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TC9243F-TC9243P
INFRARED REMOTE CONTROL SIGNAL TRANSMISSION LSI
TOSHIBA TC9243P/F
TOSHIBA CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TC9243P, TC9243F
INFRARED REMOTE CONTROL SIGNAL TRANSMISSION LSI
The TC9243P, TC9243F are infrared remote control signal TC9243P
transmission LSI which is suited for remote control of
audio system, TV, VTR, CD player, etc.
FEATURES
0 Wide range of operating supply voltages, enabling low
voltage operation.
: VDD = 2.o~4.ov
. . . DlP20-P-300-2.54A
It 32 functions are basically available.
Up to 112 instructions (28x4) can be output because
multiple keying is possible.
TC9243F
0 Interference with other equipment is prevented because
7 bits out of 8 bits of system code are presettable.
0 With transmission display output pin.
a Low current dissipation. : lQDS IPA (at time of standby)
0 Packages in two types ; DIP and flat types are available.
DIP20 : TC9243F Weight
SOP20 : TC9243F DIP20-P-300-2.54A : 1.4g (Typ.)
SOPZO-P-300-1.27 : 0.48g (Typ.)
SOP20-P-300-1.27
PIN CONNECTION
GND[1 20r/DD
x_T[2 19Pxotrr
XT[3 18Pxor:
Frt4 17JCoDE
Kors 160r3
K1[6 15[]T2
K2[7 14[]T1
Kst8 13UT0
Kot9 12[]K7
K5[10 11[]K6
1 2001-06-19
BLOCK DIAGRAM
GND VDD TXOUT TXON
(:? ar, (fah, tia,
x-r . ' Large current 0 CODE
Oscillation output ports
XT circuit T e T3
Output port 6 T2
4bit micro controller
- Timin
RST 4 g . ROM : 768x8 bits @ T1
generator
q RAM : 16x4 bits
Input port (with built-in pull-down resistor)
1J..2 'c?..) e; 49 \11/ 'x1...Y
K2 K3 K4 K5 6 K7
IJ..) \‘3/
K0 K1 K
PIN FUNCTION
PIN No. SYMBOL PIN NAME FUNCTION AND OPERATION
1 GND P T . I A li s I Ita (V 2 0 40V)
S . = . -- .
20 VDD ower ermma pp It? upp y vo ge DD
2 Fr Input/output terminals for the ceramic
Oscillator Terminal oscillators, with built-in amplifier circuit and
3 XT feedback resistor.
When this pin is set at "L" level, the inside is
4 RST Reset Input initialized.
With a built-in puII-up resistor.
The input terminals for Key Matrix.
r-12 K0--K7 Key Inputs Each of all the pins has a built-in pull-down
resistor.
The key matrix scan output terminals.
-- T --T
13 16 o 3 Key Scan Output CMOS output.
17 CODE Code Scan Output The scan output terminals for code setting.
Pch open drain output.
. . . Transmission display LED driving output
18 ON Transmission Display Output terminal.
19 TXOUT Transmission Output Infrared LED driving output terminal.
2001 -06-1 9
TOSHIBA TC9243P/F
OPERATIONS
1. Key matrix
The TC9243P, TC9243F enables the setting of maximum 32keys in combination of kty-k7 and TO-T?
keys. Further, System Codes are settable in 7bits in combination of Kty-k6 and CODE keys.
K10 K1 K12 Kla K14 K5 K16 2 Shift keys
----.-- n
f _ f _ f _ f _ f _ f _ f _ f _ I
N K01 1 \ K02 / N K03 1 \ K04 / N K05 1 \ K06 / K07 K08 I T0
h ( h h r h ( l l
\K?91 \K‘IOJ \KH/ "r) \K}3J \Klllj "c-Kr__ie-T1
r _ r _ r _ r _ r _ r _ r _ l r _ I
N K17 I \ K18 / N K19 I \ K20 / \ K21 I \ K22 1 N K23 I ' \ K24 / ' T2
pr , r h pr h r h pr h r h ( l l
N K25 / N K26 / N K27 1 N K28 1 N K29 / \ K30 / 'up-o-ir-S-set- T3
I I I I I I I I I I I I I I L________J
I lo I 5'1 I li? 5'3 I I 't I I ls I I ls I CODE
I I I I
-c)cy- - "Rt : Ke Switch Sn - : System Code
Cl y k Diode Jumper
0 K08, 16, 24 and 32 (the shift key) keys can be pushed simultaneously with other keys (the
normal keys).
However, the simultaneous keying of the shift keys and that of the normal keys are prohibited.
o The system code setting is made by the diode jumper between "CODE" lines and ''K0--K6'' lines.
With diode jumper, data code will become "1".
However, if the setting of "CODE" and ''K0--k6'' keys is only at one point, the keys are
connectable directly without using the diode jumper.
Further, "S7" key is fixed at "1" and cannot be changed.
2. Data fo rm at
System Code System Code Key Data Code Key Data CoHe
(8bit) (8bit) (8bit) (8bit)
A A A A
f 1 f 1 r 1 f ,
So SI - S6 S7 So SI - Sts S7 D0 Dl - De D7 Coo F1 - F, 7
LSB MSB
(Note) "80H--8FH'' out of the system codes are free codes.
These codes are freely usable but they might have been used by other equipment
and therefore, there is the possibility of occurrence of interference.
LSB MSB
S0S1S2S30001
Other system codes have been customized and therefore, their general use is prohibited.
TOSHIBA will assume no responsibility for interference and other problems which may result from
use of other system coded.
3 2001-06-19
TOSHIBA TC9243P/F
3. Key data code
KEY No. Tn Kn D0 D1 D2 D3 D4 D5 D6 D7
K01 K0 1 o o o 0
K02 K1 0 1 o o o
'fe, 2 :1 (11 (1) 3 g o Shift key data
04 To 3 o "ooo" except dual keying.
K05 K4 1 0 1 0 0
K05 K5 0 1 1 0 0
K07 K6 1 1 1 0 0
K08 K7 0 |:lorma|”key data . 1 0 0
ct 00000 except dual keying.
K09 K0 1 0 0 1 0
K10 K1 0 1 0 1 0
[',1,1 2 :1 (1) (13 1 g o Shift key data
K12 T1 K3 1 0 1 1 0 o "000" except dual keying.
K14 K5 0 1 1 1 0
K15 K6 1 1 1 1 0
K16 K7 |:lorma|"key data . 1 1 0
c 00000 except dual keying.
K17 K0 1 0 0 0 1
K18 K1 0 1 0 0 1
:19 2 (1) :1 (1) 3 1 o Shift key data
20 T2 3 o "ooo" except dual keying.
K21 K4 1 o 1 o 1
K22 K5 0 1 1 O 1
K23 K6 1 1 1 0 1
K24 K7 0 Elormalukey data . 1 0 1
It 00000 except dual keying.
K25 K0 1 O 0 1 1
K26 K1 0 1 0 1 1
:27 2 :1 (1) (13 1 1 o Shift key data
K28 T3 2 1 0 1 1 1 o "000" except dual keying.
K30 K5 0 1 1 1 1
K31 K6 1 1 1 1 1
K32 K7 lltlormalnkey data . 1 1 1
c 00000 except dual keying.
It Normal key : K01--K07, K09-K15, K17--K23, K25--K31
o Shift key : K08, K15, K24, K32
4 2001-06-19
TOSHIBA
4. TXOUT output wave form
Key ON
TC9243 P/F
[ghout 38msiu
Data transmission wave form
about 108ms
Continuous transmission wave form
about 108ms
(*) In case of fosc=455kHz
Data transmission wave form
Reader Pulse System Code System Code Key data code Key data code
I I I I I l l l l I
l, 820Tm l 2a l 2456Tm J
I" T "T" "l
0 1 1 0 1
III I IIJI IL
- 410Tm 410Tm l 51Tm
co-l,,, 205T,“l
102T,“I
Continuous transmission wave form
410Tm l 410Tm L51Tm
820Tm 205Tm
In case of SO=0
I, (50=1 : 102Tm)
Carrier wave form
Reader Pulse : 410Tm, Data Pulse : 51Tm
Tm=5/fosc : System clock
a : System code output time
fc=fosc/12
When oscillation frequency is 455kHz, signal is output after pulse modulated by 37.9kHz of duty 1/
3, which is a 1/12 division by the carrier generation circuit.
(Caution) In preparing a receiving software, strictly follow the following instructions :
o In case of system codes, the same code is transmitted twice and therefore, always
decode these 2 codes and judge if they agree with each other.
It In case of key data codes, always decode a key data code and its reversed code and
judge if they agree with each other.
5 2001-06-19
TOSHIBA
MAXIMUM RATINGS (Ta = 25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage VDD - 0.3--5.0 V
Input Voltage VIN VSS-O.3~VDD+0.3 V
Output Current 'OUT - 20 mA
Power Dissipation PD 350 (300) .)rd. mW
Operating Temperature Topr - 20~75 "C
Storage Temperature Tstg - 40--125 °C
)r.1(. The value shown in parentheses applies to the TC9243F.
ELECTRICAL CHARACTERISTICS
Recommended operating conditions
TC9243 P/F
(Unless otherwise specified, VDD=3.0V, Ta =25°C, For items with an asterisk .y.4, Ta = -20-75oC)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Operating Supply Voltage .yd. VDD - - 2.0 - 4.0 V
Oscillation Frequency yd. fOSC - - 400 - 800 kHz
"H" Level V|H1 - (Except ItiT) "e, 7 - VDD
Input Voltage . VDD V
"L" L I V - E AW- -
eve ILI ( xcept S ) 0 x0.3
_......-........... V
"H" Level VIHZ - (RST) DxDO 8 - VDD
Input Voltage . V
"L" L I V - R T -
eve IL2 ( S ) 0 X0.2
DC characteristics (Unless otherwise specified, VDD=3.0V, Ta =25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Operating Supply Current IDD - fosc=455kH2 - - 1.0 mA
Static Supply Current IQD - At time of "Hold" - - 1.0 pA
Pull-down Resistor RD - (K0--K7) 100 - 400 k0
Pull-up Resistor RU - (Arr) 25 - 100 k0
"H" Level IOH - (TXOUT) VOH = 1.5V - 10 - -
Output Current "L" Level IOL - (TXON) VOL=1.5V 5 - - mA
Input Leak Current ILI - VIN =VDD, I/SS - 1.0 - 1.0 pA
6 2001-06-19
TOSHIBA TC9243P/F
APPLICATION CIRCUIT
25C2710—Y
TXOUT TXON CODE
, TC9243P, TC9243F
Q) 5 6 ii
VDD=3 . 0V
_+_|—u
HSD—CSD—C 1‘
.)it. Ceramic Oscillator CSB455E (Murata Seisakusho) C1=C2=100pF R=6.8kQ
FCR455K3 (TDK) c1: c2 =220pF R=2.2kQ
or equivalent
r-o'Rt
"i)- - l : Key switch
-io- - E .' Diode jumper for system code setting
7 2001-06-19
TOSHIBA TC9243P/F
PACKAGE DIMENSIONS
DlP20-P-300-2.54A Unit : mm
0—01 5°
Y'"---''--'''-'''''',-?
25.1 MAX ,
24.6:02 d
3.13:0.3
0.87TYP
Weight : 1.49 (Typ.)
8 2001-06-19
TOSHIBA
PACKAGE DIMENSIONS
SOP20-P-300-1.27
'ihiiripas/s1r------r--""
: 5.3:02
7 3:0 3
lrlhrlrleljljljrL___.._...a._,
0.685TYP =
13.3MAX
0.4 i0.1 *
Weight : 0.48g (Typ.)
ti?, E
tip-dr."
T"",, 1-
TC9243 P/F
Unit : mm
(300mil)
(3-15—0255
-. I 0.23:0.2
2001 -06-1 9
TOSHIBA TC9243P/F
RESTRICTIONS ON PRODUCT USE
000707EBA
OTOSHIBA 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..
OThe 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.
0 The products described in this document are subject to the foreign exchange and foreign trade
OThe information contained herein is presented only as a guide for the applications of our
products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of
intellectual property or other rights of the third parties which may result from its use. No
license is granted by implication or otherwise under any intellectual property or other rights of
TOSHIBA CORPORATION or others.
0 The information contained herein is subject to change without notice.
10 2001-06-19
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