OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS The MC74AC374/74ACT374 is a high-speed, low-power octal D-type flip-flop featuring separate D-type inputs for each flip-flop and 3-state outputs for busoriented applications. A buffered Clock (CP) and Output Enable (OE) are common to all flip-flops. • • • • • • • • • Buffered Positive Edge-Triggered Clock 3-State Outputs for Bus-Oriented Applications Outputs Source/Sink 24 mA See MC74AC273 for Reset Version See MC74AC377 for Clock Enable Version See MC74AC373 for Transparent Latch Version See MC74AC574 for Broadside Pinout Version See MC74AC564 for Broadside Pinout Version with Inverted Outputs ′ACT374 Has TTL Compatible Inputs VCC O7 D7 D6 O6 O5 D5 D4 O4 CP 20 19 18 17 16 15 14 13 12 11 N SUFFIX CASE 738-03 PLASTIC DW SUFFIX CASE 751D-04 PLASTIC 1 2 3 4 5 6 7 8 9 10 OE O0 D0 D1 O1 O2 D2 D3 O3 GND LOGIC SYMBOL PIN NAMES D0–D7 CP OE O0–O7 D0 D1 D2 D3 D4 D5 D6 D7 CP Data Inputs Clock Pulse Input 3-State Output Enable Input 3-State Outputs OE O0 O1 O2 O3 O4 O5 O6 O7 TRUTH TABLE Inputs Dn H L X Outputs CP OE On X L L H H L Z H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance = LOW-to-HIGH Transition FACT DATA 5-1 MC74AC374 MC74ACT374 FUNCTIONAL DESCRIPTION The MC74AC374/74ACT374 consists of eight edgetriggered flip-flops with individual D-type inputs and 3-state true outputs. The buffered clock and buffered Output Enable are common to all flip-flops. The eight flip-flops will store the state of their individual D inputs that meet the setup and hold time requirements on the LOW-to-HIGH Clock (CP) transition. With the Output Enable (OE) LOW, the contents of the eight flip-flops are available at the outputs. When the OE is HIGH, the outputs go to the high impedance state. Operation of the OE input does not affect the state of the flip-flops. LOGIC DIAGRAM D0 D1 D2 D3 D4 D5 D6 D7 CP CP Q D Q CP Q D Q CP Q D Q CP Q D Q CP Q D Q CP Q D Q CP Q D Q CP Q D Q OE O0 O1 O2 O3 O4 O5 O6 O7 Please note that this diagram is provided only for the understanding of logic operations and should not be used to estimate propagation delays. MAXIMUM RATINGS* Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) –0.5 to +7.0 V Vin DC Input Voltage (Referenced to GND) –0.5 to VCC +0.5 V Vout DC Output Voltage (Referenced to GND) –0.5 to VCC +0.5 V Iin DC Input Current, per Pin ±20 mA Iout DC Output Sink/Source Current, per Pin ±50 mA ICC DC VCC or GND Current per Output Pin ±50 mA Tstg Storage Temperature –65 to +150 °C * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. RECOMMENDED OPERATING CONDITIONS Symbol Parameter VCC Supply Voltage Vin, Vout DC Input Voltage, Output Voltage (Ref. to GND) tr, tf Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs tr, tf Input Rise and Fall Time (Note 2) ′ACT Devices except Schmitt Inputs TJ Junction Temperature (PDIP) TA Operating Ambient Temperature Range IOH IOL Min Typ Max ′AC 2.0 5.0 6.0 ′ACT 4.5 5.0 5.5 0 VCC VCC @ 3.0 V 150 VCC @ 4.5 V 40 VCC @ 5.5 V 25 VCC @ 4.5 V 10 VCC @ 5.5 V 8.0 Unit V V ns/V ns/V 140 °C 85 °C Output Current — High –24 mA Output Current — Low 24 mA –40 1. Vin from 30% to 70% VCC; see individual Data Sheets for devices that differ from the typical input rise and fall times. 2. Vin from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times. FACT DATA 5-2 25 MC74AC374 MC74ACT374 DC CHARACTERISTICS Symbol Parameter VCC (V) 74AC 74AC TA = +25°C TA = –40°C to +85°C Typ VIH VIL VOH Conditions Guaranteed Limits Minimum High Level Input Voltage 3.0 4.5 5.5 1.5 2.25 2.75 2.1 3.15 3.85 2.1 3.15 3.85 V VOUT = 0.1 V or VCC – 0.1 V Maximum Low Level Input Voltage 3.0 4.5 5.5 1.5 2.25 2.75 0.9 1.35 1.65 0.9 1.35 1.65 V VOUT = 0.1 V or VCC – 0.1 V Minimum High Level Output Voltage 3.0 4.5 5.5 2.99 4.49 5.49 2.9 4.4 5.4 2.9 4.4 5.4 V 2.56 3.86 4.86 2.46 3.76 4.76 0.1 0.1 0.1 0.1 0.1 0.1 3.0 4.5 5.5 0.36 0.36 0.36 0.44 0.44 0.44 3.0 4.5 5.5 VOL Unit Maximum Low Level Output Voltage 3.0 4.5 5.5 0.002 0.001 0.001 IOUT = –50 µA V *VIN = VIL or VIH –12 mA IOH –24 mA –24 mA IOUT = 50 µA V V *VIN = VIL or VIH 12 mA IOL 24 mA 24 mA IIN Maximum Input Leakage Current 5.5 ±0.1 ±1.0 µA VI = VCC, GND IOZ Maximum 3-State Current 5.5 ±0.5 ±5.0 µA VI (OE) = VIL, VIH VI = VCC, GND VO = VCC, GND 5.5 75 mA VOLD = 1.65 V Max 5.5 –75 mA VOHD = 3.85 V Min 80 µA VIN = VCC or GND IOLD IOHD ICC †Minimum Dynamic Output Current Maximum Quiescent Supply Current 5.5 8.0 * All outputs loaded; thresholds on input associated with output under test. † Maximum test duration 2.0 ms, one output loaded at a time. Note: IIN and ICC @ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V VCC. FACT DATA 5-3 MC74AC374 MC74ACT374 AC CHARACTERISTICS (For Figures and Waveforms — See Section 3) Symbol Parameter VCC* (V) 74AC 74AC TA = +25°C CL = 50 pF TA = –40°C to +85°C CL = 50 pF Min Typ Max Min Unit Fig. No. MHz 3-3 Max fmax Maximum Clock Frequency 3.3 5.0 60 100 110 155 60 100 tPLH Propagation Delay CP to On 3.3 5.0 3.0 2.5 11 8.0 13.5 9.5 1.5 1.5 15.5 10.5 ns 3-6 tPHL Propagation Delay CP to On 3.3 5.0 2.5 2.0 10 7.0 12.5 9.0 2.0 1.5 14 10 ns 3-6 tPZH Output Enable Time 3.3 5.0 3.0 2.0 9.5 7.0 11.5 8.5 1.5 1.0 13 9.5 ns 3-7 tPZL Output Enable Time 3.3 5.0 2.5 2.0 9.0 6.5 11.5 8.5 1.5 1.0 13 9.5 ns 3-8 tPHZ Output Disable Time 3.3 5.0 3.0 2.0 10.5 8.0 12.5 11 2.0 2.0 14.5 12.5 ns 3-7 tPLZ Output Disable Time 3.3 5.0 2.0 1.5 8.0 6.5 11.5 8.5 1.0 1.0 12.5 10 ns 3-8 Unit Fig. No. * Voltage Range 3.3 V is 3.3 V ±0.3 V. Voltage Range 5.0 V is 5.0 V ±0.5 V. AC OPERATING REQUIREMENTS Symbol Parameter VCC* (V) Typ 74AC 74AC TA = +25°C CL = 50 pF TA = –40°C to +85°C CL = 50 pF Guaranteed Minimum ts Setup Time, HIGH or LOW Dn to CP 3.3 5.0 2.0 1.0 5.5 4.0 6.0 4.5 ns 3-9 th Hold Time, HIGH or LOW Dn to CP 3.3 5.0 –1.0 0 1.0 1.5 1.0 1.5 ns 3-9 tw CP Pulse Width HIGH or LOW 3.3 5.0 4.0 2.5 5.5 4.0 6.0 4.5 ns 3-6 * Voltage Range 3.3 V is 3.3 V ±0.3 V. Voltage Range 5.0 V is 5.0 V ±0.5 V. FACT DATA 5-4 MC74AC374 MC74ACT374 DC CHARACTERISTICS Symbol Parameter VCC (V) 74ACT 74ACT TA = +25°C TA = –40°C to +85°C Typ Guaranteed Limits Unit Conditions VIH Minimum High Level Input Voltage 4.5 5.5 1.5 1.5 2.0 2.0 2.0 2.0 V VOUT = 0.1 V or VCC – 0.1 V VIL Maximum Low Level Input Voltage 4.5 5.5 1.5 1.5 0.8 0.8 0.8 0.8 V VOUT = 0.1 V or VCC – 0.1 V VOH Minimum High Level Output Voltage 4.5 5.5 4.49 5.49 4.4 5.4 4.4 5.4 V 3.86 4.86 3.76 4.76 0.1 0.1 0.1 0.1 4.5 5.5 0.36 0.36 0.44 0.44 V *VIN = VIL or VIH 24 mA IOL 24 mA ±0.1 ±1.0 µA VI = VCC, GND 1.5 mA VI = VCC – 2.1 V ±5.0 µA VI (OE) = VIL, VIH VI = VCC, GND VO = VCC, GND 5.5 75 mA VOLD = 1.65 V Max 5.5 –75 mA VOHD = 3.85 V Min 80 µA VIN = VCC or GND 4.5 5.5 VOL 4.5 5.5 Maximum Low Level Output Voltage IIN Maximum Input Leakage Current 5.5 ∆ICCT Additional Max. ICC/Input 5.5 IOZ Maximum 3-State Current 5.5 IOLD IOHD ICC †Minimum Dynamic Output Current Maximum Quiescent Supply Current 0.001 0.001 0.6 ±0.5 5.5 8.0 IOUT = –50 µA *VIN = VIL or VIH –24 mA IOH –24 mA V IOUT = 50 µA V * All outputs loaded; thresholds on input associated with output under test. † Maximum test duration 2.0 ms, one output loaded at a time. AC CHARACTERISTICS (For Figures and Waveforms — See Section 3) Symbol Parameter VCC* (V) 74ACT 74ACT TA = +25°C CL = 50 pF TA = –40°C to +85°C CL = 50 pF Min Typ Max Min Unit Fig. No. MHz 3-3 Max fmax Maximum Clock Frequency 5.0 100 160 tPLH Propagation Delay CP to On 5.0 2.0 8.5 10 2.0 11.5 ns 3-6 tPHL Propagation Delay CP to On 5.0 2.0 8.0 9.5 1.5 11 ns 3-6 tPZH Output Enable Time 5.0 2.0 8.0 9.5 1.5 10.5 ns 3-7 tPZL Output Enable Time 5.0 1.5 8.0 9.0 1.5 10.5 ns 3-8 tPHZ Output Disable Time 5.0 1.5 8.5 11.5 1.0 12.5 ns 3-7 tPLZ Output Disable Time 5.0 1.5 7.0 8.5 1.0 10 ns 3-8 * Voltage Range 5.0 V is 5.0 V ±0.5 V. FACT DATA 5-5 90 MC74AC374 MC74ACT374 AC OPERATING REQUIREMENTS Symbol Parameter VCC* (V) 74ACT 74ACT TA = +25°C CL = 50 pF TA = –40°C to +85°C CL = 50 pF Typ Unit Fig. No. Guaranteed Minimum ts Setup Time, HIGH or LOW Dn to CP 5.0 1.0 5.0 5.5 ns 3-9 th Hold Time, HIGH or LOW Dn to CP 5.0 0 1.5 1.5 ns 3-9 tw CP Pulse Width HIGH or LOW 5.0 2.5 5.0 5.0 ns 3-6 * Voltage Range 5.0 V is 5.0 V ±0.5 V. CAPACITANCE Symbol Parameter Value Typ Unit Test Conditions CIN Input Capacitance 4.5 pF VCC = 5.0 V CPD Power Dissipation Capacitance 80 pF VCC = 5.0 V FACT DATA 5-6 MC74AC374 MC74ACT374 OUTLINE DIMENSIONS N SUFFIX PLASTIC DIP PACKAGE CASE 738–03 ISSUE E –A– 20 11 1 10 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 B DOES NOT INCLUDE MOLD FLASH. B L C –T– K SEATING PLANE M N E G F J D 20 PL 0.25 (0.010) 20 PL 0.25 (0.010) M T A M M DW SUFFIX PLASTIC SOIC PACKAGE CASE 751D–04 ISSUE E –A– 20 11 –B– 10X P 0.010 (0.25) 1 M B M 10 20X J D 0.010 (0.25) M T A B S S F R X 45 _ C –T– 18X G SEATING PLANE K T B M DIM A B C D E F G J K L M N INCHES MIN MAX 1.010 1.070 0.240 0.260 0.150 0.180 0.015 0.022 0.050 BSC 0.050 0.070 0.100 BSC 0.008 0.015 0.110 0.140 0.300 BSC 0_ 15 _ 0.020 0.040 MILLIMETERS MIN MAX 25.66 27.17 6.10 6.60 3.81 4.57 0.39 0.55 1.27 BSC 1.27 1.77 2.54 BSC 0.21 0.38 2.80 3.55 7.62 BSC 0_ 15_ 0.51 1.01 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 0.150 (0.006) PER SIDE. 5. DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.13 (0.005) TOTAL IN EXCESS OF D DIMENSION AT MAXIMUM MATERIAL CONDITION. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 12.65 12.95 0.499 0.510 B 7.40 7.60 0.292 0.299 C 2.35 2.65 0.093 0.104 D 0.35 0.49 0.014 0.019 F 0.50 0.90 0.020 0.035 G 1.27 BSC 0.050 BSC J 0.25 0.32 0.010 0.012 K 0.10 0.25 0.004 0.009 M 0_ 7_ 0_ 7_ P 10.05 10.55 0.395 0.415 R 0.25 0.75 0.010 0.029 M 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 can and do vary in different applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. 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Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. How to reach us: USA/EUROPE: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036. 1–800–441–2447 JAPAN: Nippon Motorola Ltd.; Tatsumi–SPD–JLDC, Toshikatsu Otsuki, 6F Seibu–Butsuryu–Center, 3–14–2 Tatsumi Koto–Ku, Tokyo 135, Japan. 03–3521–8315 MFAX: [email protected] –TOUCHTONE (602) 244–6609 INTERNET: http://Design–NET.com HONG KONG: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852–26629298 ◊ FACT DATA 5-7 *MC74AC374/D* MC74AC374/D