SEMICONDUCTOR TECHNICAL DATA The MC10198 is a retriggerable monostable multivibrator. Two enable inputs permit triggering on any combination of positive or negative edges as shown in the accompanying table. The trigger input is buffered by Schmitt triggers making it insensitive to input rise and fall times. The pulse width is controlled by an external capacitor and resistor. The resistor sets a current which is the linear discharge rate of the capacitor. Also, the pulse width can be controlled by an external current source or voltage (see applications information). For high–speed response with minimum delay, a hi–speed input is also provided. This input bypasses the internal Schmitt triggers and the output responds within 2 nanoseconds typically. Output logic and threshold levels are standard MECL 10,000. Test conditions are per Table 2. Each “Precondition” referred to in Table 2 is per the sequence of Table 1. L SUFFIX CERAMIC PACKAGE CASE 620–10 P SUFFIX PLASTIC PACKAGE CASE 648–08 FN SUFFIX PLCC CASE 775–02 PD = 415 mW typ/pkg (No Load) tpd = 4.0 ns typ Trigger Inpt to Q 2.0 ns typ Hi–Speed Input to Q Min Timing Pulse Width Max Timing Pulse Width Min Trigger Pulse Width Min Hi–Speed Trigger Pulse Width Enable Setup Time Enable Hold Time PWQmin PWQmax PWT PWHS 10 ns typ1 >10 ms typ2 2.0 ns typ 3.0 ns typ tset thold 1.0 ns typ 1.0 ns typ DIP PIN ASSIGNMENT 1 CExt = 0 (Pin 4 open), RExt = 0 (Pin 6 to VEE) 2 CExt = 10 µF, RExt = 2.7 kΩ 5 7 10 TRIGGER INPUT 15 HI–SPEED INPUT Q 2 15 HIGH–SPEED INPUT Q 3 14 N/C CEXT 4 13 TRIGGER INPUT EPOS 5 12 N/C REXT 6 11 N/C 7 10 ENEG VEE 8 9 N/C 4 CEXT Q 3 VCC1 = PIN 1 VCC2 = PIN 16 VEE = PIN 8 Q 2 TRUTH TABLE INPUT EPos ENeg L L H L L H H H OUTPUT Triggers on both positive & negative input slopes Triggers on positive input slope Triggers on negative input slope Trigger is disabled 3/93 Motorola, Inc. 1996 VCC2 Pin assignment is for Dual–in–Line Package. For PLCC pin assignment, see the Pin Conversion Tables on page 6–11 of the Motorola MECL Data Book (DL122/D). EXTERNAL PULSE WIDTH CONTROL ENEG 13 16 VCC 6 REXT E pos 1 EXT.PULSE WIDTH CONTROL LOGIC DIAGRAM VEE VCC1 3–172 REV 5 MC10198 TABLE 1 — PRECONDITION SEQUENCE 1. At t = 0 w 10 ns Apply VIHmax to Pin 5 and 10. Apply VILmin to Pin 15. Ground Pin 4. 2. At t a.) Open Pin 1. b.) Apply –3.0 Vdc to Pin 4. Hold these conditions for 10 ns. 3. Return Pin 4 to Ground and perform test as indicated in Table 2. w 10 ns w Pin 4 Voltage (Vdc) 0(Gnd) a.) b.) c.) 10 ns w –1.0 –2.0 –3.0 Pin 1 open –4.0 –5.0 10 0 30 20 t(ns) TABLE 2 — CONDITIONS FOR TESTING OUTPUT LEVELS (See Table 1 for Precondition Sequence) VIH max VIHA max VILA max VIL min P1 VIL min P3 VIL min P2 Pins 1, 16 = VCC = Ground Pins 6, 8 = VEE = –5.2 Vdc Outputs loaded 50 Ω to –2.0 Vdc Pin Conditions Test P.U.T. Precondition VOH 2 VOH 3 Precondition VOL 3 VOL 2 Precondition VOHA 2 VOHA 3 Precondition VOHA 2 VOHA 3 Precondition VOHA 2 VOHA 3 Precondition VOHA 2 VOHA 3 Precondition VOHA 2 VOHA 3 MECL Data DL122 — Rev 6 5 10 13 Pin Conditions 15 VIL min P1 VIL min P1 VILA max VIHA min VIL min P3 P2 P3 VIH max VIH max P2 P3 VIH max VIH max P1 P1 Test P.U.T. Precondition VOHA 2 VOHA 3 Precondition VOLA 3 VOLA 2 Precondition VOLA 2 VOLA 3 Precondition VOLA 3 VOLA 2 Precondition VOLA 3 VOLA 2 Precondition VOLA 3 VOLA 2 Precondition VOLA 3 VOLA 2 3–173 5 10 13 VIHA min VILA max P1 P1 15 VILA max VIHA min VIL min VIL min P2 P3 VIH max VIH max P2 P3 VIHA min VILA max VIH max VIH max P1 P1 VIH max VIH max VIHA min VILA max P1 P1 MOTOROLA MC10198 ELECTRICAL CHARACTERISTICS Test Limits Characteristic Power Supply Drain Current Input Current Symbol Pin Pi Under Test IE 8 110 IinH 5, 10 13 15 415 350 560 IinL 5 0.5 –30°C Min +25°C Max Min +85°C Max Unit 100 110 mAdc 260 220 350 260 220 350 µAdc Typ Max 80 0.5 Min µAdc 0.3 Output Voltage Logic 1 VOH 2 3 –1.060 –1.060 –0.890 –0.890 –0.960 –0.960 –0.810 –0.810 –0.890 –0.890 –0.700 –0.700 Vdc Output Voltage Logic 0 VOL 2 3 –1.890 –1.890 –1.675 –1.675 –1.850 –1.850 –1.650 –1.650 –1.825 –1.825 –1.615 –1.615 Vdc Threshold Voltage Logic 1 VOHA 2 3 –1.080 –1.080 Threshold Voltage Logic 0 VOLA 2 3 tT+Q+ tT–Q+ 3 3 2.5 2.5 6.5 6.5 2.5 2.5 4.0 4.0 5.5 5.5 High Speed Trigger Input tHS+Q+ 3 1.5 3.2 1.5 2.0 2.8 Minimum Timing Pulse Width PWQmin 3 10.0 ns Maximum Timing Pulse Width PWQmax 3 >10 ms PWT 3 2.0 ns PWHS 3 3.0 ns Switching Times –0.980 –0.980 –0.910 –0.910 –1.655 –1.655 –1.630 –1.630 Vdc –1.595 –1.595 Vdc 2.5 2.5 6.5 6.5 ns 1.5 3.2 ns (50Ω Load) Trigger Input Min Trigger Pulse Width Min Hi–Spd Trig Pulse Width Rise Time (20 to 80%) 3 1.5 4.0 1.5 3.5 1.5 4.0 ns Fall Time (20 to 80%) 3 1.5 4.0 1.5 3.5 1.5 4.0 ns Enable Setup Time tsetup (E) 3 Enable Hold Time thold (E) 3 1. The monostable is in the timing mode at the time of this test. 2. CEXT = 0 (Pin 4 Open); REXT = 0 (Pin 6 tied to VEE). 3. CEXT = 10µF (Pin); REXT = 2.7k (Pin 6). 1.0 ns 1.0 ns VIHmax 4. P1 MOTOROLA VILmin 3–174 MECL Data DL122 — Rev 6 MC10198 ELECTRICAL CHARACTERISTICS (continued) TEST VOLTAGE VALUES (Volts) Characteristic Power Supply Drain Current Input Current Output Voltage Logic 1 Output Voltage Logic 0 Threshold Voltage Logic 1 Threshold Voltage Logic 0 Switching Times @ Test Temperature VIHmax VILmin VIHAmin VILAmax VEE –30°C –0.890 –1.890 –1.205 –1.500 –5.2 +25°C –0.810 –1.850 –1.105 –1.475 –5.2 +85°C –0.700 –1.825 –1.035 –1.440 –5.2 Symbol Pin Under Test IE 8 IinH 5, 10 13 15 IinL 5 VOH 2 3 VOL VOHA VOLA 2 3 3 3 High Speed Trigger Input tHS+Q+ 3 Minimum Timing Pulse Width PWQmin 3 Maximum Timing Pulse Width PWQmax 3 PWT 3 PWHS 3 Minimum Hi–Spd Trigger Pulse Width Rise Time (20 to 80%) Fall Time (20 to 80%) Enable Setup Time VEE (VCC) Gnd 6, 8 1, 4, 16 6, 8 6, 8 6, 8 1, 4, 16 1, 4, 16 1, 4, 16 5 6, 8 1, 4, 16 13 6, 8 6, 8 1, 4, 16 1, 4, 16 6, 8 6, 8 1, 4, 16 1, 4, 16 6, 8 6, 8 1, 16, 4 1, 16, 4 15 6, 8 6, 8 1, 16, 4 1, 16, 4 VILmin VIHAmin VILAmax 5,10 13 15 13 (4.) 13 (4.) 13 15 15 2 3 tT+Q+ tT–Q+ Minimum Trigger Pulse Width VIHmax 2 3 (50Ω Load) Trigger Input TEST VOLTAGE APPLIED TO PINS LISTED BELOW 15 +1.11V Pulse In Pulse Out –3.2 V +2.0 V 10 5 13 13 3 3 6, 8 6, 8 1, 16, 4 1, 16, 4 3 6, 8 1, 16, 4 Note 2. 6, 8 1, 16, 4 Note 3. 6, 8 1, 16, 4 13 3 6, 8 1, 16, 4 15 3 6, 8 1, 16, 4 6, 8 1, 16, 4 15 3 3 tsetup (E) 3 Enable Hold Time thold (E) 3 1. The monostable is in the timing mode at the time of this test. 2. CEXT = 0 (Pin 4 Open); REXT = 0 (Pin 6 tied to VEE). 3. CEXT = 10µF (Pin); REXT = 2.7k (Pin 6). 6, 8 1, 16, 4 5 3 6, 8 1, 16, 4 5 3 6, 8 1, 16, 4 VIHmax 4. P1 VILmin Each MECL 10,000 series circuit has been designed to meet the dc specifications shown in the test table, after thermal equilibrium has been established. The circuit is in a test socket or mounted on a printed circuit board and transverse air flow greater than 500 linear fpm is maintained. Outputs are terminated through a 50–ohm resistor to –2.0 volts. Test procedures are shown for only one gate. The other gates are tested in the same manner. MECL Data DL122 — Rev 6 3–175 MOTOROLA MC10198 SWITCHING TIME TEST CIRCUIT AND WAVEFORMS @ 25°C VCC1 = VCC2 = +2.0 Vdc Vin 25 µF Vout 0.1 µF Coax Coax 5 7 Input TPin 10 Pulse Generator +1.11 V 13 0.1 µF 15 EPos External Pulse Width Control Q 3 ENeg TPout Trigger Input Hi–Speed Input Input Pulse t+ = t– = 2.0 ± 0.2 ns (20 to 80%) 6 RExt Q 2 4 CExt 50–ohm termination to ground located in each scope channel input. 0.1 µF All input and output cables to the scope are equal lengths of 50–ohm coaxial cable. Wire length should be < 1/4 inch from TPin to input pin and TPout to output pin. Unused outputs are tied to a 50–ohm resistor to ground. VEE = –3.2 Vdc 50% EPos tsetup (E) Trigger Input 50% tT+Q+ Q PWT tT–Q+ 50% tHold(E) 50% PWQ High–Speed Trigger Input tHS+Q+ PWHS Q PWQ MOTOROLA 3–176 MECL Data DL122 — Rev 6 MC10198 APPLICATIONS INFORMATION Circuit Operation: Figure 2 shows typical curves for pulse width versus CExt and RExt (total resistance includes RInt). Any low leakage capacitor can be used and RExt can vary from 0 to 16 k–ohms. 1.PULSE WIDTH TIMING — The pulse width is determined by the external resistor and capacitor. The MC10198 also has an internal resistor (nominally 284 ohms) that can be used in series with RExt. Pin 7, the external pulse width control, is a constant voltage node (–3.60 V nominally). A resistance connected in series from this node to VEE sets a constant timing current IT. This current determines the discharge rate of the capacitor: ∆V IT = CExt ∆T 2.TRIGGERING —The Epos and ENeg inputs control the trigger input. The MC10198 can be programmed to trigger on the positive edge, negative edge, or both. Also, the trigger input can be totally disabled. The truth table is shown on the first page of the data sheet. The device is totally retriggerable. However, as duty cycle approaches 100%, pulse width jitter can occur due to the recovery time of the circuit. Recovery time is basically dependent on capacitance CExt. Figure 3 shows typical recovery time versus capacitance at IT = 5 mA. where ∆T = pulse width ∆V = 1.9 V change in capacitor voltage Then: FIGURE 2 – TIMING PULSE WIDTH versus CExt and RExt 1.9 V ∆T = CExt IT If RExt + RInt are in series to VEE: IT = [(–3.60 V) – (–5.2 V)] ÷ [RExt + 284 Ω] IT = 1.6 V/(RExt + 284) The timing equation becomes: ∆T = [(CExt)(1.9 V)] ÷ [1.6 V/(RExt + 284)] ∆T = CExt (RExt + 284) 1.19 PULSE WIDTH ( µ s) 100 10 10 kΩ 3 kΩ 1 500 Ω 100 where ∆T = Sec RExt = Ohms CExt = Farads 10 10 pF FIGURE 1 — RExt = 0 100 pF NOTE: TOTAL RESISTANCE = RExt + RInt 1000 pF 0.01 µF CExt – TIMING CAPACITANCE 0.1 µF FIGURE 3 — RECOVERY TIME versus CExt @ IT = 5 mA 10 µs 4 MC10198 7 RInt 284 Ω 6 –3.60 V External Pulse Width Control RECOVERY TIME CExt 1 µs 100 ns 10 ns RExt 1 ns 10 pF VEE = –5.2 V MECL Data DL122 — Rev 6 3–177 100 pF 0.01 µF 1000 pF CExt – TIMING CAPACITANCE 0.1 µF MOTOROLA MC10198 FIGURE 5 — PULSE WIDTH versus IT @ CExt = 13 pF 1000 PULSE WIDTH (ns) 3.HI–SPEED INPUT — This input is used for stretching very narrow pulses with minimum delay between the output pulse and the trigger pulse. The trigger input should be disabled when using the high–speed input. The MC10198 triggers on the rising edge, using this input, and input pulse width should narrow, typically less than 10 nanoseconds. USAGE RULES: 1.Capacitor lead lengths should be kept very short to minimize ringing due to fast recovery rise times. 2.The E inputs should not be tied to ground to establish a high logic level. A resistor divider or diode can be used to establish a –0.7 to –0.9 voltage level. 3.For optimum temperature stability; 0.5 mA is the best timing current IT. The device is designed to have a constant voltage at the EXTERNAL PULSE WIDTH CONTROL over temperature at this current value. 4.Pulse Width modulation can be attained with the EXTERNAL PULSE WIDTH CONTROL. The timing current can be altered to vary the pulse width. Two schemes are: a. The internal resistor is not used. A dependent current source is used to set the timing current as shown in Figure 4. A graph of pulse width versus timing current (CExt = 13 pF) is shown in Figure 5. 100 10 0.01 mA 0.1 mA 1 mA b. A control voltage can also be used to vary the pulse width using an additional resistor (Figure 6). The current (IT + IC) is set by the voltage drop across RInt + RExt. The control current IC modifies IT and alters the pulse width. Current IC should never force IT to zero. RC typically 1 kΩ. FIGURE 6 — FIGURE 4 — 4 4 10 mA IT – TIMING CURRENT CExt CExt IT 7 IC MC10198 –3.6 V 284 RC Control Voltage 7 6 I IT + IC RExt –5.2 V MOTOROLA 3–178 MECL Data DL122 — Rev 6 MC10198 5.The MC10198 can be made non–retriggerable. The Q output is fed back to disable the trigger input during the triggered state (Logic Diagram). Figure 7 shows a positive triggered configuration; a similar configuration can be made for negative triggering. FIGURE 7 — VEE VCC RExt CExt 6 4 Q E Pos External Pulse Width Control –0.9 V ENeg Trigger Input Hi–Speed Input MECL Data DL122 — Rev 6 Q 3–179 MOTOROLA MC10198 OUTLINE DIMENSIONS FN SUFFIX PLASTIC PLCC PACKAGE CASE 775–02 ISSUE C 0.007 (0.180) M T L–M B Y BRK –N– U N S 0.007 (0.180) M T L–M S S N S D –L– –M– Z W 20 D 1 V 0.010 (0.250) G1 X S T L–M N S S VIEW D–D A 0.007 (0.180) M T L–M S N S R 0.007 (0.180) M T L–M S N S Z C H –T– SEATING PLANE F VIEW S G1 0.010 (0.250) S T L–M S 0.007 (0.180) M T L–M S N S VIEW S S N S NOTES: 1. DATUMS –L–, –M–, AND –N– DETERMINED WHERE TOP OF LEAD SHOULDER EXITS PLASTIC BODY AT MOLD PARTING LINE. 2. DIMENSION G1, TRUE POSITION TO BE MEASURED AT DATUM –T–, SEATING PLANE. 3. DIMENSIONS R AND U DO NOT INCLUDE MOLD FLASH. ALLOWABLE MOLD FLASH IS 0.010 (0.250) PER SIDE. 4. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 5. CONTROLLING DIMENSION: INCH. 6. THE PACKAGE TOP MAY BE SMALLER THAN THE PACKAGE BOTTOM BY UP TO 0.012 (0.300). DIMENSIONS R AND U ARE DETERMINED AT THE OUTERMOST EXTREMES OF THE PLASTIC BODY EXCLUSIVE OF MOLD FLASH, TIE BAR BURRS, GATE BURRS AND INTERLEAD FLASH, BUT INCLUDING ANY MISMATCH BETWEEN THE TOP AND BOTTOM OF THE PLASTIC BODY. 7. DIMENSION H DOES NOT INCLUDE DAMBAR PROTRUSION OR INTRUSION. THE DAMBAR PROTRUSION(S) SHALL NOT CAUSE THE H DIMENSION TO BE GREATER THAN 0.037 (0.940). THE DAMBAR INTRUSION(S) SHALL NOT CAUSE THE H DIMENSION TO BE SMALLER THAN 0.025 (0.635). MOTOROLA N K 0.004 (0.100) J S K1 E G 0.007 (0.180) M T L–M 3–180 DIM A B C E F G H J K R U V W X Y Z G1 K1 INCHES MIN MAX 0.385 0.395 0.385 0.395 0.165 0.180 0.090 0.110 0.013 0.019 0.050 BSC 0.026 0.032 0.020 ––– 0.025 ––– 0.350 0.356 0.350 0.356 0.042 0.048 0.042 0.048 0.042 0.056 ––– 0.020 2_ 10 _ 0.310 0.330 0.040 ––– MILLIMETERS MIN MAX 9.78 10.03 9.78 10.03 4.20 4.57 2.29 2.79 0.33 0.48 1.27 BSC 0.66 0.81 0.51 ––– 0.64 ––– 8.89 9.04 8.89 9.04 1.07 1.21 1.07 1.21 1.07 1.42 ––– 0.50 2_ 10 _ 7.88 8.38 1.02 ––– MECL Data DL122 — Rev 6 MC10198 OUTLINE DIMENSIONS L SUFFIX CERAMIC DIP PACKAGE CASE 620–10 ISSUE V –A– 16 9 1 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIMENSION F MAY NARROW TO 0.76 (0.030) WHERE THE LEAD ENTERS THE CERAMIC BODY. –B– C L DIM A B C D E F G H K L M N –T– K N SEATING PLANE M E F J G D 16 PL 0.25 (0.010) 16 PL 0.25 (0.010) M T A T B M –A– 9 1 8 B F C L S –T– SEATING PLANE K H G D M J 16 PL 0.25 (0.010) M MILLIMETERS MIN MAX 19.05 19.93 6.10 7.49 ––– 5.08 0.39 0.50 1.27 BSC 1.40 1.65 2.54 BSC 0.21 0.38 3.18 4.31 7.62 BSC 0_ 15 _ 0.51 1.01 S P SUFFIX PLASTIC DIP PACKAGE CASE 648–08 ISSUE R 16 S INCHES MIN MAX 0.750 0.785 0.240 0.295 ––– 0.200 0.015 0.020 0.050 BSC 0.055 0.065 0.100 BSC 0.008 0.015 0.125 0.170 0.300 BSC 0_ 15 _ 0.020 0.040 T A M 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. DIM A B C D F G H J K L M S INCHES MIN MAX 0.740 0.770 0.250 0.270 0.145 0.175 0.015 0.021 0.040 0.70 0.100 BSC 0.050 BSC 0.008 0.015 0.110 0.130 0.295 0.305 0_ 10 _ 0.020 0.040 MILLIMETERS MIN MAX 18.80 19.55 6.35 6.85 3.69 4.44 0.39 0.53 1.02 1.77 2.54 BSC 1.27 BSC 0.21 0.38 2.80 3.30 7.50 7.74 0_ 10 _ 0.51 1.01 Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. 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Box 5405, Denver, Colorado 80217. 303–675–2140 or 1–800–441–2447 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 81–3–3521–8315 Mfax: [email protected] – TOUCHTONE 602–244–6609 INTERNET: http://Design–NET.com ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 ◊ MECL Data DL122 — Rev 6 3–181 *MC10198/D* MC10198/D MOTOROLA