UM3758 Series --z= --A m--w- I’ri-Siate Programmahle Encoder/Decoder PRELIMINARY Features codes used as data Codes or as internal addresses by mask Option m Internal address code is lSbii, ie 3 ‘5 387,428, 489 different ccdes at most m Decoder has 8-bit latch data m Series 1C for various applications n UM3758120A pin outcompatibleto UM3750 m Single-Chip CMOS construction m Single-Chip encoder/decoder selected by jump wire m Wide operating voltage range : VDO = 3 to 12 Volts . Built-in RC oscillator (tan use 5 % resistor) n E a s y interface with RF, Infrared(lR) and Ultrasonic transmission media n Tri-state(0, 1, open) address codes, some of address General Description According to the following information, The intern a l a d d r e s s b i i s , 1 8 bis/24pin and 12 biis/lEpin package, tan be assigned by customer in advance for much higher securii and confidentialii. Whenever t h e a d d r e s s Codes of transmitter t r a n s m i t s , t h e receiver will check the address codes with his own and the successive two matched address codes will generate a low pulse. If there were any data bits, the receiver will latch these data bis at the corresponding pins for controlling. The UM3758 series are Single-Chip programmable encoder /decoder ICs fabricated i n C M O S s t r u c t u r e f o r l o w power consun$ion: They are enhanced for new Stage encoder/decoder ICs to provide many more combinations for higher security. Most fzmbinations are achieved by UM3758-18OA, providing 3 = 387,420,489 combinations. Some ICs of this series provide 4 to 8 data bits for controlling. Pin Configurations ., - ._. 1 UM3758 Series Pin Configurations (Continued) VDD TX/RX OUT RX INP IWDE “SS osc Cl17 F116 I Fl15 02 ~VDD Ft2 VDD e3 fl3 TX/RX Cl4 w RX INP 635 RS MODE Cl6 c16 vss A8 Cl8 0% R9 A9 RIO Cl17 AID D2 ca16 Fl12 NC OUT 01s NC NC Absolute Maximum Ratings* *Comments Power Supply Voltage . . . . . . . . . .-0.3V to 11V Operating Temperature . . . . . . . . .-20C to 70% Storage Temperature (Tstg) . . . . . 55°C to 150°C Apply Voltage on any Pin . . . . . . . . . . . . . . VSS - 0.3 < VIN < VOD + 0.3 Stresses above those listed under “Absolute Maximum Ratings’ may cause permanent darnage to the device. These are stress ratings only. Functional Operation of this device at these or any other conditions above those indicated in the operational sections of this specification is not implied and exposure to absolute DC Electrical Characteristics ( TA = 25°C , VDD = 9 Volts , VSS = OV unless otherwise specified) Parameter Symbol Operating voltage VDD Operating current lop - Schmitt Trigger input level Vsh Vsl 6 - - 2 V V HIGH LOW Other pins input level Vih Vil 8.5 0 - 9 0.5 V v HIGH LOW Output pin logic level Voh Vol 8.5 0 9 1 V v HIGH LOW DATA output current HIGH level LOW level lohd lold 9 9 Min. T YP. Max. Unit 12 3.0 1.2 Conditions V mA V DD = 12V Voh = 6V Vol = 6V mA mA .“. .- 2 . ...,. ..~., : ..:%.h <,.,</L .,.. ‘.‘;;>;:..;:;:. ._. UM3758 S e r i e s DC Electrical Characteristics (Continued) Parameter Symbol TX/RX OUTputcurrent HIGH level LOW level Min. loht F Max. Unit mA mA 35 15 IOR Operating frequency TYP. ‘- 160 KHz , Conditions VOD = 12V Voh = 6V Vol = 6V + 15% exclusive of external part Pin Descriptions 1. UM3758-1 SOA/AM, UM37584 20A and UM3758-120AM Pin Number UM3758 UM3758 -18OA -120A UM3758 -120AM Descripti.on Designation /AM 1 Al Address select line 1 is tri-state indicated as 0, 1 and open 2 1 1 A2 Address select line 2 is tri-state indicated as 0, 1 and open 3 2 2 A3 Address select line 3 is tri-state indicated as 0, 1 and open 4 3 3 A4 Address select line 4 is tri-state indicated as 0, 1 and open 5 4 4 A5 Address select line 5 is tri-state indicated as 0, 1 and open 6 5 5 A6 Address select line 6 is tri-state indicated as 0, 1 and open A7 Address select line 7 is tri-state indicated as 0, 1 and open A8 Address select line 8 is tri-state indicated as 0, 1 and open 7 8 6 9 7 6 7 1 Ag 1 10 and Address select line 10 is tri-state indicated as 0, 1 open and Address select line 11 is tri-state indicated as 0, 1 open 8 8 1 A10 1 11 and Address select line 9 is tri-state indicated as 0, 1 open - 1 A1’ / -L ,. 3 -_ U M 3 7 5 8 Wies == ==-SV --------.m--L-a-4 -w-wg aD Pin Descriptions (Continued) Pin Number UM3758 UM3758 UM3758 -12OA -120AM -18OA Description Designation /AM 12 9 13 - Al2 Address select line 12 is tri-state indicated as 0, 1 and open 10 NC No connection 11 NC Noconnection - Al3 Address select line 13 is tri-state indicated as 0, 1 and open Al4 Address select line 14 is tri-state indicated as 0, 1 and open 14 - 15 10 12 Al5 Address select line 15 is tri-state indicated as 0, 1 and open 16 11 13 Al6 Address select line 16 is tri-state indicated as 0, 1 and open 17 12 14 Al7 Address select line 17 is tri-state indicated as 0, 1 and open - Al8 Address select line 16 is tri-state indicated as 0, 1 and open 16 .-. 9 - 19 13 15 osc R.C. input pin for Single pin oscillator. A resistor is connected from this pin to VDO and a capacitor to Vss 20 14 16 vss The ground pin for UM3756 21 15 17 MODE This pin is used to select transmit or receive mode MODE - VDO : Encoder mode ‘*’ MODE - Vss : Decoder mode 22 16 18 23 17 19 24 18 20 RXINP TX/RX OUT VDD Receiver input pin. Receives waveform from the detect circuit In encoder mode, this pin will transmit waveform; in decoder mode, this pin will switch to LOW if comparison is OK The positive power supply of UM3756 4 UM3758 Series 2. UM3758=108A/B/AM/BM, UM3758-084A/B and UM3758-084AM/BM iM3756 ‘~~ D e s i g n a 108A/B t i o Description n hM/SM 1 - I - l A’ Address select line 1 is tri-state indicated as 0, 1 and open Address select line 2 is tri-state indicated as 0, 1 and open Address select line 3 is tri-state indicated as 0, 1 and open Address select line 4 is tri-state indicated as 0, 1 and open 5 Address select line 5 is tri-state indicated as 0, 1 and open 6 A d d r e s s select line 6 is triistate indicated as 0, 1 and open 7 Address select line 7 is tri-state indicated as 0, 1 and open a Address select line 8 is tri-state indicated as 0, 1 and open 9 A d d r e s s <select line 9 is tri-state indicated as 0, 1 and open 10 a 8 1 11 12 9 9 .- Al0 Address select line 10 is tri-state indicated as 0,l and open Dl Data output pin 1, states are either HIGH (1 or open) or LOW (0) Di Data output pin 2, states are either HIGH (1 or open) or LOW (0) 5 :.. . . . . .._ “.iI‘. ‘:’ ~;:;:;:.:>i;&;‘: ‘, .,.<’ :: :,i,i:;::.;+: Pin Descriptions (Continued) Pin Number JM3758 U M 3 7 5 8 U M 3 7 5 8 -108A/B - 0 8 4 -084AM tAM/BM A/B /BM - 13 Description Designation 10 NC Noconnection 11 NC No connection - D3 Data output pin 3, states are either HIGH (1 or open) or LOW (0) 14 - - D4 Data output pin 4, states are either HIGH (1 or open) or LOW (0) 15 10 12 D5 Data output pin 5, states are either HIGH (1 or open) or LOW (0) 16 11 13 D6 Data output pin 6, states are either HIGH (1 or open) or LOW (0) 17 12 14 D7 Data output pin 7, states are either HIGH (1 or open) or LOW (0) 18 - Da Data output pin 6, states are either HIGH (1 or open) or LOW (0) 19 13 15 osc R.C. input pin for Single pin oscillator. A resistor is connected from this pin to VDO and a capacitor to Vss 20 14 16 vss The ground pin for UM3756 21 15 17 MODE This pin is used to select transmit or receive modes MODE - VDO : Encoder mode MODE - Vss : Decoder mode 22 16 ia RXINP Receiver input pin. Receives waveform from the detect circuit 23 17 19 TX/RX OUT In encoder mode, this pin will transmit waveform; in decoder mode, this pin will switch to LOW if comparison is OK 24 18 20 VDD The positive power supply of UM3756 - ._. 6 * U M 3 7 5 8 Sedes sc =-emm-w e m --e-m -a-w- z ei!iD Functional Description pulses (see Fig. 1). A logic zero is encoded as two c o n s e c u t i v e l o n g pulses, a logic one as two consecutive short pulses and an open as a long pulse followed by a short pulse. Esch transmitted data bit is encoded into logic Zero or one and the data pulse is the Same as the address pulse (see Fig. l), ie., the state of data pin is either one or Zero. The data is one when connected to VDO or open and Zero when connected to Vss. General The operating mode of the UM3756 series is controlled by the MODE pin. When the ‘MODE’ pin is connected to V DO the circuit will automatically switch to encoder mode, then ‘TX/RX OUT’ pin acts as data out pin and ‘RX INP” pin act as an idle pin. When ‘MODE’ pin is connected to Vss the circuit will switch to decoder mode, then ‘TX/RX OUT” pin will switch to LOW if comparison is OK, otherwise this pin will keep HIGH, and “RX/INP’ receives waveform from detect circuit. The UM3756160A samples the 18 bit tri-state address a n d encodes this parallel address data for transmitting. These 16 address pins may ,Se in either of three states (0, 1, open) allowing 3 = 367,420,469 possible combinations then $e UM3758120A provides 12-bit address and allows 3 = 531,441 possible combinations. Encoder Mode The encoder mode is selected by connecting “MODE pin to Voo. The transmit sequence is initiated by the power connection and continuously transmits till power down. Esch transmitted address bit is encoded into address Part Number Address Bits The UM37561 06A/B and UM375&064A/B provide address bi and data bits, as described in Table 1. Address Combinations Data Bits Data Combinations UM37561 06A/ B/AM/BM 10 59,049 8 256 UM3756-064A/ B/AM/BM a 6,561 4 16 Table 1 Decoder Mode (ex. UM375&106A/B) are assumed to be address bi. If the address bits match the address bits from detect circuit, the next eight data bits are stored and matched to the last valid data stored. When the second word with data is received, the address bis must match again, and if it does, the data bits are checked against the previous stored data biis. If the two words (eight bits data each) of data match, the data is transferred to the output data pins (Dl, D2 to DE!). If the decoder is momentary type, the data pins will latch the data till the ‘TX/RX O U T ’ p i n switches to HIGH; for latch decoder, the data pins will latch the data till the next valid data appears (see Fig. 3-2). Although the address bits .are tristate (0, 1, open), the data information must be either one or Zero. An open state will be decoded as a logic one. The above table (Table 1) also describes ,, ._ ___ these (decoder with data). The decoder mode is selected by connecting “MODE” pin to vss. The decoder receives the serial data from the detect circuit and outputs the comparison result or data, if it is valid. The received data may inolude two types - without data and with data. For decoder without data ICs, such as UM375616OA and UM3756120A the address word is examined bit by bit as received; if two successive address words match the address bis of Decoder, the “TX/RX OUT” pin will switch to LOW and t-wo successive unmatched address words will cause ‘TX/RX OUT” pin to return to HIGH (see Fig. 3-l). .. For decoder with data IC, such as UM375&106A/B and UM375&064A/B, the address word with data word are examined bit by bi as received. The first 10 bits 7 .,. .;\..:.: o.:... :’ - g U M 3 7 5 8 Series - ==- ZE E-W -=-es_ Timing Waveforms Tri-State Encoded Pulses I F/16 I I Fig. I I 1 Encoder Mode t TX/RX OUT 10.- t 1 SPRCE 1 SI 10. em* 1 DFITF\ 1 SPFICE 1 SI Fig. 2 Fig. 3 -1 Decoder Mode (without data) : 8 DQTF\ 1 SPRCE 1 SI U M 3 7 5 8 Sedes Timing Waveforms (Continued) Decoder Mode (with data) : RX INC TX/RX OUT I ORT53 CLRTCH TYPE> NoTE LAST DF(TA X : (as, - I DATR URTCHED RDDRESS “IT” DFITR : I(RTCHED ADDRESS WITH DATR’ ; cso>- omCl* x uNdarcHE NITH DC,TA RDDRESS ; “NMfiTCHED RDDRESS WITH DflTI’ Fig. 3 -2 UM3758 Operation Flowchart (without data bit) ~~~ STOP TRLNS”ITTINC TX/RE STILL WITCH OUT = HIC” UM3758 Series CE r=- m-s -----e E m m d v---w = UM3758 Operation Flowchart (with data bit) * Note : ForlATCH Type For MOMENTARY Type ~ Keep current data All Data fall to LOW * Address MISMATCH INCLUDES ” NO SIGNAL IN ‘. .-. 10 UM3758 Series Application Circuit (without data bit) “DD 0 U : t 2 i10 U 24 YD0 21 WDE 19 9% rooKn UM3758lMA/A# uM3758180A/AM 120 P F ; 23 ,x/Rx OUT Application Circuits (with data bit) (A) Use Three-Contact Pushbutton Q “DD IIODE i00Kn osc 120 PF ; lOaA/B /AM/BM 23 TX/RX 3 - 0”T I Note: ETD 108E - 8-Pin Tri-State DIP switch made by EXCEL CELL ELECTRONIC CO., LTD. IN TAIWAN R.O.C. ETD IlOE - lC-Pin Tri-State DIP switch made by EXCEL CELL ELECTRONIC CO., LTD. IN TAIWAN R.O.C. ,- ._. 11 UM3758 Series Application Circuits (Continued) (B) Use Normal Two-Contact Pushbutton (6) - 1 Appiication Circuit with Data Bit High to Low L U 24 DD 21 ODE 19 sc L1 ?-=v-+w L---IOOKn 1OOKn. L2 17 0 c 120 PF ; 23 X/RX 22 OUT < UM3758408A 18 /B/AM/BM < 18 21 08 m 20 23 TX/RX OUT : m ! _i i OPERFITION : Di. 02, PND DI . . . ..D8 QRE NOR,,F\L FQLLS DEPRESSED; QCT 5 AS LON UHILE DZ, 03...08 HIGH. SN1 1s UILL 01. i (B) - 2 Application Circuit with Data Bit Lowto High VDO -9 , 1 3-4 1~ 1 /B/AM/BM OPERFIITON : DI, 02. ClND I 1 DI . . . ..D8 FALLS DEPRESSED; 20 FICT 12 AS 01. LOH 02, F)RE NORMAL HIGH, UHICE 1s DZ...08 SUI UILL - ._. l UM3758 Sedes IB =-i B-N s-m -m-m--_- -‘-_d -= yG!D l Ordering Inform&ion Part No. Data Addresses Data Output Type Package Type UM375&180A 18 0 - 24L DIP UM3758-18OAM 18 0 - 24L BOP UM37581 08A 10 8 IATCHED 24L DIP UM375&108AM 10 8 IATCHED 24L SOP UM37581 088 10 8 MOMENTARY 24L DIP UM375&108BM 10 8 MOMENTARY 24L BOP UM3758-120A 12 0 - 18L DIP UM3758-120AM 12 0 - 20L SOP UM375&084A 8 4 LATCHED 18LDIP U M3758-084AM 8 4 LATCHED 2OL SOP U M3758-084B 8 4 MOMENTARY 18LDIP UM3758-084BM 8 4 MOMENTARY 2OL SOP ~ 1 3 UM3758 Series Package Information DIP 24L Outline Dimensions unit : inch/mm Dimensions in inch Symbol I ; A 0.210 Max. 5.33 Al 0.010 Min. 0.25 Min. AZ I1 0.155~0.010 1 3.94 r0.25 0.018 +0.004 -0.002 0.46 +O.lO -0.05 BI 0.060 +0.004 1.52 +O.'O -0.05 I 0.25 +O.lO -0.05 1 250TYP (1.270Max.) 1 31.75TYP - l3)02 0.010-0.002 + 0.0°4 C I D EI l I B 1 / 0.550TYP (32.26Max.) (0.562Max.) 1 13.97TYP I el I 0.100*0.010 I I L I 0.130*0.010 / 3.30*0.25 a 00*150 OOQl50 eA 0.655~0035 16 64+0.69 0.090 Max 2.29 Max. s / I 1 (14.27Max.) 2.54r0.25 I I 15.24kO.25 0.6OOiO.010 E I Dimensions in mm I I Note: 1. The max value of dlmenson D includes end flash 2. The dimenslon EI doesn’t include resin fins. 3. The dimension S Includes end flash. 4. All dimensions are based Qn British System. - ._. .1 4 UM3758 Series Package Information unit : inch/mm SOP 24L Outline Dimensions \Ceating Plane t Symbol Dimensions in inch Dimensions in mm A 0.110 Max. 2.79 Max. D 0.606TYP (0.62OMax.) 15.39TYP (1575Max.) F 0 295+0.010 7.49 i- 0.25 El 0.050 i 0.006 1.27kO.15 9.40 NOM el 0.370 NOM HE 1 0.406rO.012 0_._-036 + 0.008 _ 10.31 *0.31 LE 0.055 * 0.006 1.40*0.20 / 0.91 -10.20 S 0.040 Max. 1.02 Max. Y e 0.006 Max. 0.15 Max. 0~~10~ 0~~10~ Note: 1. The max value of dimension D includes end flash. 2. The dimension E doesn’t include resin fins. 3. The dimension el is for PC Board surface mount pad pitch desrgn reference only. 4. The dimension S includes end flash. 5. All dimensions are based on British System. .“. 15 .. UM3758 Series Package Information DIP 18L Outline Dimensions unit : inch/mm E Lid 0 Base Plane Seating Plane IST 1 Symbol 1 I A I Dimensions in inch 1 Dimensions in mm 1 0.175 Max. I 4.45 Max. I AI 0.010 Min. 0.25 Min. AZ 0 130+0.010 3.30+0.25 0 I BI I lI D t E I 0.018 + ‘.0°4 - 0.002 I 0.060 - 0 . 0 0 2 0 . 4 6 +“‘O -0.05 I I 1 . 5 2 +O.‘O -0.05 l 0 . 2 5 +O.‘O - 0.05 I +o.oa C 0.010 1 / 1 0.9OOTYP +0.004 - 0.002 / l (0.920Max) 1 I 22.86TYP 0.300~0.010 (23.37Max.1 7.62 t 0.25 El el 0.250TYP (0262Max.) 6.35TYP(6.65Max.) 0.100*0 010 2.54 f 0.25 3.30i0.25 L 0.130+0.010 a 0~~15~ 00~1.50 eA 0.345 + 0.035 8.76kO.89 S I I 1 0.055 Max. 1 1.40 Max. Note: 1. The max vaiue of dimensloq D includes end flash. 2. The dimenslon Et doesn’t Include resin fins. 3. The dimension S includes end flash. 4. All dimensions are based on British System 16 I U M 3 7 5 8 Sedes P Package Information SOP 20L Outline Dimensions unit : inch/mm DETAIL F el SEE DETAIL F Symbol Dimensions in inch Dimensions in mm 2.69 Max I A 0.106 Max Al 0.004 Min 0.10 Min A2 0.092 +0.005 2.33kO.13 b 0.016 C 0.010 I 0.41 - 0.002 +0004 0.25 - 0.002 +O.lO -0.05 +O.lO -0.05 D 0.504 TYP (0.524 Max) 12.80 TYP (13.31 Max) LE 0.055 f 0.008 1.40 *0.20 S 0.042 Max 1.07 Max v l Note: + 0.004 0 /I 0.006 Max. oo- 100 / / I 1 0.15 Max oo- 100 1. The max value of dimension D includes end flash. 2. The dimensions E doesn’t include resin fins. 3. The dimensron el is for PC Board surface mount pad pitch desrgn reference oniy. 4. The dimensron S includes end flash 5. All dimensions are based on British System. \ > :i .- -_. 17 ‘. UM3758 Series The information appearing in this publication is believed to be accurate. Integrated circuits sold by UMC are covered by the warranty and patent indemnification provisions stipulated in the terms of sale only. UMC makes no warranty, expressed, statutory, implied or by description regarding the information in this publication or regarding the freedom of the described chip from patent infringement. Furthermore, UMC makes no warranty of merchantability or fitness for any purpose. UMC reserves the right to halt production or alter specifications and prices at any time without notice. Accordingly, the reader is cautioned to verify that the data sheets and other information in this publication are current before placing orders. Products described herein are intended for use in normal commercial applications. Apptications which require extended temperature range, unusual environmental requirements, or high reliability applications, e.g. military, medical life-support or life sustaining equipment, are specifically not recommended without additional processing by UMC for such applications. Also, please note that Application Circuits in this document are for reference purposes only. UMC has no sales or Service functions in the U.S.A. and therefore does not intend to sell its products in this market. 18