|
|
PDF PT8A978B Data sheet ( Hoja de datos )
| Número de pieza | PT8A978B | |
| Descripción | 5-Function Remote Controller | |
| Fabricantes | Pericom Semiconductor Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de PT8A978B (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
|
No Preview Available !
PT8A977B/978B/978BL
5-Function Remote Controller
Features
Description
• PT8A977B works as encoder and PT8A978B/
978BL works as decoder
• Five pins for five control functions
• Operating power-supply voltage: 2.5V to 5.0V (978B),
2.0V to 5.0V (978BL), 1.8V to 5.0V(977B)
• Auto-power-off and oscillation-off if no press on
any button (977B)
• Press on any button to wake up (977B)
• One output pin used for external power control
(977B)
• On-chip oscillator with an external resistor
• On-chip reversing amplifiers (978B, 978BL)
• Low operating current
• Few external components needed
• Package: 14-pin DIP, 14-pin SOIC, 16-pin DIP
, 16-pin SOIC, die form and wafer form
The PT8A977B and PT8A978B (or 978BL) provide
complete control functions to the remote-controlled toy.
The PT8A977B has five input pins corresponding with
the five function buttons i.e, forward, backward, rightward,
leftward and turbo. The encoding circuit in the PT8A977B
sends digital codes to the two output pins SO and SC.
The digital codes correspond to the definite function
buttons or their combinations. The SO and SC outputs
are used in wireless and infra-red applications
respectively.
The PT8A978B (or 978BL) has five output pins
corresponding with the five actions. The received signals
are amplified by the three-stage amplifier, and then the
appropriate amplified signals are sampled, fault-tolerantly
checked and decoded to control the actions of the remote-
controlled toy.
Ordering Information
Part No.
Pa ck a ge
PT8A977BPE
Lead free 14-pin DIP
PT8A977BWE
PT8A977BDE
Lead free and Green 14-pin
SOIC
Die Form
PT8A977BUWF
Wafer Form
PT8A978BPE
Lead free 16-pin DIP
PT8A978BLWE
Lead free and Green 16-pin
SOIC
PT8A978BDE
Die Form
PT8A978BUWF
Wafer Form
Note:
Adding E= Pb-free or Pb-free and Green
Adding X suffix=Tape/Reel
There is an internal oscillator in the PT8A977B and 978B/
978BL respectively. By adding an external resistor
conveniently, the oscillator will be constructed. The
oscillator frequency can be adjusted by the external
resistor. The relative error between the frequencies of
the two on-chip oscillators in the PT8A977B and
PT8A978B/978BL must be less than ±25%.
The auto-power-off function is achieved by an internal
counter (977B). The PC output is used to control on/off
state of the external power supply. Press on any function
button will wake up the chip promptly.
12-07-0007
1 PT0085-10 07/06/2012
1 page  
Pin/Pad Description
Pin/Pad Description of 977B
Pin No.
Pin/Pad Name
1 Right
2 GND
3 Backward
4 Forward
5 Turbo
6 SC
7 SO
8 Vcc
9 PC
10 OSCO
11 OSCI
12 OFF
13 Left
PT8A977B/978B/978BL
5-Function Remote Controller
Description
With Pull-up resistor, rightward function selected if this pin connected to GND.
Negative power supply
With Pull-up resistor, backward function selected if this pin connected to GND.
With Pull-up resistor, forward function selected if this pin connected to GND.
With Pull-up resistor, turbo function selected if this pin connected to GND.
Output pin of the encoding signal with carrier frequency
Output pin of the encoding signal without carrier frequency
Positive power supply
Power control output pin
Oscillator output pin
Oscillator input pin
With Pull-up resistor, this pin is used to shut down the external power supply.
With Pull-up resistor, leftward function selected if this pin connected to GND.
Pin/Pad Description of 978B/978BL
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin/Pad Name
VO2
GND
SI
OSCI
OSCO
Right
Left
RD
LD
Backward
Forward
Turbo
Vcc
VI1
VO1
VI2
Description
Output pin for the amplifier 2
Negative power supply
Input pin of the encoding signal
Oscillator input pin
Oscillator output pin
Rightward output pin
Leftward output pin
With Pull-up resistor, rightward function disabled if this pin connected to GND.
With Pull-up resistor, leftward function disabled if this pin connected to GND.
Backward output pin
Forward output pin
Turbo output pin
Positive power supply
Input pin for the amplifier 1
Output pin for the amplifier 1
Input pin for the amplifier 2
12-07-0007
5 PT0085-10 07/06/2012
5 Page 
14-pin DIP
PT8A977B/978B/978BL
5-Function Remote Controller
12-07-0007
11 PT0085-10 07/06/2012
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet PT8A978B.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| PT8A9781 | (PT8A977B / PT8A9781) PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars | Pericom Semiconductor Corporation |
| PT8A9781DE | (PT8A977B / PT8A9781) PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars | Pericom Semiconductor Corporation |
| PT8A978B | 5-Function Remote Controller | Pericom Semiconductor Corporation |
| PT8A978BL | 5-Function Remote Controller | Pericom Semiconductor Corporation |
| 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 |