
PIN CONNECTIONS
20-PIN DIP
TOP VIEW
I/O1
I/O2
WE
RAS
NC
A0
A1
A2
A3
VCC
1
2
3
4
5
6
7
8
9
10
20 VSS
19 I/O 4
18 I/O3
17 CAS
16 OE
15 A8
14 A7
13 A6
12 A5
11 A4
6V4256-1
Figure 1. Pin Connections for DIP Package
2-14

1 page




LH6V4256 pdf
LH6V4256
CMOS 1M (256K × 4) Dynamic RAM
ABSOLUTE MAXIMUM RATINGS
PARAMETER
RATING
UNIT
NOTE
Applied voltage on all pins
– 0.5 to +5.5
V
1
Output short circuit current
50 mA
Power dissipation
1.0 W
Operating temperature
Storage temperature
0 to +70
– 65 to +150
°C
°C
NOTE:
1. The maximum applicable voltage on any pin with respect to VSS.
RECOMMENDED OPERATING CONDITIONS (TA = 0 to +70°C)
PARAMETER
SYMBOL MIN. TYP.
MAX.
UNIT
Supply voltage
Input voltage
VCC 3.0 3.3
3.6
VSS
0
0
0
VIH 2. 3
VCC + 0.3
VIL – 0.3
0.6
V
V
V
V
CAPACITANCE (TA = 0 to +70°C, f = 1 MHz, VCC = 3.3 V ±0.3 V)
PARAMETER
CONDITIONS
SYMBOL
MIN.
MAX.
Input capacitance
Input/output capacitance
A0 – A8
RAS, OE, CAS, WE
I/O1 – I/O4
CIN1
CIN2
COUT1
6
7
7
UNIT
pF
pF
pF
DC ELECTRICAL CHARACTERISTICS (TA = 0 to +70°C, VCC = 3.3 V ±0.3 V)
PARAMETER
CONDITIONS
SYMBOL MIN. MAX. UNIT NOTE
Average supply current in normal operation
Supply current in
standby mode
RAS = CAS VCC – 0.2 V
ICC1
ICC2
35 mA 1, 2, 3
0.15 mA
1
Average supply current in fast page mode
Average supply current in CAS before RAS refresh cycle
Average supply current in RAS only refresh cycle
Input leakage current
0 V VIN 4.8 V
0 V except on test pins
ICC3
ICC4
ICC5
ILI
30 mA 1, 2
35 mA 1, 2, 3
35 mA 1, 2, 3
–10 10 µA
Output leakage current
0 V VOUT 4.8 V
Output in high-impedance state
ILO –10 10 µA
Output ‘High’ Voltage
Output ‘Low’ Voltage
IOUT = – 2 0 0 µA
IOUT = 1 mA
VOH 2.15
V
VOL 0.4 V
NOTES:
1. Specified values are with outputs open.
2. ICC1, ICC3, ICC4, and ICC5 depend on cycle time.
3. Cycle time is 190 ns. Address transition is once at RAS = VIH and once at RAS = VIL.
2-18

5 Page





LH6V4256 arduino
LH6V4256
RAS
VIH
VIL
CAS
VIH
VIL
A0 - A8
VIH
VIL
WE
VIH
VIL
OE
VIH
VIL
I/O1
-
I/O4
VI/OH
VI/OL
CMOS 1M (256K × 4) Dynamic RAM
tRWC
tRAS
tRP
tRCD
tCRP
tASR
tRAD
tRAH
tASC
tCSH
tCAH
ROW
ADDRESS
COLUMN
ADDRESS
tRWD
tAWD
tRCS
tCWD
tRWL
tCWL
tWP
tOEH
tOEA
tCAC
tAA
tRAC
tDS
tOED
tOEZ
tOOH
tDH
VALID
DATA-OUT
VALID
DATA-IN
Figure 9. Read/Write Cycle
6V4256-10
2-24

11 Page







PáginasTotal 18 Páginas
PDF Descargar[ Datasheet LH6V4256.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
LH6V4256CMOS 1M (256K x 4) Dynamic RAMSharp Electrionic Components
Sharp Electrionic Components

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
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,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar