TOSHIBA TC9243AFG

TC9243APG/AFG
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC9243APG, TC9243AFG
Infrared Remote-Control Signal Transmission LSI
The TC9243APG and TC9243AFG are infrared remote-control
signal transmission LSIs suitable for remote control of audio systems,
TVs, VTRs, CD players, etc.
TC9243APG
Features
•
Wide range of operating supply voltages, enabling low-voltage
operation:
•
Thirty-two (32) basic functions are available.
VDD = 2.0 to 4.0 V
Support of multiple keying enables up to 112 instructions (28 × 4)
to be output.
•
Interference with other equipment can be prevented because
seven (7) bits out of eight (8) bits of system code are presettable.
•
Equipped with transmission display output pin.
•
Low current dissipation: IQD ≤ 1 µA (during standby)
•
Two types of package, DIP and flat type, are available:
TC9243AFG
DIP20: TC9243APG
SOP20: TC9243AFG
Weight
DIP20-P-300-2.54A: 1.4 g (typ.)
SOP20-P-300-1.27: 0.48 g (typ.)
Pin Assignment
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TC9243APG/AFG
Block Diagram
Pin Function
Pin No.
Symbol
1
GND
20
VDD
2
XT
3
XT
4
RST
Reset Input
5~12
K0~K7
Key Inputs
13~16
17
T0~T3
CODE
Pin Name
Function and Operation
Power Terminal
For applying the supply voltage (VDD = 2.0 to 4.0 V)
Oscillator Terminal
Input/output terminals for the ceramic oscillators, with built-in
amplifier circuit and feedback resistor
Key Scan Output
Code Scan Output
When this pin is set at “L” level, the inside is initialized.
Equipped with a built-in pull-up resistor.
Input terminals for the key matrix.
Each pin has a built-in pull-down resistor.
Key matrix scan output terminals.
CMOS output.
Scan output terminals for code setting.
P-ch open drain output.
18
TXON
Transmission Display Output
Transmission display LED driving output terminal
19
TXOUT
Transmission Output
Infrared LED driving output terminal
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TC9243APG/AFG
Operations
1. Key Matrix
The TC9243APG and TC9243AFG enable the setting of a maximum of thirty-two (32) keys through combining
the “K0~K7” and “T0~T3” keys. Furthermore, System Codes are settable in seven (7) bits through combining the
“K0~K6” and “CODE” keys.
•
The keys “K08”, “16”, “24” and “32” (the shift keys) can be pushed simultaneously with other keys (the normal
keys).
However, the simultaneous keying of either shift keys or normal keys is prohibited.
•
The system code setting is done through the use of the diode jumper between the “CODE” lines and the
“K0~K6” lines.
With the diode jumper, the data code will become “1”.
However, if the setting of the “CODE” and “K0~K6” keys is only at one point, the keys are connectable
directly without using the diode jumper.
Furthermore, the “S7” key is fixed at “1” and cannot be changed.
2. Data Format
Note 1: “80H~8FH” out of the system codes are free codes.
Although freely available in principle, these codes may already be used by other equipment. There is,
therefore, a risk of interference occurring.
Other system codes have been customized and their general use is therefore prohibited.
Toshiba will assume no responsibility for interference and other problems that may result from the use of other
system codes.
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TC9243APG/AFG
3. Key Data Code
Key No.
Kn
D0
D1
D2
D3
D4
K01
K0
1
0
0
0
0
K02
K1
0
1
0
0
0
K03
K2
1
1
0
0
0
K04
K3
0
0
1
0
0
K4
1
0
1
0
0
K06
K5
0
1
1
0
0
K07
K6
1
1
1
0
0
K05
Tn
T0
•
Normal-key data
•
“00000” except dual keying.
K08
K7
K09
K0
1
0
0
1
0
K10
K1
0
1
0
1
0
K11
K2
1
1
0
1
0
K12
K3
0
0
1
1
0
K4
1
0
1
1
0
K14
K5
0
1
1
1
0
K15
K6
1
1
1
1
0
K16
K7
K17
K0
1
0
0
0
1
K18
K1
0
1
0
0
1
K19
K2
1
1
0
0
1
K20
K3
0
0
1
0
1
K4
1
0
1
0
1
K22
K5
0
1
1
0
1
K23
K6
1
1
1
0
1
K24
K7
K25
K0
1
0
0
1
1
K26
K1
0
1
0
1
1
K27
K2
1
1
0
1
1
K28
K3
0
0
1
1
1
K4
1
0
1
1
1
K30
K5
0
1
1
1
1
K31
K6
1
1
1
1
1
K32
K7
K13
K21
K29
T1
T2
T3
•
Normal-key data
•
“00000” except dual keying.
•
Normal-key data
•
“00000” except dual keying.
•
Normal-key data
•
“00000” except dual keying.
D5
Shift-key data
•
“000” except dual keying
Shift-key data
“000” except dual keying
4
1
0
•
Shift-key data
•
“000” except dual keying
0
1
•
Shift-key data
•
“000” except dual keying
1
Normal keys: K01~K07, K09~K15, K17~K23, K25~K31
0
•
1
Shift keys: K08, K16, K24, K32
0
•
1
•
D7
•
1
•
D6
1
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TC9243APG/AFG
4. TXOUT Output Waveform
Key ON
Note 2: In case of fOSC = 455 kHz
Data Transmission Waveform
Continuous Transmission Waveform
Carrier Waveform
Tm = 5/fOSC: system clock
a: system code output time
fC = fOSC/12
When the oscillation frequency is 455 kHz, the signal is output after being pulse-modulated by 37.9 kHz at a
duty ratio of 1/3, in 1/12 division, by the carrier generation circuit.
Caution
•
•
In preparing receiving software, strictly adhere to the following instructions:
In the case of system codes, the same code is transmitted twice. Therefore always decode these two codes and
determine whether they agree with each other.
In the case of key data codes, always decode the key data code and its reversed code and determine whether they
agree with each other.
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TC9243APG/AFG
Maximum Ratings (Ta = 25°C)
Characteristic
Symbol
Rating
Unit
Supply voltage
VDD
−0.3~5.0
V
Input voltage
VIN
VSS − 0.3~VDD + 0.3
V
Output current
IOUT
−20
Power dissipation
PD
350 (300)
Operating temperature
Topr
−20~75
°C
Storage temperature
Tstg
−40~125
°C
mA
(Note 3)
mW
Note 3: The value shown in parentheses applies to the TC9243FG.
Electrical Characteristics
Recommended Operating Conditions
(unless otherwise specified, VDD = 3.0 V, Ta = 25°C; for items with an asterisk (*), Ta = −25~75°C)
Characteristic
Symbol
Test
Circuit
Test Condition
Min
Typ.
Max
Unit
Operating supply voltage
*
VDD
⎯
⎯
2.0
⎯
4.0
V
Oscillation frequency
*
fOSC
⎯
⎯
400
⎯
800
kHz
“H” level
VIH1
⎯
(Except RST )
VDD ×
0.7
⎯
VDD
“L” level
VIL1
⎯
(Except RST )
0
⎯
VDD ×
0.3
“H” level
VIH2
⎯
( RST )
VDD ×
0.8
⎯
VDD
“L” level
VIL2
⎯
( RST )
0
⎯
VDD ×
0.2
Min
Typ.
Max
Unit
Input voltage
Input voltage
V
V
DC Characteristics (unless otherwise specified, VDD = 3.0 V, Ta = 25°C)
Symbol
Test
Circuit
Operating supply current
IDD
⎯
fOSC = 455 kHz
⎯
⎯
1.0
MA
Static supply current
IQD
⎯
During “Hold”
⎯
⎯
1.0
µA
Pull-down resistor
RD
⎯
(K0~K7)
100
⎯
400
kΩ
kΩ
Characteristic
RU
⎯
( RST )
25
⎯
100
“H” level
IOH
⎯
(TXOUT) VOH = 1.5 V
−10
⎯
⎯
“L” level
IOL
⎯
(TXON) VOL = 1.5 V
5
⎯
⎯
ILI
⎯
VIN = VDD, VSS
−1.0
⎯
1.0
Pull-up resistor
Output current
Input leak current
Test Condition
6
mA
µA
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TC9243APG/AFG
Application Circuit
Note 4: Ceramic oscillator CSB455E (Murata Seisakusho)
FCR455K3 (TDK)
C1 = C2 = 100 pF
R = 6.8 kΩ
C1 = C2 = 220 pF
R = 2.2 kΩ
or equivalent
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TC9243APG/AFG
Package Dimensions
Weight: 1.4 g (typ.)
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TC9243APG/AFG
Package Dimensions
Weight: 0.48 g (typ.)
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TC9243APG/AFG
The following conditions apply to solderability:
• Solderability
(1) Use of Sn-63Pb solder bath
· solder bath temperature = 230°C
· dipping time = 5 seconds
· number of times = once
· use of R-type flux
(2) Use of Sn-3.0Ag-0.5Cu solder bath
· solder bath temperature = 245°C
· dipping time = 5 seconds
· number of times = once
· use of R-type flux
RESTRICTIONS ON PRODUCT USE
030619EBA
• The information contained herein is subject to change without notice.
• The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA for any infringements of patents or other rights of the third parties which
may result from its use. No license is granted by implication or otherwise under any patent or patent rights of
TOSHIBA or others.
• TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc..
• The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer’s own risk.
• The products described in this document are subject to the foreign exchange and foreign trade laws.
• TOSHIBA products should not be embedded to the downstream products which are prohibited to be produced
and sold, under any law and regulations.
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