MC54/74F374 OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS The MC54/74F374 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 bus oriented applications. A buffered Clock (CP) and Output Enable (OE) are common to all flip-flops. • • • • OCTAL D-TYPE FLIP-FLOP WITH 3-STATE OUTPUTS Edge-triggered D-Type Inputs Buffered Positive Edge-triggered Clock 3-State Outputs for Bus-Oriented Applications ESD > 4000 Volts FAST SCHOTTKY TTL CONNECTION DIAGRAM (TOP VIEW) VCC 20 O7 19 D7 18 D6 17 O6 16 O5 15 D5 14 D4 13 O4 12 J SUFFIX CERAMIC CASE 732-03 CP 11 20 1 N SUFFIX PLASTIC CASE 738-03 20 1 1 2 3 4 5 6 7 8 9 10 OE O0 D0 D1 O1 O2 D2 D3 O3 GND DW SUFFIX SOIC CASE 751D-03 20 1 FUNCTION TABLE Inputs Dn Outputs OE On H L H L L L H Z X CP X ORDERING INFORMATION MC54FXXXJ Ceramic MC74FXXXN Plastic MC74FXXXDW SOIC H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care Z = High Impedance LOGIC SYMBOL 3 11 1 4 7 8 13 14 17 18 D0 D1 D2 D3 D4 D5 D6 D7 CP OE O0 O1 O2 O3 O4 O5 O6 O7 2 5 6 9 12 15 16 19 VCC = PIN 20 GND = PIN 10 FAST AND LS TTL DATA 4-170 MC54/74F374 FUNCTIONAL DESCRIPTION The F374 consists of eight edge-triggered 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 D CP D CP D CP D CP D CP D CP D CP D Q Q Q Q Q Q Q Q CP Q Q Q Q Q Q Q Q OE O0 O1 O2 O3 O4 O5 O6 O7 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter Min Typ Max 2.0 Unit Test Conditions VIH Input HIGH Voltage V Guaranteed Input HIGH Voltage VIL Input LOW Voltage 0.8 V Guaranteed Input LOW Voltage VIK Input Clamp Diode Voltage –1.2 V IIN = –18 mA VCC = MIN VOH Output HIGH Voltage 54, 74 2.4 3.3 V IOH = – 3.0 mA VCC = 4.5 V 74 2.7 3.3 V IOH = – 3.0 mA VCC = 4.75 V 0.5 V IOL = 24 mA VCC = MIN VOL Output LOW Voltage 0.35 IOZH Output OFF Current — HIGH 50 µA VOUT = 2.7 V VCC = MAX IOZL Output OFF Current — LOW –50 µA VOUT = 0.5 V VCC = MAX IIH Input HIGH Current 20 µA VIN = 2.7 V VCC = MAX 100 µA VIN = 7.0 V VCC = MAX IIL Input LOW Current IOS Output Short Circuit Current (Note 2) ICCZ Power Supply Current (All Outputs OFF) –60 55 –0.6 mA VIN = 0.5 V VCC = MAX –150 mA VOUT = 0 V VCC = MAX 86 mA Dn, = GND VCC = MAX OE = 4.5 V NOTES: 1. For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions for the applicable device type. 2. Not more than one output should be shorted at a time, nor for more than 1 second. FAST AND LS TTL DATA 4-171 MC54/74F374 GUARANTEED OPERATING RANGES Symbol Parameter VCC Supply Voltage TA Operating Ambient Temperature Range Min Typ Max Unit 54, 74 4.5 5.0 5.5 V 54 –55 25 125 °C 74 0 25 70 IOH Output Current — HIGH 54, 74 –3.0 mA IOL Output Current — LOW 54, 74 24 mA AC CHARACTERISTICS Symbol Parameter Min 54/74F 54F 74F TA = +25°C TA = –55°C to +125°C TA = 0°C to +70°C VCC = +5.0 V VCC = 5.0 V ± 10% VCC = 5.0 V ± 10% CL = 50 pF CL = 50 pF CL = 50 pF Typ fmax Maximum Clock Frequency 100 tPLH Propagation Delay 4.0 6.5 tPHL CP to On 4.0 tPZH Output Enable Time 2.0 tPZL tPHZ Output Disable Time tPLZ Max Min Max 60 8.5 4.0 6.5 8.5 9.0 11.5 2.0 5.8 2.0 2.0 Min Max 70 Unit MHz 10.5 4.0 10 4.0 11 4.0 10 2.0 14 2.0 12.5 7.5 2.0 10 2.0 8.5 5.3 7.0 2.0 8.0 2.0 8.0 4.3 5.5 2.0 7.5 2.0 6.5 ns ns ns AC OPERATING REQUIREMENTS Symbol Parameter Min 54/74F 54F 74F TA = +25°C TA = –55°C to +125°C TA = 0°C to +70°C VCC = +5.0 V VCC = 5.0 V ± 10% VCC = 5.0 V ± 10% Typ Max Min Max Min ts (H) Setup Time, HIGH or LOW 2.0 2.5 2.0 ts (L) Dn to CP 2.0 2.0 2.0 th (H) Hold Time, HIGH or LOW 2.0 2.0 2.0 th (L) Dn to CP 2.0 2.5 2.0 tw (H) CP Pulse Width, 7.0 7.0 7.0 tw (L) HIGH or LOW 6.0 6.0 6.0 FAST AND LS TTL DATA 4-172 Max Unit ns ns