TECHNICAL DATA IN74ACT651 Octal 3-State Bus Transceivers and D Flip-Flops High-Speed Silicon-Gate CMOS The IN74ACT651 is identical in pinout to the LS/ALS651, HC/HCT651. The IN74ACT651 may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs. These devices consists of bus transceiver circuits, D-type flip-flop, and control circuitry arranged for multiplex transmission of data directly from the data bus or from the internal storage registers. Direction and Output Enable are provided to select the read-time or stored data function. Data on the A or B Data bus, or both, can be stored in the internal D flipflops by low-to-high transitions at the appropriate clock pins (A-to-B Clock or B-to-A Clock) regardless of the select or enable or enable control pins. When A-to-B Source and B-to-A Source are in the real-time transfer mode, it is also possible to store data without using the internal D-type flip-flops by simultaneously enabling Direction and Output Enable. In this configuration each output reinforces its input. Thus, when all other data sources to the two sets of bus lines are at high impedance, each set of bus lines will remain at its last state. The IN74ACT651 has inverted outputs. • TTL/NMOS Compatible Input Levels • Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 4.5 to 5.5 V • Low Input Current: 1.0 µA; 0.1 µA @ 25°C • Outputs Source/Sink 24 mA ORDERING INFORMATION IN74ACT651N Plastic IN74ACT651DW SOIC TA = -40° to 85° C for all packages PIN ASSIGNMENT LOGIC DIAGRAM PIN 24=VCC PIN 12 = GND Rev. 00 IN74ACT651 MAXIMUM RATINGS* Symbol Parameter Value Unit -0.5 to +7.0 V VCC DC Supply Voltage (Referenced to GND) VIN DC Input Voltage (Referenced to GND) -0.5 to VCC +0.5 V DC Output Voltage (Referenced to GND) -0.5 to VCC +0.5 V DC Input Current, per Pin ±20 mA IOUT DC Output Sink/Source Current, per Pin ±50 mA ICC DC Supply Current, VCC and GND Pins ±50 mA PD Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ 750 500 mW -65 to +150 °C 260 °C VOUT IIN Tstg TL Storage Temperature Lead Temperature, 1 mm from Case for 10 Seconds (Plastic DIP or SOIC Package) * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. +Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C SOIC Package: : - 7 mW/°C from 65° to 125°C RECOMMENDED OPERATING CONDITIONS Symbol VCC VIN, VOUT DC Supply Voltage (Referenced to GND) DC Input Voltage, Output Voltage (Referenced to GND) TJ Junction Temperature (PDIP) TA Operating Temperature, All Package Types IOH Output Current - High IOL Output Current - Low tr, tf * Parameter Input Rise and Fall Time (except Schmitt Inputs) * Min Max Unit 4.5 5.5 V 0 VCC V 140 °C +85 °C -24 mA 24 mA 10 8.0 ns/V -40 VCC =4.5 V VCC =5.5 V 0 0 VIN from 0.8 V to 2.0 V This device contains protection circuitry to guard against damage due to high static voltages or electric fields. However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND≤(VIN or VOUT)≤VCC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused outputs must be left open. Rev. 00 IN74ACT651 DC ELECTRICAL CHARACTERISTICS (Voltages Referenced to GND) VCC Symbol Parameter Test Conditions Guaranteed Limits V 25 °C -40°C to 85°C Unit VIH Minimum HighLevel Input Voltage VOUT=0.1 V or VCC-0.1 V 4.5 5.5 2.0 2.0 2.0 2.0 V VIL Maximum Low Level Input Voltage VOUT=0.1 V or VCC-0.1 V 4.5 5.5 0.8 0.8 0.8 0.8 V VOH Minimum HighLevel Output Voltage IOUT ≤ -50 µA 4.5 5.5 4.4 5.4 4.4 5.4 V 4.5 5.5 3.86 4.86 3.76 4.76 4.5 5.5 0.1 0.1 0.1 0.1 VIN=VIH or VIL IOL=24 mA IOL=24 mA 4.5 5.5 0.36 0.36 0.44 0.44 ±0.1 ±1.0 µA 1.5 mA ±6.0 µA * VIN=VIH or VIL IOH=-24 mA IOH=-24 mA VOL Maximum LowLevel Output Voltage IOUT ≤ 50 µA V * IIN Maximum Input Leakage Current VIN=VCC or GND 5.5 ∆ICCT Additional Max. ICC/Input VIN=VCC - 2.1 V 5.5 IOZ Maximum ThreeState Leakage Current VI (OE)= VIH or VIL VI =VCC or GND VO =VCC or GND 5.5 IOHD +Minimum Dynamic Output Current VOLD=1.65 V Max 5.5 75 mA IOHD +Minimum Dynamic Output Current VOHD=3.85 V Min 5.5 -75 mA ICC Maximum Quiescent Supply Current (per Package) VIN=VCC or GND 5.5 80 µA ±0.6 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. Rev. 00 IN74ACT651 AC ELECTRICAL CHARACTERISTICS (VCC=5.0 V ± 10%, CL=50pF,Input tr=tf=3.0 ns) Guaranteed Limits Symbol Parameter 25 °C -40°C to 85°C Min Max Min Max Unit tPLH Propagation Delay, A-to-B Clock or B-to-A Clock to A or B Data Port (Figure 1) 4.0 14.5 3.5 16.5 ns tPHL Propagation Delay, A-to-B Clock or B-to-A Clock to A or B Data Port (Figure 1) 3.5 14.5 3.0 16.5 ns tPLH Propagation Delay, Input A to Output B or Input B to Output A (Figures 2,3) 2.5 11.5 2.0 13.0 ns tPHL Propagation Delay, Input A to Output B or Input B to Output A (Figures 2,3) 2.5 11.5 2.0 13.0 ns tPLH Propagation Delay, A-to-B Source or B-to-A Source to A or B Data Port (Figure 4) 2.5 12.0 2.0 13.5 ns tPHL Propagation Delay, A-to-B Source or B-to-A Source to A or B Data Port (Figure 4) 3.0 12.0 2.5 13.5 ns tPZH Propagation Delay, Output Enable to A Data Port (Figure 5) 2.0 11.5 1.5 13.0 ns tPZL Propagation Delay, Output Enable to A Data Port (Figure 5) 2.5 11.5 2.0 13.0 ns tPHZ Propagation Delay, Output Enable to A Data Port (Figure 5) 3.0 13.0 2.5 14.0 ns tPLZ Propagation Delay, Output Enable to A Data Port (Figure 5) 2.5 12.5 2.0 14.0 ns tPZH Propagation Delay, Direction to B Data Port (Figure 6) 2.5 12.0 2.0 13.5 ns tPZL Propagation Delay, Direction to B Data Port (Figure 6) 2.5 12.0 2.0 13.5 ns tPHZ Propagation Delay, Direction to B Data Port (Figure 6) 3.5 13.5 3.0 14.5 ns tPLZ Propagation Delay, Direction to B Data Port (Figure 6) 3.0 13.5 2.5 15.0 ns CIN Maximum Input Capacitance 4.5 4.5 pF Input/Output Capacitance 15 15 pF COUT Typical @25°C,VCC=5.0 V CPD Power Dissipation Capacitance 60 pF Rev. 00 IN74ACT651 TIMING REQUIREMENTS (VCC=5.0 V ± 10 %, CL=50pF,Input tr=tf=3.0 ns) Guaranteed Limits Symbol Parameter 25 °C -40°C to 85°C Unit tsu Minimum Setup Time, A or B Data Port to A-to-B Clock or B-to-A Clock (Figure 7) 7.0 8.0 ns th Minimum Hold Time, A-to-B Clock or B-to-A Clock to A or B Data Port (Figure 7) 2.5 2.5 ns tw Minimum Pulse Width, A-to-B Clock or B-to-A Clock (Figure 7) 6.0 7.0 ns TIMING DIAGRAM Rev. 00 IN74ACT651 FUNCTION TABLE Dir. OE L H CAB CBA SAB SBA X X* L L X X X* X* X X* A B INPUTS INPUTS Both the A bus and the B bus are inputs. X X Z Z The output functions of the A and B bus are disabled. X X INPUTS INPUTS Both the A and B bus are used for inputs to the internal flip-flops. Data at the bus will be stored on low to high transition of the clock inputs. OUTPUTS INPUTS The A bus are outputs and the B bus are inputs. X L H L L H The data at the B bus are displayed at the A bus. X L H L L H The data at the B bus are displayed at the A bus. The data of the B bus are stored to the internal flip-flops on low to high transition of the clock pulse. X H Qn X The data stored to the internal flip-flops, are displayed at the A bus. X H L H H L The data at the B bus are stored to the internal flip-flops on low to high transition of the clock pulse. The states of the internal flip-flops output directly to the A bus. INPUTS X H H X L X OUTPUTS The A bus are inputs and the B bus are outputs. X* L X H L L H The data at the A bus are displayed at the B bus. X* L X H L L H The data at the B bus are displayed at the A bus. The data of the B bus are stored to the internal flip-flops on low to high transition of the clock pulse. X* H X X Qn The data stored to the internal flip-flops are displayed at the B bus. X* H X H L L H The data at the A bus are stored to the internal flip-flops on low to high transition of the clock pulse. The states of the internal flip-flops output directly to the B bus. OUTPUTS H FUNCTION X OUTPUTS Both the A bus and the B bus are outputs H H Qn Qn The data stored to the internal flip-flops are displayed at the A and B bus respectively. H H Qn Qn The output at the A bus are displayed at the B bus, the output at the B bus are displayed at the A bus respec. X : DON’T CARE Z : HIGH IMPEDANCE Qn : THE DATA STORED TO THE INTERNAL FLIP-FLOPS BY MOST RECENT LOW TO HIGH TRANSITION OF THE CLOCK INPUTS * : THE DATA AT THE A AND B BUS WILL BE STORED TO THE INTERNAL FLIP-FLOPS ON EVERY LOW TO TRANSITION OF THE CLOCK INPUTS Rev. 00 IN74ACT651 SWITCHING DIAGRAMS Figure 1. Switching Waveforms Figure 2. A Data Port = Input, B Data Port = Output Figure 3. A Data Port = Output, B Data Port = Input Figure 4. Switching Waveforms Figure 5. Switching Waveforms Figure 6. Switching Waveforms Figure 7. Switching Waveforms Rev. 00 IN74ACT651 EXPANDED LOGIC DIAGRAM Rev. 00 IN74ACT651 N SUFFIX PLASTIC DIP (MS - 001AF) A Dimension, mm 13 24 Symbol MIN MAX A 31.24 32.51 B 6.1 7.11 B 12 1 C F L 5 .33 D 0.36 0.56 F 1.14 1.78 C -T- SEATING G 2.54 H 7.62 PLANE N G M K H D J 0.25 (0.010) M T NOTES: 1. Dimensions “A”, “B” do not include mold flash or protrusions. Maximum mold flash or protrusions 0.25 mm (0.010) per side. J 0° 10° K 2.92 3.81 L 7.62 8.26 M 0.2 0.36 N 0.38 D SUFFIX SOIC (MS - 013AD) Dimension, mm A 24 13 H B 1 P 12 G R x 45 C -TK D SEATING PLANE 0.25 (0.010) M T C M NOTES: 1. Dimensions A and B do not include mold flash or protrusion. 2. Maximum mold flash or protrusion 0.15 mm (0.006) per side for A; for B ‑ 0.25 mm (0.010) per side. J F Symbol MIN MAX A 15.2 15.6 B 7.4 7.6 C 2.35 2.65 D 0.33 0.51 F 0.4 1.27 G 1.27 H 9.53 M J 0° 8° K 0.1 0.3 M 0.23 0.32 P 10 10.65 R 0.25 0.75 Rev. 00