|
|
PDF HT23C512 Data sheet ( Hoja de datos )
| Número de pieza | HT23C512 | |
| Descripción | CMOS 64Kx 8-Bit Mask ROM | |
| Fabricantes | Holtek Semiconductor Inc | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de HT23C512 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
|
No Preview Available !
HT23C512
CMOS 64K×8-Bit Mask ROM
Features
• Operating voltage: 2.7V~5.5V
• Low power consumption
– Operation: 25mA Max. (VCC=5V)
10mA Max. (VCC=3V)
– Standby: 30µA Max. (VCC=5V)
10µA Max. (VCC=3V)
• Access time:150ns Max. (VCC=5V)
250ns Max. (VCC=3V)
• 65536×8 bits of mask ROM
• Mask options: chip enable CE/CE/OE1/OE1
and output enable OE/OE/NC
• TTL compatible inputs and outputs
• Tristate outputs
• Fully static operation
• Package type: 28-pin DIP/SOP
General Description
The HT23C512 is a read-only memory with high
performance CMOS storage device whose 512K
of memory is arranged into 65536 words by 8
bits.
For application flexibility, the chip enable and
output enable control pins can be selected as
active high or active low. This flexibility not only
allows easy interface with most microproces-
sors, but also eliminates bus contention in mul-
tiple bus microprocessor systems. An additional
feature of the HT23C512 is its ability to enter
the standby mode whenever the chip enable
(CE/CE) is inactive, thus reducing current con-
sumption to below 30µA. The combination of
these functions makes the chip suitable for high
density low power memory applications.
Block Diagram
1 24th Aug ’98
1 page  
HT23C512
Functional Description
The HT23C512 has two modes, namely data
read mode and standby mode, controlled by
CE/CE/OE1/OE1 and OE/OE/NC inputs.
• Standby mode
The HT23C512 has lower current consumption,
controlled by the chip enable input (CE/CE).
When a low/high level is applied to the CE/CE
input regardless of the output enable
(OE/OE/NC) states, the chip will enter the
standby mode.
• Data read mode
When both the chip enable (CE/CE/OE/OE1)
and the output enable (OE/OE/NC) are active,
the chip is in data read mode. Otherwise,
active CE/CE and inactive OE/OE/NC result
in deselect mode. The output will remain in
Hi-Z state.
Timing Diagrams
• Propagation delay due to address (CE/CE/OE1/OE1 and OE/OE are active)
• Propagation delay due to chip enable and output enable (address valid)
5 24th Aug ’98
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet HT23C512.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HT23C512 | CMOS 64Kx 8-Bit Mask ROM | Holtek Semiconductor Inc |
| 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 |