Freescale Semiconductor Technical Data MC145026/D Rev. 4, 1/2005 MC145026, MC145027 MC145028 16 16 MC145026, MC145027, MC145028 1 1 P Suffix Plastic DIP Case 648 Encoder and Decoder Pairs CMOS D Suffix SOG Package Case751B 16 1 DW Suffix SOG Package Case 751G 1 Introduction Ordering Information These devices are designed to be used as encoder/decoder pairs in remote control applications. The MC145026 encodes nine lines of information and serially sends this information upon receipt of a transmit enable (TE) signal. The nine lines may be encoded with trinary data (low, high, or open) or binary data (low or high). The words are transmitted twice per encoding sequence to increase security. The MC145027 decoder receives the serial stream and interprets five of the trinary digits as an address code. Thus, 243 addresses are possible. If binary data is used at the encoder, 32 addresses are possible. The remaining serial information is interpreted as four bits of binary data. The valid transmission (VT) output goes high on the MC145027 when two conditions are met. First, two addresses must be consecutively received (in one encoding sequence) which both match the local address. Second, the 4 bits of data must match the last valid data received. The active VT indicates that the information at the Data output pins has been updated. Device Package MC145026P Plastic DIP MC145026D SOG Package MC145027P Plastic DIP MC145027DW SOG Package MC145028P Plastic DIP MC145028DW SOG Package Contents 1 2 3 4 5 6 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Electrical Specifications . . . . . . . . . . . . . . . . 4 Operating Characteristics . . . . . . . . . . . . . . . 8 Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . 9 MC145027 and MC145028 Timing . . . . . . . . 16 Package Dimensions . . . . . . . . . . . . . . . . . . 18 Freescale reserves the right to change the detail specifications as may be required to permit improvements in the design of its products. © Freescale Semiconductor, Inc., 2005. All rights reserved. Introduction The MC145028 decoder treats all nine trinary digits as an address which allows 19,683 codes. If binary data is encoded, 512 codes are possible. The VT output goes high on the MC145028 when two addresses are consecutively received (in one encoding sequence) which both match the local address. • Operating Temperature Range: - 40 to + 85°C • Very-Low Standby Current for the Encoder: 300 nA Maximum @ 25°C • Interfaces with RF, Ultrasonic, or Infrared Modulators and Demodulators • RC Oscillator, No Crystal Required • High External Component Tolerance; Can Use ± 5% Components • Internal Power-On Reset Forces All Decoder Outputs Low • Operating Voltage Range: MC145026 = 2.5 to 18 V MC145027, MC145028 = 4.5 to 18 V MC145026 ENCODER A1 MC145027 DECODERS VDD A1 MC145028 DECODERS VDD A1 VDD A6 A2 Dout A2 D6 A2 A3 TE A3 D7 A3 A7 A4 RTC A4 D8 A4 A8 A5 CTC A5 D9 A5 A9 VT R2/C2 A6/D6 RS R1 VT R1 A7/D7 A9/D9 C1 R2/C2 C1 VSS A8/D8 VSS Din VSS Din Figure 1. Pin Assignments MC145026, MC145027, MC145028 Technical Data, Rev. 4 2 Freescale Semiconductor Introduction RS 11 TE RTC 12 CTC 13 3-PIN OSCILLATOR AND ENABLE 14 DATA SELECT AND BUFFER ÷4 DIVIDER 15 DOUT RING COUNTER AND 1-OF-9 DECODER 9 8 7 6 5 4 3 2 1 1 A1 2 A2 3 A3 4 A4 5 A5 TRINARY DETECTOR 6 A6/D6 7 A7/D7 VDD = PIN 16 VSS = PIN 8 9 A8/D8 10 A9/D9 Figure 2. MC145026 Encoder Block Diagram CONTROL LOGIC SEQUENCER CIRCUIT 5 A1 A2 A3 A4 A5 4 3 2 15 14 LATCH 4-BIT SHIFT REGISTER 11 13 12 VT D6 D7 D8 D9 1 1 2 DATA EXTRACTOR 3 9 Din 4 5 C1 7 6 10 R1 C2 VDD = PIN 16 VSS = PIN 8 R2 Figure 3. MC145027 Decoder Block Diagram MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 3 Electrical Specifications 11 CONTROL LOGIC VT SEQUENCER CIRCUIT 9 A1 A2 A3 A4 A5 A6 A7 A8 A9 8 7 6 5 4 3 2 1 1 9-BIT SHIFT REGISTER 2 3 4 5 9 DATA EXTRACTOR 15 C1 14 7 R1 6 10 13 C2 Din VDD = PIN 16 VSS = PIN 8 R2 12 Figure 4. MC145028 Decoder Block Diagram 2 Electrical Specifications Table 1. Maximum Ratings* (Voltages Referenced to VSS) Ratings Symbol Value Unit DC Supply Voltage VDD - 0.5 to + 18 V DC Input Voltage Vin - 0.5 to VDD + 0.5 V DC Output Voltage Vout - 0.5 to VDD + 0.5 V DC Input Current, per Pin Iin ± 10 mA DC Output Current, per Pin Iout ± 10 mA Power Dissipation, per Package PD 500 mW Storage Temperature Tstg - 65 to + 150 °C TL 260 °C Lead Temperature, 1 mm from Case for 10 Seconds * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the limits in the Electrical Characteristics tables or Pin Descriptions section. This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, Vin and Vout should be constrained to the range VSS ≤ (Vin or Vout) ≤ VDD. MC145026, MC145027, MC145028 Technical Data, Rev. 4 4 Freescale Semiconductor Electrical Specifications Table 2. Electrical Characteristics - MC1450261, MC145027, and MC145028 (Voltage Referenced to VSS) Guaranteed Limit Symbol - 40°C 25°C 85°C Unit Min Max Min Max Min Max VOL Low-Level Output Voltage (Vin = VDD or 0) 5.0 10 15 - 0.05 0.05 0.05 - 0.05 0.05 0.05 - 0.05 0.05 0.05 V VOH High-Level Output Voltage (Vin = 0 or VDD) 5.0 10 15 4.95 9.95 14.95 - 4.95 9.95 14.95 - 4.95 9.95 14.95 - V VIL Low-Level Input Voltage (Vout = 4.5 or 0.5 V) (Vout = 9.0 or 1.0 V) (Vout = 13.5 or 1.5 V) 5.0 10 15 - 1.5 3.0 4.0 - 1.5 3.0 4.0 - 1.5 3.0 4.0 (Vout = 0.5 or 4.5 V) (Vout = 1.0 or 9.0 V) (Vout = 1.5 or 13.5 V) 5.0 10 15 3.5 7.0 11 - 3.5 7.0 11 - 3.5 7.0 11 - (Vout = 2.5 V) (Vout = 4.6 V) (Vout = 9.5 V) (Vout = 13.5 V) 5.0 5.0 10 15 - 2.5 - 0.52 - 1.3 - 3.6 - - 2.1 - 0.44 - 1.1 - 3.0 - - 1.7 - 0.36 - 0.9 - 2.4 - (Vout = 0.4 V) (Vout = 0.5 V) (Vout = 1.5 V) 5.0 10 15 0.52 1.3 3.6 - 0.44 1.1 3.0 - 0.36 0.9 2.4 - VIH IOH IOL 1 VDD V Characteristic V High-Level Input Voltage V High-Level Output Current mA Low-Level Output Current mA Iin Input Current - TE (MC145026, Pull-Up Device) 5.0 10 15 - - 3.0 16 35 11 60 120 - - µA Iin Input Current RS (MC145026), Din (MC145027, MC145028) 15 - ± 0.3 - ± 0.3 - ± 1.0 µA Iin Input Current A1 - A5, A6/D6 - A9/D9 (MC145026), A1 - A5 (MC145027), A1 - A9 (MC145028) 5.0 10 15 - - - ± 110 ± 500 ± 1000 - - - - - - 7.5 - - pF µA Cin Input Capacitance (Vin = 0) IDD Quiescent Current - MC145026 5.0 10 15 - - - 0.1 0.2 0.3 - - µA IDD Quiescent Current - MC145027, MC145028 5.0 10 15 - - - 50 100 150 - - µA Also see next Electrical Characteristics table for 2.5 V specifications. MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 5 Electrical Specifications Table 2. Electrical Characteristics - MC1450261, MC145027, and MC145028 (continued) (Voltage Referenced to VSS) Guaranteed Limit Symbol 1 VDD V Characteristic - 40°C 25°C 85°C Unit Min Max Min Max Min Max Idd Dynamic Supply Current - MC145026 (fc = 20 kHz) 5.0 10 15 - - - 200 400 600 - - µA Idd Dynamic Supply Current - MC145027, MC145028 (fc = 20 kHz) 5.0 10 15 - - - 400 800 1200 - - µA Also see next Electrical Characteristics table for 2.5 V specifications. Table 3. Electrical Characteristics - MC145026 (Voltage Referenced to VSS) Guaranteed Limit Symbol VDD V Characteristic - 40°C 25°C 85°C Unit Min Max Min Max Min Max VOL Low-Level Output Voltage (Vin = 0 V or VDD) 2.5 - 0.05 - 0.05 - 0.05 V VOH High-Level Output Voltage (Vin = 0 V or VDD) 2.5 2.45 - 2.45 - 2.45 - V VIL Low-Level Input Voltage (Vout = 0.5 V or 2.0 V) 2.5 - 0.3 - 0.3 - 0.3 V VIH High-Level Input Voltage (Vout = 0.5 V or 2.0 V) 2.5 2.2 - 2.2 - 2.2 - V IOH High-Level Output Current (Vout = 1.25 V) 2.5 0.28 - 0.25 - 0.2 - mA IOL Low-Level Output Current (Vout = 0.4 V) 2.5 0.22 - 0.2 - 0.16 - mA Iin Input Current (TE - Pull-Up Device) 2.5 - - 0.09 1.8 - - µA Iin Input Current (A1-A5, A6/D6-A9/D9) 2.5 - - - ± 25 - - µA IDD Quiescent Current 2.5 - - - 0.05 - - µA Idd Dynamic Supply Current (fc = 20 kHz) 2.5 - - - 40 - - µA MC145026, MC145027, MC145028 Technical Data, Rev. 4 6 Freescale Semiconductor Electrical Specifications Table 4. Switching Characteristics - MC1450261, MC145027, and MC145028 (CL = 50 pF, TA = 25°C) Symbol tTLH, tTHL 1 Characteristic Output Transition Time Figure No. Guaranteed Limit VDD Unit Min Max 5, 9 5.0 10 15 - 200 100 80 ns tr Din Rise Time - Decoders 6 5.0 10 15 - 15 15 15 µs tf Din Fall Time - Decoders 6 5.0 10 15 - 15 5.0 4.0 µs fosc Encoder Clock Frequency 7 5.0 10 15 0.001 0.001 0.001 2.0 5.0 10 MHz f Decoder Frequency - Referenced to Encoder Clock 13 5.0 10 15 1.0 1.0 1.0 240 410 450 kHz tw TE Pulse Width - Encoders 8 5.0 10 15 65 30 20 - ns Also see next Electrical Characteristics table for 2.5 V specifications. Table 5. Switching Characteristics - MC145026 (CL = 50 pF, TA = 25°C) tTLH, tTHL fosc tw Guaranteed Limit Figure No. VDD 5, 9 Encoder Clock Frequency TE Pulse Width Symbol Characteristic Output Transition Time Unit Min Max 2.5 - 450 ns 7 2.5 1.0 250 kHz 8 2.5 1.5 - µs MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 7 Operating Characteristics tf ANY OUTPUT 90% 10% Din tTLH VDD 90% tTHL Figure 5. Output Transition Time 10% VSS Figure 6. Din Rise and Fall Time t/fOSC RTC tf VDD TE 50% VSS 50% tW Figure 8. TE Pulse Width Figure 7. Encoder Clock Frequency TEST POINT OUTPUT DEVICE UNDER TEST CL* * Includes all probe and fixture capacitance. Figure 9. Test Circuit 3 3.1 Operating Characteristics MC145026 The encoder serially transmits trinary data as defined by the state of the A1 - A5 and A6/D6 - A9/D9 input pins. These pins may be in either of three states (low, high, or open) allowing 19,683 possible codes. The transmit sequence is initiated by a low level on the TE input pin. Upon power-up, the MC145026 can continuously transmit as long as TE remains low (also, the device can transmit two-word sequences by pulsing TE low). However, no MC145026 application should be designed to rely upon the first data word transmitted immediately after power-up because this word may be invalid. Between the two data words, no signal is sent for three data periods (see Figure 11). Each transmitted trinary digit is encoded into pulses (see Figure 12). A logic 0 (low) is encoded as two consecutive short pulses, a logic 1 (high) as two consecutive long pulses, and an open (high impedance) as a long pulse followed by a short pulse. The input state is determined by using a weak “output” device to try to force each input high then low. If only a high state results from the two tests, the input is assumed to be hardwired to VDD. If only a low state is obtained, the input is assumed to be hardwired to VSS. If both a high and a low can be forced at an input, an open is assumed and is encoded as such. The “high” and MC145026, MC145027, MC145028 Technical Data, Rev. 4 8 Freescale Semiconductor Pin Descriptions “low” levels are 70% and 30% of the supply voltage as shown in the Electrical Characteristics table. The weak “output” device sinks/sources up to 110 µA at a 5 V supply level, 500 µA at 10 V, and 1 mA at 15 V. The TE input has an internal pull-up device so that a simple switch may be used to force the input low. While TE is high, the encoder is completely disabled, the oscillator is inhibited, and the current drain is reduced to quiescent current. When TE is brought low, the oscillator is started and the transmit sequence begins. The inputs are then sequentially selected, and determinations are made as to the input logic states. This information is serially transmitted via the Dout pin. 3.2 MC145027 This decoder receives the serial data from the encoder and outputs the data, if it is valid. The transmitted data, consisting of two identical words, is examined bit by bit during reception. The first five trinary digits are assumed to be the address. If the received address matches the local address, the next four (data) bits are internally stored, but are not transferred to the output data latch. As the second encoded word is received, the address must again match. If a match occurs, the new data bits are checked against the previously stored data bits. If the two nibbles of data (four bits each) match, the data is transferred to the output data latch by VT and remains until new data replaces it. At the same time, the VT output pin is brought high and remains high until an error is received or until no input signal is received for four data periods (see Figure 11). Although the address information may be encoded in trinary, the data information must be either a 1 or 0. A trinary (open) data line is decoded as a logic 1. 3.3 MC145028 This decoder operates in the same manner as the MC145027 except that nine address lines are used and no data output is available. The VT output is used to indicate that a valid address has been received. For transmission security, two identical transmitted words must be consecutively received before a VT output signal is issued. The MC145028 allows 19,683 addresses when trinary levels are used. 512 addresses are possible when binary levels are used. 4 4.1 Pin Descriptions MC145026 Encoder A1 - A5, A6/D6 - A9/D9 Address, Address/Data Inputs (Pins 1 - 7, 9, and 10) These address/data inputs are encoded and the data is sent serially from the encoder via the Dout pin. RS, CTC, RTC (Pins 11, 12, and 13) These pins are part of the oscillator section of the encoder (see Figure 10). MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 9 Pin Descriptions If an external signal source is used instead of the internal oscillator, it should be connected to the RS input and the RTC and CTC pins should be left open. TE Transmit Enable (Pin 14) This active-low transmit enable input initiates transmission when forced low. An internal pull-up device keeps this input normally high. The pull-up current is specified in the Electrical Characteristics table. Dout Data Out (Pin 15) This is the output of the encoder that serially presents the encoded data word. VSS Negative Power Supply (Pin 8) The most-negative supply potential. This pin is usually ground. VDD Positive Power Supply (Pin 16) The most-positive power supply pin. 4.2 MC145027 and MC145028 Decoders A1 - A5, A1 - A9 Address Inputs (Pins 1 - 5) - MC145027, Address Inputs (Pins 1 - 5, 15, 14, 13, 12) - MC145028 These are the local address inputs. The states of these pins must match the appropriate encoder inputs for the VT pin to go high. The local address may be encoded with trinary or binary data. D6 - D9 Data Outputs (Pins 15, 14, 13, 12) - MC145027 Only These outputs present the binary information that is on encoder inputs A6/D6 through A9/D9. Only binary data is acknowledged; a trinary open at the MC145026 encoder is decoded as a high level (logic 1). Din Data In (Pin 9) This pin is the serial data input to the decoder. The input voltage must be at CMOS logic levels. The signal source driving this pin must be dc coupled. MC145026, MC145027, MC145028 Technical Data, Rev. 4 10 Freescale Semiconductor Pin Descriptions R1, C1 Resistor 1, Capacitor 1 (Pins 6, 7) As shown in Figure 3 and Figure 4, these pins accept a resistor and capacitor that are used to determine whether a narrow pulse or wide pulse has been received. The time constant R1 × C1 should be set to 1.72 encoder clock periods: R1 C1 = 3.95 RTC CTC R2/C2 Resistor 2/Capacitor 2 (Pin 10) As shown in Figure 3 and Figure 4, this pin accepts a resistor and capacitor that are used to detect both the end of a received word and the end of a transmission. The time constant R2 x C2 should be 33.5 encoder clock periods (four data periods per Figure 12): R2 C2 = 77 RTC CTC. This time constant is used to determine whether the Din pin has remained low for four data periods (end of transmission). A separate on-chip comparator looks at the voltage-equivalent two data periods (0.4 R2 C2) to detect the dead time between received words within a transmission. VT Valid Transmission Output (Pin 11) This valid transmission output goes high after the second word of an encoding sequence when the following conditions are satisfied: 1. the received addresses of both words match the local decoder address, and 2. the received data bits of both words match. VT remains high until either a mismatch is received or no input signal is received for four data periods. VSS Negative Power Supply (Pin 8) The most-negative supply potential. This pin is usually ground. VDD Positive Power Supply (Pin 16) The most-positive power supply pin. MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 11 Pin Descriptions RS CTC RTC 11 12 13 INTERNAL ENABLE This oscillator operates at a frequency determined by the external RC network; i.e., f≈ 1 2.3 RTC CTC′ (Hz) The value for RS should be chosen to be ≥ 2 times RTC. This range ensures that current through RS is insignificant compared to current through RTC. The upper limit for RS must ensure that RS x 5 pF (input capacitance) is small compared to RTC x CTC. for 1 kHz ≤ f ≤ 400 kHz where: CTC′ = CTC + Clayout + 12 pF RS ≈ 2 RTC RS ≥ 20 k RTC ≥ 10 k 400 pF < CTC < 15 µF For frequencies outside the indicated range, the formula is less accurate. The minimum recommended oscillation frequency of this circuit is 1 kHz. Susceptibility to externally induced noise signals may occur for frequencies below 1 kHz and/or when resistors utilized are greater than 1 MΩ. Figure 10. Encoder Oscillator Information ENCODER PWmin 2 WORD TRANSMISSION TE 1ST DIGIT 9TH DIGIT 1ST DIGIT 184 182 180 178 122 120 118 116 114 90 88 86 84 82 80 30 28 26 24 22 20 18 16 6 4 2 ENCODER OSCILLATOR (PIN 12) CONTINUOUS TRANSMISSION 9TH DIGIT Dout (PIN 15) HIGH LOW OPEN 1ST WORD 2ND WORD ENCODING SEQUENCE DECODER 1.1 (R2C2) VT (PIN 11) DATA OUTPUTS Figure 11. Timing Diagram MC145026, MC145027, MC145028 Technical Data, Rev. 4 12 Freescale Semiconductor Pin Descriptions ENCODER OSCILLATOR (PIN 12) ENCODED “ONE” Dout (PIN 15) ENCODED “ZERO” ENCODED “OPEN” DATA PERIOD Figure 12. Encoder Data Waveforms fmax (kHZ) (REF. TO ENCODER CLOCK) 500 400 VDD = 15 V VDD = 10 V 300 200 VDD = 5 V 100 10 20 30 40 50 Clayout (pF) ON PINS 1 - 5 (MC145027); PINS 1 - 5 AND 12 - 15 (MC145028) Figure 13. fmax vs Clayout - Decoders Only MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 13 Pin Descriptions NO HAS THE TRANSMISSION BEGUN? YES DOES THE 5-BIT ADDRESS MATCH THE ADDRESS PINS? NO DISABLE VT ON THE 1ST ADDRESS MISMATCH NO DISABLE VT ON THE 1ST DATA MISMATCH YES STORE THE 4-BIT DATA DOES THIS DATA MATCH THE PREVIOUSLY STORED DATA? YES IS THIS AT LEAST THE 2ND CONSECUTIVE MATCH SINCE VT DISABLE? NO YES LATCH DATA ONTO OUTPUT PINS AND ACTIVATE VT HAVE 4-BIT TIMES PASSED? YES DISABLE VT NO NO HAS A NEW TRANSMISSION BEGUN? YES Figure 14. MC145027 Flowchart MC145026, MC145027, MC145028 Technical Data, Rev. 4 14 Freescale Semiconductor Pin Descriptions NO HAS THE TRANSMISSION BEGUN? YES DOES THE ADDRESS MATCH THE ADDRESS PINS? NO DISABLE VT ON THE 1ST ADDRESS MISMATCH AND IGNORE THE REST OF THIS WORD YES IS THIS AT LEAST THE 2ND CONSECUTIVE MATCH SINCE VT DISABLE? NO YES ACTIVATE VT HAVE 4-BIT TIMES PASSED? YES DISABLE VT NO NO HAS A NEW TRANSMISSION BEGUN? YES Figure 15. MC145028 Flowchart MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 15 MC145027 and MC145028 Timing 5 MC145027 and MC145028 Timing To verify the MC145027 or MC145028 timing, check the waveforms on C1 (Pin 7) and R2/C2 (Pin 10) as compared to the incoming data waveform on Din (Pin 9). The R-C decay seen on C1 discharges down to 1/3 VDD before being reset to VDD. This point of reset (labelled “DOS” in Figure 16) is the point in time where the decision is made whether the data seen on Din is a 1 or 0. DOS should not be too close to the Din data edges or intermittent operation may occur. The other timing to be checked on the MC145027 and MC145028 is on R2/C2 (see Figure 17). The R-C decay is continually reset to VDD as data is being transmitted. Only between words and after the end-of-transmission (EOT) does R2/C2 decay significantly from VDD. R2/C2 can be used to identify the internal end-of-word (EOW) timing edge which is generated when R2/C2 decays to 2/3 VDD. The internal EOT timing edge occurs when R2/C2 decays to 1/3 VDD. When the waveform is being observed, the R-C decay should go down between the 2/3 and 1/3 VDD levels, but not too close to either level before data transmission on Din resumes. Verification of the timing described above should ensure a good match between the MC145026 transmitter and the MC145027 and MC145028 receivers. VDD Din 0V VDD C1 2/3 1/3 0V DOS DOS Figure 16. R-C Decay on Pin 7 (C1) EOW VDD R2/C2 2/3 1/3 0V EOT Figure 17. R-C Decay on Pin 10 (R2/C2) MC145026, MC145027, MC145028 Technical Data, Rev. 4 16 Freescale Semiconductor MC145027 and MC145028 Timing VDD VDD TE VDD VDD 0.1 µF A1 5 TRINARY ADDRESSES 14 A2 1 2 3 4 5 6 7 9 10 A3 A4 A5 D6 D7 4-BIT BINARY DATA D8 Din 2.3 RTCCTC′ R1C1 = 3.95 RTCCTC R2C2 = 77 RTCCTC 9 6 R1 MC145026 13 7 RTC C1 CTC 12 10 11 RS 8 R2 CTC′ = CTC + Clayout + 12 pF 100 pF ≤ CTC ≤ 15 µF RTC ≥ 10 kΩ; RS ≈ 2 RTC R1 ≥ 10 kΩ C1 ≥ 400 pF R2 ≥ 100 kΩ C2 ≥ 700 pF 1 A1 16 16 15 Dout D9 fosc = 0.1 µF 1 2 3 4 5 MC145027 15 14 13 12 11 C2 A2 A3 A4 5 TRINARY ADDRESSES A5 D6 D7 D8 D9 VT 8 REPEAT OF ABOVE REPEAT OF ABOVE Example R/C Values (All Resistors and Capacitors are ± 5%) (CTC′ = CTC + 20 pF) fosc (kHz) RTC 362 181 88.7 42.6 21.5 8.53 1.71 10 k 10 k 10 k 10 k 10 k 10 k 50 k CTC′ 120 pF 240 pF 490 pF 1020 pF 2020 pF 5100 pF 5100 pF RS R1 C1 R2 C2 20 k 20 k 20 k 20 k 20 k 20 k 100 k 10 k 10 k 10 k 10 k 10 k 10 k 50 k 470 pF 910 pF 2000 pF 3900 pF 8200 pF 0.02 µF 0.02 µF 100 k 100 k 100 k 100 k 100 k 200 k 200 k 910 pF 1800 pF 3900 pF 7500 pF 0.015 µF 0.02 µF 0.1 µF Figure 18. Typical Application MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 17 Package Dimensions 6 Package Dimensions NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. -A16 9 1 8 B F C DIM A B C D F G H J K L M S L S -T- SEATING PLANE K H G D M J 16 PL 0.25 (0.010) M T A M INCHES MILLIMETERS MIN MAX MIN MAX 0.740 0.770 18.80 19.55 0.250 0.270 6.35 6.85 0.145 0.175 3.69 4.44 0.015 0.021 0.39 0.53 0.040 0.70 1.02 1.77 0.100 BSC 2.54 BSC 0.050 BSC 1.27 BSC 0.008 0.015 0.21 0.38 0.110 0.130 2.80 3.30 0.295 0.305 7.50 7.74 0˚ 10˚ 0˚ 10˚ 0.020 0.040 0.51 1.01 Figure 19. Outline Dimensions for P SUFFIX PLASTIC DIP (DUAL IN-LINE PACKAGE) (Case Outline 648-08, Issue R) 0.25 8X PIN'S NUMBER M B A 6.2 5.8 1 1.75 1.35 0.25 0.10 16X 16 0.49 0.35 0.25 T A B 14X PIN 1 INDEX 1.27 4 A 8 10.0 9.8 A 9 T 4.0 3.8 SEATING PLANE 16X B 0.1 T 5 0.50 0.25 6 M X45˚ 0.25 0.19 1.25 0.40 SECTION A-A NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 3. DATUMS A AND B TO BE DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 4. THIS DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURRS. MOLD FLASH, PROTRUSION OR GATE BURRS SHALL NOT EXCEED 0.15mm PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 5. THIS DIMENSION DOES NOT INCLUDE INTER-LEAD FLASH OR PROTRUSIONS. INTER-LEAD FLASH AND PROTRUSIONS SHALL NOT EXCEED 0.25mm PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 6. THIS DIMENSION DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL NOT CAUSE THE LEAD WIDTH TO EXCEED 0.62mm. 7˚ 0˚ Figure 20. Outline Dimensions for D SUFFIX SOG (SMALL OUTLINE GULL-WING) PACKAGE (Case Outline 751B-05, Issue K) MC145026, MC145027, MC145028 Technical Data, Rev. 4 18 Freescale Semiconductor Package Dimensions 0.25 8X PIN'S NUMBER M B A 10.55 10.05 2.65 2.35 0.25 0.10 16X 16 1 0.49 0.35 0.25 6 M T A B PIN 1 INDEX 14X 10.45 4 10.15 A A 8 1.27 9 7.6 7.4 T B SEATING PLANE 16X 0.1 T 5 0.75 0.25 X45˚ 0.32 0.23 1.0 0.4 SECTION A-A NOTES: 1. DIMENSIONS ARE IN MILLIMETERS. 2. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 3. DATUMS A AND B TO BE DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 4. THIS DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSION OR GATE BURRS. MOLD FLASH, PROTRUSION OR GATE BURRS SHALL NOT EXCEED 0.15mm PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 5. THIS DIMENSION DOES NOT INCLUDE INTER-LEAD FLASH OR PROTRUSIONS. INTER-LEAD FLASH AND PROTRUSIONS SHALL NOT EXCEED 0.25mm PER SIDE. THIS DIMENSION IS DETERMINED AT THE PLANE WHERE THE BOTTOM OF THE LEADS EXIT THE PLASTIC BODY. 6. THIS DIMENSION DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL NOT CAUSE THE LEAD WIDTH TO EXCEED 0.62mm. 7˚ 0˚ Figure 21. Outline Dimensions for DW SUFFIX SOG (SMALL OUTLINE GULL-WING) PACKAGE (Case Outline 751G-04, Issue D) MC145026, MC145027, MC145028 Technical Data, Rev. 4 Freescale Semiconductor 19 How to Reach Us: Home Page: www.freescale.com E-mail: [email protected] USA/Europe or Locations Not Listed: Freescale Semiconductor Technical Information Center, CH370 1300 N. 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