SEMICONDUCTOR TECHNICAL DATA Master slave construction renders the MC1670 relatively insensitive to the shape of the clock waveform, since only the voltage levels at the clock inputs control the transfer of information from data input (D) to output. When both clock inputs (C1 and C2) are in the low state, the data input affects only the “Master” portion of the flip-flop. The data present in the “Master” is transferred to the “Slave” when clock inputs (C1 “OR” C2) are taken from a low to a high level. In other words, the output state of the flip-flop changes on the positive transition of the clock pulse. While either C1 “OR” C2 is in the high state, the “Master” (and data input) is disabled. Asynchronous Set (S) and Reset (R) override Clock (C) and Data (D) inputs. L SUFFIX CERAMIC PACKAGE CASE 620–10 Power Dissipation = 220 mW typ (No Load) fTog = 350 MHz typ TRUTH TABLE R S D C Qn+1 L H H L L L L L L H L H L L L L L L X X X L L L H H H X X X L H L N.D. Qn L Qn Qn H Qn H L H LOGIC DIAGRAM 5 S 7 C1 Q 2 9 C2 ND = Not Defined C = C1 + C2 11 D 4 R ELECTRICAL CHARACTERISTICS –30°C + 25°C Ch Characteristic i i S b l Symbol Min Max Min Max Min Max U i Unit IE — — — 48 — — mAdc — — — — — — — — — 550 250 270 — — — — — — Switching Times Propagation Delay VCC1 = Pin 1 VCC2 = Pin 16 VEE = Pin 8 + 85°C Power Supply Drain Current Input Current Set, Reset Clock Data Q 3 µAdc IinH PIN ASSIGNMENT ns VCC1 1 16 VCC2 Q 2 15 NC 1.0 2.7 1.1 2.5 1.1 2.9 Rise Time (10% to 90%) tpd t+ 0.9 2.7 1.0 2.5 1.0 2.9 ns Q 3 14 NC Fall Time (10% to 90%) t– 0.5 2.1 0.6 1.9 0.6 2.3 ns RESET 4 13 NC tS“1” tS“0” tH“1” tH“0” — — — — 0.4 0.5 — — — — — — ns SET 5 12 NC — — — — 0.3 0.5 — — — — — — ns NC 6 11 DATA fTog 270 — 300 — 270 — MHz CLOCK 1 7 10 NC VEE 8 9 Setup Time Hold Time Toggle Frequency 3/93 Motorola, Inc. 1996 4–356 REV 5 CLOCK 2 MC1670 FIGURE 1 — TOGGLE FREQUENCY WAVEFORMS TA = 25°C +1.11 V CLOCK INPUT 300 MHZ-MAX +0.71 VBIAS +0.31 V Q OR Q OUTPUT 600 MV MIN The maximum toggle frequency of the MC1670 has been exceeded when either: 1. The output peak-to-peak voltage swing falls below 600 millivolts, OR 2. The device ceases to toggle (divide by two). VBias FIGURE 2 — MAXIMUM TOGGLE FREQUENCY (TYPICAL) +1.05 +1.0 +0.95 +0.9 +0.85 +0.8 +0.75 +0.7 +0.65 +0.5 +0.45 +0.4 +0.35 +0.3 +0.25 175 TA = 25°C VCC = +2.0 VDC VEE = –3.2 VDC Figure 2 illustrates the variation in toggle frequency with the dc offset voltage (V Bias ) of the input clock signal. Figures 4 and 5 illustrate minimum clock pulse width recommended for reliable operation of the MC1670. 225 275 325 375 425 FTOG (MHZ) fTog max , MAXIMUM TOGGLE FREQUENCY (MHz) FIGURE 3 — TYPICAL MAXIMUM TOGGLE FREQUENCY versus TEMPERATURE 400 350 300 250 –30 0 25 50 85 TA, AMBIENT TEMPERATURE (°C) Temperature –30°C +25°C +85°C VBias +0.66 Vdc +0.71 Vdc +0.765 Vdc Note: All power supply and logic levels are shown shifted 2.0 volts positive. MECL Data DL122 — Rev 6 4–357 MOTOROLA MC1670 FIGURE 4 — MINIMUM “DOWN TIME” TO CLOCK OUTPUT LOAD = 50 Ω SCALE 250 mV/DIV CLOCK Q OR Q 1.0 NS/DIV. FIGURE 5 — MINIMUM “UP TIME” TO CLOCK OUTPUT LOAD = 50 Ω SCALE 250 mV/DIV Q OR Q CLOCK 1.0 NS/DIV. MOTOROLA 4–358 MECL Data DL122 — Rev 6 MC1670 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 –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 M T B S DIM A B C D E F G H K L M N 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 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 Motorola reserves the right to make changes without further notice to any products herein. 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How to reach us: USA/EUROPE/Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217. 1–800–441–2447 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315 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 4–359 *MC1670/D* MC1670/D MOTOROLA