ETC PT8A992

Data Sheet
PT8A992P/993P
10-Function Remote Controller
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Features
General Description
• The PT8A992P works as the encoder and the
The PT8A992P/993P is a pair of CMOS LSIs designed
PT8A993P works as the decoder
for remote controlled toy car application. They have 11
• 11 output pins, 4 for forward, backward, left and
control keys for controlling the corresponding motion (i.e.
right functions, and 7 functional keys
forward, backward, left, right and 7 other functions) of
• Operation power supply: 3.0V to 5.5V
the remote controlled car.
• Auto power-off if no key pressed within 2s
(PT8A992P)
• Auto shut-down if keep pressing a key for more
than 4 minutes (PT8A992P)
• Auto shut down if no signal input for more than 5
minute (PT8A993P)
• Low operating current
• On-chip oscillator with an external resistor
• On-chip receiving amplifiers
• Few external components needed
Block Diagram
Figure 1. Block Diagram of PT8A992P
f0/2
TDIS
OSCI
OSCO
Forward
Backward
Left
Right
F1
F2
F3
F4
F6/F7
F5
Oscillator
f0
Timing
Generator
Latch
Circuit
SC
SO
MUX
Logic
Control
PC
Counters
PT0054(16/03/01)
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Ver:2
Data Sheet
PT8A992P/993P
10-Function Remote Controller
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Figure 2. Block Diagram of PT8A993P
ON/OFF
OSCI
OSCO
Oscillator
SI
Amp
VI1
VO1
VI2
VO2
VT1
PC
Timing
Generator
Counter
Decoding
Circuit
PLA
VT
Detector
VT2
Right
Left
Backward
Forward
F1
F2
F3
F4
F5
F6
F7
Latch
Circuit
Package and Pin Assignment
Figure 3. Package and Pin Assignment
Right
TDIS
GND
Backward
Forward
F5
SC
F6/F7
F4
PT8A992P
PT8A993P
18-Pin PDIP
24-Pin PDIP
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
VO2
GND
SI
OSCI
OSCO
F1
Right
F2
Left
PC
ON/OFF
F3
Left
F1
OSCI
OSCO
PC
VCC
SO
F2
F3
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VI2
VO1
VI1
VCC
F5
Forward
Backward
VT2
VT1
F7
F6
F4
Top View
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Ver:2
Data Sheet
PT8A992P/993P
10-Function Remote Controller
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Pin Description
Table 1. Pin Description of PT8A992P
P in No
P in Na me
Typ e
1
Right
I
The rightward function selected if this pin connected to GND
2
TDIS
I
For timer enable: opened or connected to VCC,
For timer disenable: connected to GND,
For test mode: connected to 1/2 VCC
3
GND
GND
4
Backward
I
Backward function selected if this pin connected to GND
5
Forward
I
Forward function selected if this pin connected to GND
6
F5
I
Function 5 select if this pin connected to GND
7
SC
O
Output pin of the encoding signal with carrier freqency
8
F6/F7
I
Connect to GND to toggle between F6 and F7 of PT8A993 when working with
PT8A993
9
F4
I
Function 4 selected if connected to GND
10
F3
I
Function 3 selected if connected to GND
11
F2
I
Function 2 selected if connected to GND
12
SO
O
Output pin of the encoding signal without carrier freqency
13
VCC
P
Power supply
14
PC
O
Power control output pin
15
OSCO
O
Oscillator output pin
16
OSCI
I
Oscillator input pin
17
F1
I
Function 1 selected if connected to GND
18
Left
I
Leftward function selected if this pin connected to GND
PT0054(16/03/01)
Descr ip t ion
Ground
3
Ver:2
Data Sheet
PT8A992P/993P
10-Function Remote Controller
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Table 2. Pin Description of PT8A993P
P in No
P in Na m e
Typ e
1, 23
VO1, VO2
O
2
GND
GND
3
SI
I
Input pin for encoded signal
4
OSCI
I
Oscillator input pin
5
OSCO
O
Oscillator output pin
6
F1
O
F1 function output pin
7
Right
O
Rightward output pin
8
F2
O
F2 function output pin
9
Left
O
Leftward output pin
10
PC
O
Power control pin
11
ON/OFF
I
ON/OFF pin
12
F3
O
F3 function output pin
13
F4
O
F4 function output pin
14
F6
O
F6 function output pin
15
F7
O
F7 function output pin
16
VT1
I
Auto shut off input pin: if the voltage on this pin keeps higher than 0.095VCC for 3
seconds, all outputs will be shut off automatically.
17
VT2
I
Auto shut off input pin: if the voltage on this pin keeps higher than 0.095VCC for 3
seconds, all outputs will be shut off automatically.
18
Backward
O
Backward output pin
19
Forward
O
Forward output pin
20
F5
O
F5 function output pin
21
VCC
P
Power supply
22, 24
VI1,VI2
I
Input pins of invertor 1 and 2 for signal amplifier
PT0054(16/03/01)
Descr ip t ion
Output pins of inverter 1 and 2 for Signal amplifier
Ground
4
Ver:2
Data Sheet
PT8A992P/993P
10-Function Remote Controller
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Functional Description
Coding Method
For PT8A992P, a PC pin is used to control on or off of external
power supply. When pressing any key, the PC output pin will
keeps on a high level. If none of keys is pressed within 2 seconds, the PT8A992 will shut down automatically and no level
output on the PC pin. On the other hand, if any of keys is kept
pressed for 4 minutes, the PT8A992P will also shut down to
save battery power.
Each trigger pin is triggered by corresponding bit of data in
format of “1”. The data string is 18-bit and divided to four
segments, i.e., Start Code, Data Code, Parity Code and End
code, where
Start Code = 11110.
Data Code = F3 F4 F B F5 R L F1 F6 F7 F2
F = Forward
R = Right
F2 = Function 2
F6 = Function 6
The PT8A993P also features Auto Power Off function when
no any signal received within 5 minutes. Two over-current protection pins VT1 and VT2 are used for current limit in accordance with the toy safety standard HD271. They act to shut
down the output level if the input voltage keeps more than
0.095VCC for 3 seconds.
B = Backward
L = Left
F3 = Function 3
F7 = Function 7
F5 = Function 5
F1= Function 1
F4 = Function 4
Parity Code = Even parity check result
End Code is for data latch.
Data code can be any combination of F, B, F5, R, L, F1, F2,
F3, F4, F6 and F7 except F&B and R&L.
Data Format
See Figure 4.
Figure 4. Data Format
"1"
Frequency: 500Hz, Duty Cycle: 3/4
"0"
Frequency: 500Hz, Duty Cycle: 1/4
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 ......................... 0oC to +70oC RATINGS may cause permanent damage to the
Supply Voltage to Ground Potential (Inputs & Vcc Only) ..... -0.5 to +5.5V device. This is a stress rating only and functional
Supply Voltage to Ground Potential (Outputs & D/O Only) -0.5 to +5.5V operation of the device at these or any other condiDC Input Voltage ................................................................ -0.5 to +5.5V tions above those indicated in the operational secDC Output Current ........................................................................ 20mA tions of this specification is not implied. Exposure
Power Dissipation ....................................................................... 500mW to absolute maximum rating conditions for extended
periods may affect reliability.
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Data Sheet
PT8A992P/993P
10-Function Remote Controller
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Recommended Operation Conditions
Table 3. Recommended Operation Conditions
Sym
Descr ip t ion
VCC
Test C on d it ion s
Min
Typ
Ma x
Un it s
Supply Voltage
3
4
5
V
VIH
Input HIGH Voltage
0.7VCC
4
-
V
VIL
Input LOW Voltage
-
0
0.3VCC
V
FOSC
Oscillator Frequency
109
128
146
kHz
TA
Operation Temperature
0
-
70
Min
Typ
Ma x
Un it s
1
3
uA
O
C
DC Electrical Characteristics
Table 4. DC Electrical Characteristics of PT8A992P
Sym
Descr ip t ion
Test C on d it ion s
ISTB
Stand-by Current
TA = 70OC, Off State
Output HIGH Current
- PC and SO Pins
IOH
IOL
Output HIGH Currentl - SC Pin
VOH = 3.5V, TA = 25OC
IIL
3
mA
4
5
mA
Output HIGH Current - OSCO
Pin
220
Output LOW Current PC and SO Pins
2
4
mA
4
5
mA
Output LOW Currentl - SC Pin
VOL = 0.5V, TA = 25OC
Output LOW Current OSCO Pin
IIH
2
Input HIGH Current Forward, Backward, Left, Right,
F1, F2, F3, F4, F5, F6/F7, OSCI
and TDIS Pins
Input LOW Current Forward, Backward, Left, Right,
F1, F2, F3, F4, F5, F6/F7 and
TDIS Pins
600
220
600
uA
1
10
uA
25
100
VCC = 5.5V, VIH = VCC,
TA = 25OC
VCC = 5.5V, VIL = 0V,
TA = 25OC
10
uA
Input LOW Current - OSCI Pin
uA
1
10
Note: These specifications apply for VCC = 4.0V and 0OC £ TA £ 70OC, unless otherwise specified.
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Data Sheet
PT8A992P/993P
10-Function Remote Controller
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Table 5. DC Electrical Characteristics of PT8A993P
Sym
Descr ip t ion
Test C on d it ion s
ISTB
Stand-by Current
Off State
Output HIGH Current VO1, VO2 and OSCO Pins
Output HIGH Current Forward, Backward, Left and
Right Pins
Min
Typ
Ma x
Un it s
3
5
uA
850
uA
300
6
10
Output HIGH Current F1, F2, F3 F4, F5 and F6 Pins
3
6
Output HIGH Current - PC Pin
2
5
Output LOW Current VO1, VO2 and OSCO Pins
300
IOH
Output LOW Current Forward, Backward, Left and
Right Pins
VOH = 3.5V, TA = 25OC
mA
850
3
5
Output LOW Current F1, F2, F3, F4, F5 and F6 Pins
6
11
Output LOW Current - PC Pin
2
9
Input HIGH Current VT1 and VT2 Pins
20
30
IOL
IIH
Input HIGH Current - SI, VI1,
VI2, ON/OFF and OSCI Pins
VOL = 0.5V, TA = 25OC
mA
Input LOW Current ON/OFF Pin
100
VI = VCC, TA = 25OC, On state
uA
Input LOW Current - SI, VI1,
VI2, VT1, VT2 and OSCI Pins
IIL
uA
1
10
1
10
VI = 0V, TA = 25OC, On state
uA
15
30
100
IDR
Pull-Down Resistor Current VI1 and VI2 Pins
VI = 4.0V, Off State
100
290
uA
IUR
Pull-Up Resistor Current SI Pin
VI = 0V, Off State
20
100
uA
VOH
Output HIGH Voltage VO1 and VO2 Pins
VI1, VI2 = 1.5V
3.5
VOL
Output LOW Voltage VO1 and VO2 Pins
VI1, VI2 = 2.5V
VT
Over-Current Limit VT1 and VT2 Pins
Forward is high.
0.35
V
0.5
V
0.45
V
Note: These specifications apply for VCC = 4.0V and 0OC £ TA £ 70OC, unless otherwise specified.
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Data Sheet
PT8A992P/993P
10-Function Remote Controller
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AC Electrical Characteristics
Table 6. AC Electrical Characteristics of PT8A992P
Sym
Descr ip t ion
Test C on d it ion s
Min
Typ
Ma x
Un it s
fOSC
(Note2)
Oscillator Frequency
TA=25 C, Rf = 200kΩ
109
128
146
kHz
tFUN
Period of Function Code
fOSC = 128kHz, TA = 25oC
1.7
2
2.3
ms
tSTA
Start-Code Period
fOSC = 128kHz, TA = 25oC
1.7
2
2.3
ms
fCSC
Carrier Frequency
fOSC = 128kHz, TA = 25oC
64
-
kHz
tOFF
Auto-off Time
fOSC = 128kHz, TA = 25oC
2
VCC
Power Supply Range
-
ICC
Supply Current
Output Unloaded
3
4
s
5.5
V
300
uA
Table 7. AC Electrical Characteristics of PT8A993P
Sym
Descr ip t ion
Test C on d it ion s
Min
Typ
Ma x
Un it s
fOSC
(Note2)
Oscillator Frequency
TA=25 C, Rf = 200kΩ
109
128
146
kHz
tFUN
Period of Function Code
fOSC = 128kHz, TA = 25oC
1.7
2
2.3
ms
tSTA
Start-Code Period
fOSC = 128kHz, TA = 25oC
1.7
2
2.3
ms
tOFF
Auto-off Time
fOSC = 128kHz, TA = 25oC
VCC
Power Supply Range
-
5
3
4
minute
5.5
V
Note:
1.These specifications apply for VCC = 4.0V and 0OC £ TA £ 70OC, unless otherwise specified.
2.The frequency of standard samples is tested on standard testing-board.
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Data Sheet
PT8A992P/993P
10-Function Remote Controller
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R7
100
C3
47P
47U/16V
C2
0.1U
10
C1
12
R11
1K
13
14
330
R9
R2
15
200K
16
17
3.9K
18
F3
F4
F2
F6/F7
SO
SC
VCC
F5
PC
F o rw a rd
O SC O
B ac k w a rd
O SC I
GND
F1
TD IS
L eft
R ig h t
9
8
7
6
5
4
3
2
1
9V
R10
R4
100
27M
PT 8 A 9 9 2 P
11
4.3V
D2
2.2M
R8
6.8K
R5
1N4148
D1
R3
120K
CRYSTAL
L1
22U
Q1
9014H
47P
C4
R6
33K
C5
0.02U
C6
47P
L2
22U
Q2
9014H
C8
47P
C7
0.02U
L3
C9
100P
A
C10
10P
Figure 5. Typical Application Circuit of PT8A992P
PT0054(16/03/01)
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Data Sheet
PT8A992P/993P
10-Function Remote Controller
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330
R22
1K
Q 17
8050
Q 16
8550
R25
Q 12
9013
Q8
882
R23
100
330
Q 15
8050
M2
MOTOR2
Q 14
8550
Rs
Q 10
882
Q9
772
M1
MOTOR1
Q7
772
D1
1N4148
R26
Q 13
9013
R25
10/1W
330
Q6
9013
R20
R18
100
R16
1K
S1
B1
6V
R24
100
Figure 6. Typical Application Circuit of PT8A993P
R15
1K
C12
470
PC
10
L eft
17
L R TD / VT2
F2 B
8
18
B ack w ard
R ig h t
7
F1
6
F o rw ard
O SCO
F5
21
VC C
22
VI1
23
24
5
O SCI
4
SI
3
VO 1
GND
2
VI2
VO 2
1
R7
2.2M
C14
30
C13
.1u
9
C5
473
100k
R2
L2
PT0054(16/03/01)
10
332
C3
L1
6.8
R1
1k
C2
68
C4
4.7u
C1
10
A1
Q1
9014
C6
47
R3
3.9K
R6
2.2K
1K
F7
R21
11
VT1
20
2.2M
O N /O FF
2.2K
R5
.1u
C11
R4
F6
16
19
R30
C9
C10
10u 3.6K .01u
F3
R9
200K
330
R19
15
12
F4
C15
1000
Q5
9013
R17
100
14
R8
2.2K
220
13
R11
C16
1000U 180
Z5.1V
R31
PT 8 A 9 9 3
Ver:2
Data Sheet
PT8A992P/993P
10-Function Remote Controller
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Notes
Pericom Technology Inc.
Email: [email protected]
Web Site: www.pti.com.cn, www.pti-ic.com
China:
No. 20 Building, 3/F, 481 Guiping Road, Shanghai, 200233, China
Tel: (86)-21-6485 0576
Fax: (86)-21-6485 2181
Asia Pacific:
Unit 1517, 15/F, Chevalier Commercial Centre, 8 Wang Hoi Rd, Kowloon Bay, Hongkong
Tel: (852)-2243 3660
Fax: (852)- 2243 3667
U.S.A.:
2380 Bering Drive, San Jose, California 95131, USA
Tel: (1)-408-435 0800
Fax: (1)-408-435 1100
Pericom Technology Incorporation reserves the right to make changes to its products or specifications at any time, without notice, in order to improve
design or performance and to supply the best possible product. Pericom Technology does not assume any responsibility for use of any circuitry described
other than the circuitry embodied in Pericom Technology product. The company makes no representations that circuitry described herein is free from
patent infringement or other rights, of Pericom Technology Incorporation.
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