首页资源分类电子电路数字电路 > 4585 CMOS 4位数字比较器.pdf

4585 CMOS 4位数字比较器.pdf

已有 454993个资源

下载专区

电子电路热门资源

本周本月全部

文档信息举报收藏

标    签: 4585CMOS4位数字比较器

分    享:

文档简介

4585 CMOS 4位数字比较器.pdf

文档预览

MOTOROLA SEMICONDUCTOR TECHNICAL DATA 4-Bit Magnitude Comparator The MC14585B 4–Bit Magnitude Comparator is constructed with complementary MOS (CMOS) enhancement mode devices. The circuit has eight comparing inputs (A3, B3, A2, B2, A1, B1, A0, B0), three cascading inputs (A < B, A = B, and A > B), and three outputs (A < B, A = B, and A > B). This device compares two 4–bit words (A and B) and determines whether they are “less than”, “equal to”, or “greater than” by a high level on the appropriate output. For words greater than 4–bits, units can be cascaded by connecting outputs (A > B), (A < B), and (A = B) to the corresponding inputs of the next significant comparator. Inputs (A < B), (A = B), and (A > B) on the least significant (first) comparator are connected to a low, a high, and a low, respectively. Applications include logic in CPU’s, correction and/or detection of instrumentation conditions, comparator in testers, converters, and controls. • Diode Protection on All Inputs • Expandable • Applicable to Binary or 8421–BCD Code • Supply Voltage Range = 3.0 Vdc to 18 Vdc • Capable of Driving Two Low–power TTL Loads or One Low–power Schottky TTL Load over the Rated Temperature Range ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ • Can be Cascaded – See Fig. 3 ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ MAXIMUM RATINGS* (Voltages Referenced to VSS) Symbol Parameter Value Unit VDD DC Supply Voltage – 0.5 to + 18.0 V Vin, Vout Input or Output Voltage (DC or Transient) – 0.5 to VDD + 0.5 V Iin, Iout Input or Output Current (DC or Transient), ± 10 mA per Pin PD Power Dissipation, per Package† 500 mW Tstg Storage Temperature – 65 to + 150 _C TL Lead Temperature (8–Second Soldering) 260 _C * Maximum Ratings are those values beyond which damage to the device may occur. †Temperature Derating: Plastic “P and D/DW” Packages: – 7.0 mW/_C From 65_C To 125_C Ceramic “L” Packages: – 12 mW/_C From 100_C To 125_C TRUTH TABLE (x = Don’t Care) A3, B3 A3 > B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 = B3 A3 < B3 Inputs Comparing A2, B2 A1, B1 A0, B0 x A2 > B2 A2 = B2 A2 = B2 x x A1 > B1 A1 = B1 x x x A0 > B0 A2 = B2 A2 = B2 A2 = B2 A2 = B2 A1 = B1 A1 = B1 A1 = B1 A1 = B1 A0 = B0 A0 = B0 A0 = B0 A0 = B0 A2 = B2 A2 = B2 A2 < B2 x A1 = B1 A1 < B1 x x A0 < B0 x x x Cascading Outputs AB AB x x x 0 0 1 x x x 0 0 1 x x x 0 0 1 x x x 0 0 1 0 0 x 0 0 1 0 1 x 0 1 0 1 0 x 1 0 0 1 1 x 1 1 0 x x x 1 0 0 x x x 1 0 0 x x x 1 0 0 x x x 1 0 0 REV 3 1/94 ©MMOotoTrOolaR, IOncL. A199C5MOS LOGIC DATA MC14585B L SUFFIX CERAMIC CASE 620 P SUFFIX PLASTIC CASE 648 D SUFFIX SOIC CASE 751B ORDERING INFORMATION MC14XXXBCP MC14XXXBCL MC14XXXBD Plastic Ceramic SOIC TA = – 55° to 125°C for all packages. BLOCK DIAGRAM 4 (A > B)in 6 (A = B)in 5 (A < B)in (A > B)out 13 10 A0 11 B0 7 A1 9 B1 (A = B)out 3 2 A2 1 B2 15 A3 (A < B)out 12 14 B3 VDD = PIN 16 VSS = PIN 8 MC14585B 1 ÎÎÎÎEÎÎÎÎLEÎÎÎÎCTRÎÎÎÎICAÎÎÎÎL CÎÎÎÎHAÎÎÎÎRACÎÎÎÎTEÎÎÎÎRISÎÎÎÎTICÎÎÎÎS (VÎÎÎÎoltagÎÎÎÎesVRÎÎÎÎDefDeÎÎÎÎrencÎÎÎÎedtoÎÎÎΖV5S5ÎÎÎÎS_C) ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ25_ÎÎÎÎC ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ125ÎÎÎÎ_C ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Characteristic Symbol Vdc Min Max Min Typ # Max Min Max Unit Output Voltage Vin = VDD or 0 “0” Level VOL 5.0 — 0.05 — 10 — 0.05 — 15 — 0.05 — 0 0.05 — 0.05 Vdc 0 0.05 — 0.05 0 0.05 — 0.05 Vin = 0 or VDD “1” Level VOH 5.0 4.95 — 4.95 5.0 10 9.95 — 9.95 10 15 14.95 — 14.95 15 — 4.95 — Vdc — 9.95 — — 14.95 — Input Voltage “0” Level VIL (VO = 4.5 or 0.5 Vdc) (VO = 9.0 or 1.0 Vdc) (VO = 13.5 or 1.5 Vdc) “1” Level VIH (VO = 0.5 or 4.5 Vdc) (VO = 1.0 or 9.0 Vdc) (VO = 1.5 or 13.5 Vdc) Output Drive Current (VOH = 2.5 Vdc) (VOH = 4.6 Vdc) (VOH = 9.5 Vdc) (VOH = 13.5 Vdc) IOH Source 5.0 — 1.5 — 2.25 10 — 3.0 — 4.50 15 — 4.0 — 6.75 5.0 3.5 — 3.5 2.75 10 7.0 — 7.0 5.50 15 11 — 11 8.25 5.0 – 3.0 — – 2.4 – 4.2 5.0 – 0.64 — – 0.51 – 0.88 10 – 1.6 — – 1.3 – 2.25 15 – 4.2 — – 3.4 – 8.8 Vdc 1.5 — 1.5 3.0 — 3.0 4.0 — 4.0 Vdc — 3.5 — — 7.0 — — 11 — mAdc — – 1.7 — — – 0.36 — — – 0.9 — — – 2.4 — (VOL = 0.4 Vdc) (VOL = 0.5 Vdc) (VOL = 1.5 Vdc) Input Current Input Capacitance (Vin = 0) Quiescent Current (Per Package) Sink IOL Iin Cin IDD 5.0 0.64 — 0.51 0.88 10 1.6 — 1.3 2.25 15 4.2 — 3.4 8.8 — 0.36 — mAdc — 0.9 — — 2.4 — 15 — ± 0.1 — ± 0.00001 ± 0.1 — ± 1.0 µAdc — — — — 5.0 7.5 — — pF 5.0 — 5.0 — 0.005 5.0 — 150 µAdc 10 — 10 — 0.010 10 — 300 15 — 20 — 0.015 20 — 600 Total Supply Current**† (Dynamic plus Quiescent, Per Package) (CL = 50 pF on all outputs, all buffers switching) IT 5.0 10 15 IT = (0.6 µA/kHz) f + IDD IT = (1.2 µA/kHz) f + IDD IT = (1.8 µA/kHz) f + IDD µAdc #Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance. ** The formulas given are for the typical characteristics only at 25_C. †To calculate total supply current at loads other than 50 pF: IT(CL) = IT(50 pF) + (CL – 50) Vfk where: IT is in µA (per package), CL in pF, V = (VDD – VSS) in volts, f in kHz is input frequency, and k = 0.001. PIN ASSIGNMENT B2 1 A2 2 (A = B)out 3 u (A B)in 4 t (A B)in 5 (A = B)in 6 A1 7 VSS 8 16 VDD 15 A3 14 B3 u 13 (A B)out t 12 (A B)out 11 B0 10 A0 9 B1 MC14585B 2 MOTOROLA CMOS LOGIC DATA ÎÎÎÎSÎÎÎÎWIÎÎÎÎTCHÎÎÎÎINGÎÎÎÎCHÎÎÎÎARÎÎÎÎAChCaÎÎÎÎTrEacRtÎÎÎÎeISriTsÎÎÎÎtIiCcSÎÎÎÎ* (CÎÎÎÎL=5ÎÎÎÎ0pFÎÎÎÎ,TAÎÎÎÎ=2ÎÎÎÎ5_CÎÎÎÎ)SymÎÎÎÎbolÎÎÎÎÎÎÎÎVÎÎÎÎDDÎÎÎÎÎÎÎÎÎÎÎÎMinÎÎÎÎÎÎÎÎTÎÎÎÎypÎÎÎÎ# ÎÎÎÎÎÎÎÎMaxÎÎÎÎÎÎÎÎUÎÎÎÎnitÎÎÎÎ Output Rise and Fall Time tTLH, tTHL = (1.5 ns/pF) CL + 25 ns tTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns tTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns tTLH, ns tTHL 5.0 — 100 200 10 — 50 100 15 — 40 80 Turn–On, Turn–Off Delay Time tPLH, tPHL = (1.7 ns/pF) CL + 345 ns tPLH, tPHL = (0.66 ns/pF) CL + 147 ns tPLH, tPHL = (0.5 ns/pF) CL + 105 ns tPLH, ns tPHL 5.0 — 430 860 10 — 180 360 15 — 130 260 * The formulas given are for the typical characteristics only at 25_C. #Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance. 20 ns 20 ns VDD A3 1 VSS 2f VDD B3 VSS VOH (A > B)out VOL VOH (A = B)out VOL VOH (A < B)out VOL Inputs (A>B) and (A=B) high, and inputs B2, A2, B1, A1, B0, A0 and (AB) and (A=B) high, and inputs B3, A3, B2, A2, B1, A1, A0, and (AB) (AB) (AB) WORD B = B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 WORD A= A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 VSS VDD VSS B3 A3 B2 A2 B1 A1 B0 A0 OUTPUT MC14585B INPUTS MC14585B 15 A3 OUTPUTS MC14585B WORD B = B11, B10, ..., B0. WORD A = A11, A10, ..., A0. Figure 3. Cascading Comparators LOGIC DIAGRAM 14 B3 2 A2 1 B2 7 A1 9 B1 10 A0 11 B0 5 (A < B)in 6 (A = B)in 4 (A > B)in 12 (A < B)out 3 (A = B)out 13 (A > B)out MC14585B 4 MOTOROLA CMOS LOGIC DATA OUTLINE DIMENSIONS L SUFFIX CERAMIC DIP PACKAGE CASE 620–10 ISSUE V –A– 16 9 –B– 1 8 C L –T– SEATING PLANE F N K E G D 16 PL 0.25 (0.010) M T A S M J 16 PL 0.25 (0.010) M T B S 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. INCHES MILLIMETERS DIM MIN MAX MIN MAX A 0.750 0.785 19.05 19.93 B 0.240 0.295 6.10 7.49 C ––– 0.200 ––– 5.08 D 0.015 0.020 0.39 0.50 E 0.050 BSC 1.27 BSC F 0.055 0.065 1.40 1.65 G 0.100 BSC 2.54 BSC H 0.008 0.015 0.21 0.38 K 0.125 0.170 3.18 4.31 L 0.300 BSC 7.62 BSC M 0_ 15_ 0_ 15_ N 0.020 0.040 0.51 1.01 –A– 16 1 H G P SUFFIX PLASTIC DIP PACKAGE CASE 648–08 ISSUE R 9 B 8 F C L S –T– SEATING PLANE K J M D 16 PL 0.25 (0.010) M 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. INCHES MILLIMETERS DIM MIN MAX MIN MAX A 0.740 0.770 18.80 19.55 B 0.250 0.270 6.35 6.85 C 0.145 0.175 3.69 4.44 D 0.015 0.021 0.39 0.53 F 0.040 0.70 1.02 1.77 G 0.100 BSC 2.54 BSC H 0.050 BSC 1.27 BSC J 0.008 0.015 0.21 0.38 K 0.110 0.130 2.80 3.30 L 0.295 0.305 7.50 7.74 M 0_ 10_ 0_ 10 _ S 0.020 0.040 0.51 1.01 MOTOROLA CMOS LOGIC DATA MC14585B 5 –A– 16 1 OUTLINE DIMENSIONS D SUFFIX PLASTIC SOIC PACKAGE CASE 751B–05 ISSUE J 9 –B– P 8 PL 8 0.25 (0.010) M B S G –T– SEATING PLANE K C D 16 PL 0.25 (0.010) M T B S A S F R X 45_ M J NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: MILLIMETER. 3. DIMENSIONS A AND B DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 9.80 10.00 0.386 0.393 B 3.80 4.00 0.150 0.157 C 1.35 1.75 0.054 0.068 D 0.35 0.49 0.014 0.019 F 0.40 1.25 0.016 0.049 G 1.27 BSC 0.050 BSC J 0.19 0.25 0.008 0.009 K 0.10 0.25 0.004 0.009 M 0_ 7_ 0_ 7_ P 5.80 6.20 0.229 0.244 R 0.25 0.50 0.010 0.019 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. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA/EUROPE/Locations Not Listed: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 or 602–303–5454 MFAX: RMFAX0@email.sps.mot.com – TOUCHTONE 602–244–6609 INTERNET: http://Design–NET.com JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–81–3521–8315 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 MC14585B ◊ 6 *MC14585B/D* MOTOROLA CMOS LMOCG14I5C85DBA/DTA

Top_arrow
回到顶部
EEWORLD下载中心所有资源均来自网友分享,如有侵权,请发送举报邮件到客服邮箱bbs_service@eeworld.com.cn 或通过站内短信息或QQ:273568022联系管理员 高进,我们会尽快处理。