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8A978P の電気的特性と機能

8A978PのメーカーはPericomです、この部品の機能は「PT8A978P」です。


製品の詳細 ( Datasheet PDF )

部品番号 8A978P
部品説明 PT8A978P
メーカ Pericom
ロゴ Pericom ロゴ 




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8A978P Datasheet, 8A978P PDF,ピン配置, 機能
Data Sheet
PT8A977P/977W/978P/978LW
5-Function Remote Controller
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Features
General Description
• PT8A977P/977W works as encoder and
PT8A978P/978LW works as decoder
• Five pins for five control functions
• Operating power-supply voltage: 2.5V to 5.0V
(977P, 977W, 978P), 2.0V to 5.0V (978LW)
• Auto-power-off if no press on any button in 8s or
continuously press on any button over 4 minues
• Press on any button as wake up (977P, 977W)
• Manual-power-off with OFF button
• One output pin used for external power control (977P,
977W)
• On-chip oscillator with an external resistor
• On-chip reversing amplifiers (978P, 978LW)
• Low operating current
• Few external components needed
• Package: 14-pin DIP, 14-pin SOIC, 16-pin DIP
and 16-pin SOIC
The PTA977P (or 977W) and PT8A978P (or 978LW)
provide a complete control functions to the remote-
controlled toy. The PT8A977P/977W has five input
pins corresponding with the five function buttons i.e,
forward, backward, rightward, leftward and turbo. The
encoding circuit in the PT8A977P/977W 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 PT8A978P (or 978LW) 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
Par t No.
Package
PT8A977P
14-pin DIP
PT8A977W
14-pin SOIC
PT8A978P
16-pin DIP
PT8A978LW
16-pin SOIC
There is an internal oscillator in the PT8A977P/977W
and 978P/978LW 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
PT8A977P/977W and PT8A978P/978LW must be
less than ±25%.
The auto-power-off function is achieved by an internal
counter. The PC output is used to control on/off state
of the external power supply. Pressing OFF button
can also shut down the power supply. Press on any
function button will wake up the chip promptly.
PT0074(10/01)
1
Ver:1
Free Datasheet http://www.datasheet-pdf.com/

1 Page





8A978P pdf, ピン配列
Data Sheet
PT8A977P/977W/978P/978LW
5-Function Remote Controller
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Pin Description
Pin Description of 977P/977W
Pin No.
Pin Name
1 Right
2 Test
3 GND
4 Backward
5 Forward
6 Turbo
7 SC
8 SO
9 Vcc
10 PC
11 OSCO
12 OSCI
13 OFF
14 Left
Description
With Pull-up resistor, rightward function selected if this pin connected to GND.
With Pull-up resistor, this pin is used for testing mode.
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 Description of 978P/978LW
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin 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
PT0074(10/01)
3
Ver:1
Free Datasheet http://www.datasheet-pdf.com/


3Pages


8A978P 電子部品, 半導体
Data Sheet
PT8A977P/977W/978P/978LW
5-Function Remote Controller
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Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested)
Note:
Storage Temperature ........................................................ -25oC to +85oC Stresses greater than those listed under MAXIMUM
Ambient Temperature with Power Applied ...................... -10oC to +40oC RATINGS may cause permanent damage to the
Supply Voltage to Ground Potential (Inputs & V Only) .... -0.5 to +6.0V
CC
device. This is a stress rating only and functional
Supply Voltage to Ground Potential (Outputs & D/O Only) -0.5 to +6.0V operation of the device at these or any other condi-
DC Input Voltage ................................................................ -0.5 to +6.0V tions above those indicated in the operational sec-
DC Output Current ........................................................................ 20mA tions of this specification is not implied. Exposure
Power Dissipation ....................................................................... 500mW to absolute maximum rating conditions for ex-
tended periods may affect reliability.
DC Electrical Charateristics
DC Electrical Charateristics of 977P/977W
Parameters
Description
Test Condition
VCC Operating Voltage
ICC Supply Current
Output unloaded
ISTB Stand-by Current
OFF State
VIL Input Low Voltage
Guaranteed Logic LOW level
VIH Input High Voltage
Guaranteed Logic HIGH level
IIL
Input Low Current Pin 1, 4, 5, 6, 13, 14
V = 0V, ON state
IL
IIH
Input High Current Pin 1, 4, 5, 6, 13, 14
VIH = 4V, ON state
II Input Current
Pin 12
VIH = 0 ~ 4V, ON state
IOL Output Low Current
VOUT = 0.5 V
Pin 7, 8, 10
IOH Output High Current
Pin 11
VOUT = 3.5 V
VOUT = 3.5 V
Note: Over the Operating Rating, 0°C £ T £ 70°C, V = 4V
A CC
Min.
2.5
3.0
150
-1.0
-200
Type
4.0
DC Electrical Charateristics of 978P/978LW
Parameters
Description
Test Condition
VCC Operating Voltage - 978P
Operating Voltage - 978LW
ICC Supply Current
ISTB Stand-by Current
VIL Input Low Voltage
VIH Input High Voltage
IIL Input Low Current Pin 3, 8, 9
Input High Current Pin 3
IIH
Input High Current Pin 8, 9
II Input Current
Pin 14, 16
IOL
Pin 1, 5, 15
Output Low Current
Pin 6, 7, 10, 11, 12
Pin 1, 5, 15
IOH Output High Current
Pin 6, 7, 10, 11, 12
Output unloaded
OFF State
Guaranteed Logic LOW level
Guaranteed Logic HIGH level
VIL = 0V, ON state
V = 4V, ON state
IH
VIH = 4V, ON state
VIH = 0 ~ 4V, ON state
VOUT = 0.5 V
VOUT = 0.5 V
VOUT = 3.5 V
VOUT = 3.5 V
Note: Over the Operating Rating, 0°C £ TA £ 70°C, VCC = 4V
Min.
2.5
2.0
3.0
200
2
-200
-500
Type
4.0
Max.
5.0
100
5
0.8
-60
10
±10
- 800
Units
V
uA
uA
V
V
uA
uA
uA
uA
mA
uA
Max.
5.0
5.0
1
10
0.8
-60
60
10
±10
850
- 850
Units
V
V
mA
uA
V
V
uA
uA
uA
uA
uA
mA
uA
uA
PT0074(10/01)
6
Ver:1
Free Datasheet http://www.datasheet-pdf.com/

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
8A978

REMOTE CONTROLLER

ETC
ETC
8A978P

PT8A978P

Pericom
Pericom


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