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IR117 RS-1 TM Remote Control IC
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| Transmitter IC with Free Customer IC Code |
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| Features |
- RS1 TM long-range IR protocol - 10m minimum indoor range
- No crystal or resonator needed - nor timing resistors or capacitors
- No crystal or resonator needed -nor timing
- Minimal support components – a complete 32-key remote requires a total of 8 components (excluding the key matrix and batteries)
- Supports up to 56 keys with the addition of 6 diodes
- Transmit LED indicator
- Backlight control output - keeps backlight lit for 60 seconds
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- Over 65,000 unique manufacturer/product ID codes available
- Very small footprint – industry standard 150mil SOIC
- Advanced signal multiplexing yields a very small device - just 14 pins
- Less than 200nA sleep current
- Electrically quiet – no clock nor keypad scanning during sleep
- Extended industrial temperature range: -40°C to +125°C
- Extended supply range: 2.0V to 5.5V
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| DESCRIPTION |
The IR117 is a state-of-the-art controller IC for handheld remote controls. Utilizing a precision, on-chip oscillator it needs no external crystal, resonator or other clock source. The IR117 includes internal pull-up resistors to eliminate even more compents that are needed for typical remote control ICs. In fact, a complete 32-key remote control can be constructed with just 8 components (excluding the keypad matrix and battery contacts). The IR117 is a very low power, electrically quiet device dissipating just 500nW when waiting for keypresses. In this state, the on-chip oscillator is stopped to reduce noise and further reduce power consumption. When sending it dissipates just 450uW. This means extremely long battery life even when operating with small battery cells; for example: a pair of AAA cells.
The IR117 uses the RS-1TM infrared communications protocol to for long distance, accurate transmission of keypress information. A range of 10m indoors is achievable even with inexpensive driver transistors and IR emitters. The RS-1TM
protocol has been designed to allow for over 65,000 unique manufacterer and/or product IDs. Other popular IR protocols as well as custom protocols are also available. Please call for details
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| ORDERING INFORMATION |
IR117D Standard Version, 14-pin DIP (300mil)
IR117SO Standard Version, 14-pin SOIC (150mil)
Availability: NOW
Standard version ships with manufacterer's ID code of 0x0101. Contact the sales office to obtain a unique ID code. |
Infrared Remote Solutions, Inc
229 Lafayette Drive
Syosset, New York 11791
516.364.9803 sales
516.364.9807 fax
sales@infraredremote.com |
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Pin Assignment
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Pin |
Signal |
Type |
Description |
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1 |
VDD |
Power |
Positive supply |
| 2 |
SC6/BKL |
Output |
Scan/Backlight driver |
| 3 |
SE3 |
Input |
Scan Input |
| 4 |
SE2 |
Input |
Scan Input |
| 5 |
SC5 |
Output |
Scan driver |
| 6 |
SC4 |
Output |
Scan driver |
| 7 |
SC3/LEDL |
Output |
Scan/LED Driver |
| 8 |
SC2 |
Output |
Scan driver |
| 9 |
SC1 |
Output |
Scan driver |
| 10 |
SC3/LEDH |
Output |
Scan/LED Driver |
| 11 |
SC7/IR |
3-state |
Scan/IR Driver |
| 12 |
SE1 |
Input |
Sense input |
| 13 |
SE0 |
Input |
Sense input |
| 14 |
VSS |
Power |
Negative supply |
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| Signal Description |
SE0 through SE3 are keypad sense inputs. They are low-true. Each has an internal pull-up resistor in the range of approximately 20K ohms.
SC1, SC2, SC4 and SC5 are keyscan outputs. They are driven low while waiting for a keypress. When a keypress is detected, these outputs are cycled to detect which key has been pressed.
SC0 and SC3 are keyscan outputs and LED drivers. They are diven low while waiting for a keypress. They are cycled during keypress detection. During the IR output phase, these output drive an LED to indicate IR transmission.
SC6/BKL is a keyscan output and backlight driver. It is low while waiting for a keypress. It is cycled with the other keyscan signals to detect which key has been pressed. When not scanning keys, this output controls the optional backlight.
SC7/IR is a key a keyscan output and IR emitter driver. It is low while waiting for a keypress. It is cycled with other keyscan signals to detect which key has been pressed. After a keypress has been detected, this signal drives the IR emitter. |
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| Key Matrix Map |
Key
Input
Output
Key
Input
Output
Key |
Input |
Output |
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Key |
Input |
Output |
KEY1 |
SE0 |
SC0 |
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KEY29 |
SE0 |
SC7 |
KEY2 |
SE1 |
SC0 |
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KEY30 |
SE1 |
SC7 |
KEY3 |
SE2 |
SC0 |
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KEY31 |
SE2 |
SC7 |
KEY4 |
SE3 |
SC0 |
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KEY32 |
SE3 |
SC7 |
KEY5 |
SE0 |
SC1 |
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KEY33 |
SE0+SE3 |
SC0 |
KEY6 |
SE1 |
SC1 |
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KEY34 |
SE1+SE2 |
SC0 |
KEY7 |
SE2 |
SC1 |
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KEY35 |
SE0+SE2 |
SC0 |
KEY8 |
SE3 |
SC1 |
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KEY36 |
SE0+SE3 |
SC1 |
KEY9 |
SE0 |
SC2 |
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KEY37 |
SE1+SE2 |
SC1 |
KEY10 |
SE1 |
SC2 |
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KEY38 |
SE0+SE2 |
SC1 |
KEY11 |
SE2 |
SC2 |
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KEY39 |
SE0+SE3 |
SC2 |
KEY12 |
SE3 |
SC2 |
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KEY40 |
SE1+SE2 |
SC2 |
KEY13 |
SE0 |
SC3 |
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KEY41 |
SE0+SE2 |
SC2 |
KEY14 |
SE1 |
SC3 |
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KEY42 |
SE0+SE3 |
SC3 |
KEY15 |
SE2 |
SC3 |
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KEY43 |
SE1+SE2 |
SC3 |
KEY16 |
SE3 |
SC3 |
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KEY44 |
SE0+SE2 |
SC3 |
KEY17 |
SE0 |
SC4 |
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KEY45 |
SE0+SE3 |
SC4 |
KEY18 |
SE1 |
SC4 |
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KEY46 |
SE1+SE2 |
SC4 |
KEY19 |
SE2 |
SC4 |
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KEY47 |
SE0+SE2 |
SC4 |
KEY20 |
SE3 |
SC4 |
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KEY48 |
SE0+SE3 |
SC5 |
KEY21 |
SE0 |
SC5 |
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KEY49 |
SE1+SE2 |
SC5 |
KEY22 |
SE1 |
SC5 |
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KEY50 |
SE0+SE2 |
SC5 |
KEY23 |
SE2 |
SC5 |
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KEY51 |
SE0+SE3 |
SC6 |
KEY24 |
SE3 |
SC5 |
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KEY52 |
SE1+SE2 |
SC6 |
KEY25 |
SE0 |
SC6 |
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KEY53 |
SE0+SE2 |
SC6 |
KEY26 |
SE1 |
SC6 |
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KEY54 |
SE0+SE3 |
SC7 |
KEY27 |
SE2 |
SC6 |
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KEY55 |
SE1+SE2 |
SC7 |
KEY28 |
SE3 |
SC6 |
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KEY56 |
SE0+SE2 |
SC7 |
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| Electrical Characteristics |
| Absolute Maximum Ratings |
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Parameter
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Value |
Temperature, Ambient
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-40°C to +125°C |
Temperature, Storage
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-65°C to +150°C |
Vdd (with respect to Vss)
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+7.0V |
Inputs (with respect to Vss)
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-0.3V to (VDD + 0.3V) |
Total Power Dissipation
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500mW |
Maximum Supply Current
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150mA |
Input Clamp Current
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±20mA |
Output Clamp Current
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±20mA |
Maximum Output Current (sourced)
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25mA |
Maximum Output Curreint (sunk)
|
25mA |
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| DC Characteristics |
Charateristic
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Symbol
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Min
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Typ
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Max
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Unit |
Operating Temperature
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Top |
-40 |
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125.0 |
°C |
Operating Voltage
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VDD |
2.0 |
|
5.5 |
V |
| Supply Current, Sending |
IDD |
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TBD |
uA |
| Supply Current, Sleeping |
IDDS |
|
180.0 |
TBD |
nA |
Input Low Voltage
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VIL |
|
200.0 |
0.8 |
V |
Input High Voltage
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VIH |
VSS |
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VDD |
V |
Input Leakage Current
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IIL |
2.0 |
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±1.0 |
uA |
Output Low Voltage
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VOL |
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0.6 |
V |
Output High Voltage
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VOH |
VDD-0.7 |
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V |
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| AC Characteristics |
Charateristic
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Symbol
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Min
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Typ
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Max
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Unit |
| Wake From Sleep |
TWAKE |
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50 |
|
u3 |
| Keypad Scan and Debounce |
TSCAN |
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10 |
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mS |
| IR Packet Transmit Time |
TSEND |
34.3 |
|
46.3 |
mS |
| IR Packet Repeat Interval |
TRPT |
98 |
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102 |
mS |
| Sleep Timeout (after last keypress) |
TSLP |
|
60 |
|
S |
| Backlight Timeout(after last keypress) |
TBKL |
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60 |
|
S |
| IR Carrier Frequency |
IRF |
|
38 |
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KHz |
| IR Carrier Duty Cycle |
IRDUTY |
|
50 |
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% |
Copyright © 2005 Infrared Remote Solutions, Inc. |
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