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| 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 FASTTM 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 1 14 CONNECTION DIAGRAM VCC 14 Q7 13 Q6 12 Q5 11 Q4 10 MR 9 CP 8 14 1 N SUFFIX PLASTIC CASE 646-06 1 A 2 B 3 Q0 4 Q1 5 Q2 6 Q3 7 GND 14 1 D SUFFIX SOIC CASE 751A-02 ORDERING INFORMATION MC54FXXXJ MC74FXXXN MC74FXXXD Inputs Operating Mode Reset (Clear) Shift MR L H H H H A X l l h h B X l h l h Q0 L L L L H Outputs Q1 -Q7 L-L q0-q6 q0-q6 q0-q6 q0-q6 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 Ceramic Plastic SOIC MODE SELECT TABLE LOGIC SYMBOL 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 MC54/74F164 LOGIC DIAGRAM A B D Q CD D Q CD D Q CD D Q CD D Q CD D Q CD D Q CD D Q CD CP MR Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 FUNCTIONAL DESCRIPTION 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 VCC TA Supply Voltage Operating Ambient Temperature Range Parameter 54, 74 54 74 IOH IOL Output Current High Output Current Low 54, 74 54, 74 Min 4.5 -55 0 Typ 5.0 25 25 Max 5.5 125 70 -1.0 20 mA mA Unit V C 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. DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VIK VOH Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage 54, 74 74 VOL IIH Output LOW Voltage Input HIGH Current 2.5 2.7 0.5 20 0.1 IIL IOS ICC Input LOW Current Output Short Circuit Current (Note 2) Power Supply Current -60 35 -0.6 -150 55 Min 2.0 0.8 -1.2 Typ Max Unit V V V V V V A mA mA mA mA Test Conditions Guaranteed Input HIGH Voltage Guaranteed Input LOW Voltage VCC = MIN, IIN = -18 mA IOH = -1.0 mA IOH = -1.0 mA IOL = 20 mA VCC = MIN VCC = 4.75 V VCC = MIN VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V VCC = MAX, VIN = 0.5 V VCC = MAX, VOUT = 0 V 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 54/74F TA = + 25C VCC = + 5.0 V CL = 50 pF Symbol fmax tPLH tPHL tPHL Parameter Maximum Clock Frequency Propagation Delay CP to Qn Propagation Delay MR to Qn Min 80 3.0 5.0 5.5 Typ 90 6.0 7.5 10.5 8.0 10 13 Max 54F TA = -55C to +125C VCC = 5.0 V 10% CL = 50 pF Min 70 3.0 5.0 5.5 11 13 16 Max 74F TA = 0C to + 70C VCC = 5.0 V 10% CL = 50 pF Min 80 3.0 5.0 5.5 9.0 11 14 ns Max Unit MHz ns AC OPERATING REQUIREMENTS 54/74F TA = + 25C VCC = + 5.0 V Symbol ts(H) ts(L) th(H) th(L) tw(H) tw(L) tw(L) trec MR Pulse Width, LOW Recovery Time, MR to CP Parameter Setup Time, HIGH or LOW Dn to CP Hold Time, HIGH or LOW Dn to CP CP Pulse Width, HIGH or LOW Min 7.0 7.0 1.0 1.0 4.0 7.0 7.0 7.0 Typ Max 54F TA = -55C to +125C VCC = 5.0 V 10% Min 7.0 7.0 1.0 1.0 4.0 7.0 7.0 7.0 Max 74F TA = 0C to + 70C VCC = + 5.0 V 10% Min 7.0 7.0 1.0 1.0 4.0 7.0 7.0 7.0 ns ns ns ns Max Unit FAST AND LS TTL DATA 4-81 |
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