MC54/74F164 8-BIT SERIAL-IN, PARALLEL-OUT SHIFT REGISTER The MC54/74F164 is a high-speed 8-bit serial-in/parallel-out shift register. Serial data is entered through a 2-input AND gate synchronous with the LOW-to-HIGH transition of the clock. The device features an asynchronous Master Reset which clears the register, setting all outputs LOW independent of the clock. • • • • 8-BIT SERIAL-IN, PARALLEL-OUT SHIFT REGISTER FAST SHOTTKY TTL Typical Shift Frequency of 90 MHz Asynchronous Master Reset Gated Serial Data Input Fully Synchronous Data Transfers J SUFFIX CERAMIC CASE 632-08 14 1 CONNECTION DIAGRAM VCC Q7 Q6 Q5 Q4 MR CP 14 13 12 11 10 9 8 N SUFFIX PLASTIC CASE 646-06 14 1 1 2 3 4 5 6 7 A B Q0 Q1 Q2 Q3 GND D SUFFIX SOIC CASE 751A-02 14 1 ORDERING INFORMATION MC54FXXXJ MC74FXXXN MC74FXXXD MODE SELECT TABLE Inputs Operating Mode Ceramic Plastic SOIC Outputs MR A B Q0 Q1 –Q7 Reset (Clear) L X X L L–L Shift H l l L q0–q6 H l h L q0–q6 H h l L q0–q6 H h h H q0–q6 H(h) = HIGH Voltage Levels L(l) = LOW Voltage Levels X = Don’t Care qn = Lower case letters indicate the state of the referenced input or output one setup time prior to the LOW-to-HIGH clock transition. FAST AND LS TTL DATA 4-79 LOGIC SYMBOL 1 2 8 A B CP MR Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 9 3 4 5 6 10 11 12 13 VCC = PIN 14 GND = PIN 7 MC54/74F164 LOGIC DIAGRAM A B D D Q CD D Q CD D Q CD D Q CD D Q CD D Q CD D Q CD Q CD CP MR Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 FUNCTIONAL DESCRIPTION Each LOW-to-HIGH transition on the Clock (CP) input shifts data one place to the right and enters into Q0 the logical AND of the two data inputs (A • B) that existed before the rising clock edge. A LOW level on the Master Reset (MR) input overrides all other inputs and clears the register asynchronously, forcing all Q outputs LOW. The F164 is an edge-triggered 8-bit shift register with serial data entry and an output from each of the eight stages. Data is entered serially through one of two inputs (A or B); either of these inputs can be used as an active HIGH Enable for data entry through the other input. An unused input must be tied HIGH. 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 –1.0 mA IOL Output Current Low 54, 74 20 mA DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol Parameter Min Typ Max VIH Input HIGH Voltage 2.0 VIL Input LOW Voltage VIK Input Clamp Diode Voltage VOH Output HIGH Voltage VOL Output LOW Voltage 0.5 IIH Input HIGH Current 54, 74 2.5 74 2.7 IIL Input LOW Current IOS Output Short Circuit Current (Note 2) ICC Power Supply Current –60 35 Unit Test Conditions V Guaranteed Input HIGH Voltage 0.8 V Guaranteed Input LOW Voltage –1.2 V VCC = MIN, IIN = –18 mA V IOH = –1.0 mA VCC = MIN V IOH = –1.0 mA VCC = 4.75 V V IOL = 20 mA VCC = MIN 20 µA VCC = MAX, VIN = 2.7 V 0.1 mA VCC = MAX, VIN = 7.0 V –0.6 mA VCC = MAX, VIN = 0.5 V –150 mA VCC = MAX, VOUT = 0 V 55 mA A, B = GND, VCC = MAX CP = HIGH, MR = GND 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 4-80 MC54/74F164 AC CHARACTERISTICS Symbol Parameter 54/74F 54F 74F TA = + 25°C VCC = + 5.0 V CL = 50 pF TA = –55°C to +125°C VCC = 5.0 V ± 10% CL = 50 pF TA = 0°C to + 70°C VCC = 5.0 V ± 10% CL = 50 pF Min Typ Max Min Max 70 Min Max fmax Maximum Clock Frequency 80 90 80 tPLH Propagation Delay 3.0 6.0 8.0 3.0 11 3.0 9.0 tPHL CP to Qn 5.0 7.5 10 5.0 13 5.0 11 tPHL Propagation Delay MR to Qn 5.5 10.5 13 5.5 16 5.5 14 Unit MHz ns ns AC OPERATING REQUIREMENTS Symbol Parameter 54/74F 54F 74F TA = + 25°C VCC = + 5.0 V TA = –55°C to +125°C VCC = 5.0 V ± 10% TA = 0°C to + 70°C VCC = + 5.0 V ± 10% Min Typ Max Min Max Min ts(H) Setup Time, HIGH or LOW 7.0 7.0 7.0 ts(L) Dn to CP 7.0 7.0 7.0 th(H) Hold Time, HIGH or LOW 1.0 1.0 1.0 th(L) Dn to CP 1.0 1.0 1.0 tw(H) CP Pulse Width, HIGH or LOW 4.0 4.0 4.0 7.0 7.0 7.0 tw(L) Max Unit ns ns tw(L) MR Pulse Width, LOW 7.0 7.0 7.0 ns trec Recovery Time, MR to CP 7.0 7.0 7.0 ns FAST AND LS TTL DATA 4-81