|
|
PDF HT62L256 Data sheet ( Hoja de datos )
| Número de pieza | HT62L256 | |
| Descripción | HT62L256 EOL Notification | |
| Fabricantes | Holtek Semiconductor Inc | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de HT62L256 (archivo pdf) en la parte inferior de esta página. Total 9 Páginas | ||
|
No Preview Available !
HT812L0
2.8 Second Enhanced Tone Voice
Features
• Operating voltage: 2.4V~5.0V
• Low standby current (1µA Typ.)
• Voice/sound effect/simple melody output
• 2.8-second voice capacity
• 32 tone sections
• 16 words for each tone section
• Current type D/A output
• Mask options
– Pull-high resistor: 20kΩ/50kΩ/100kΩ
– KEY1: Direct or sequential/random key
– Trigger mode: Retriggerable/Non-retrig-
gerable
– KEY1 play normal mode or twin mode
Normal mode: one group for KEY1
Applications
• Toys
• Alarm clocks
• Public address system
General Description
The HT812L0 is a single chip PCM voice and
sound effect synthesizer. It provides 2.8 seconds
of voice capacity at a 6kHz sampling rate
(FSR=6kHz) and 32 sections of sound ef-
fects/simple melodies. A maximum of 8 keys or
4×4 MATRIX are available. Of the 8 keys or 4×4
Pin Assignment
Twin mode: Two groups for KEY1
– 8 direct key or 4×4 MATRIX keys
– Two-page trigger
– Key debounce time: 22ms/45ms
– Trigger function:
Level hold/one shot/level trigger
– FLAG1, FLAG2 outputs:
3Hz/sound level/busy/6Hz/endp
– Melody/tone decay time:
2 sec/1 sec/0.5 sec/0.25 sec
– Four kinds of envelope shapes for melody
• Tone shape: tone+2kHz/noise/tone/silence
• Tempo: 16ms/section~1 sec/section
• Dice form or 16-pin DIP
• Alert & warning system
• Sound effect generators
• Voice interface products
MATRIX, KEY1 can be optioned as a direct or
sequential/random key, so that it can play an
interlaced voice/sound effect/simple melody and
generate various special sound effects for toys
and sound effect generator applications.
1 5th May ’98
1 page  
HT812L0
For example:
Group 1-1 sec.1 + sec.4
Group 1-2 sec.3 + Melody.1
::
::
Group 1-N sec.2 + sec1 + Melody.1 + sec.1
Group 2 Melody.1 + Melody.3 + sec.1
Group 3 sec.2 + sec.3
::
::
Group 16 sec.1 + Melody.2 + Melody.3
Each time KEY1 is triggered, the corre-
sponding group is played in sequence. When
the last group is finished the KEY1 group
sequence will be repeated by successive trig-
ger inputs.
♦ KEY1 as a two-group key (TWIN mode).
KEY1 can play two groups, if KEY1 is held
down, the group 1 can be played repeatedly
till KEY1 is released, and immediately then
the group 2 will be played one cycle by the
rising edge of KEY1. (see Figure 1)
Key operation functions
KEY1~KEY8 all function as trigger keys. By
mask option, the HT812L0 provides three trig-
ger functions for the 8 keys , namely: “one shot”,
“level hold” and “level trigger”. All of the three
trigger functions can be optioned as retrigger-
able or non-retriggerable.
• Trigger function
♦ One shot
When one of the 8 keys (KEY1~KEY8) is
pressed and held down, or pressed momen-
tarily, the group corresponding to that held
or pressed key will play once.
♦ Level hold
When one of the 8 keys is triggered, the
group corresponding to the triggered key
will keep playing till that key is released.
♦ Level trigger
When one of the 8 keys is pressed and held
down, the corresponding group will keep
playing. Once the pressed key is released,
the group will not stop till the included sec-
tions are all completed.
Figure 1 One key two groups function (TWIN mode)
5 5th May ’98
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet HT62L256.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HT62L256 | 2.8 Second Enhanced Tone Voice | Holtek Semiconductor Inc |
| HT62L256 | HT62L256 EOL Notification | Holtek Semiconductor Inc |
| HT62L256 | 2.8 Second Enhanced Tone Voice | 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 |