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| INTEGRATED CIRCUITS DATA SHEET For a complete data sheet, please also download: * The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications * The IC06 74HC/HCT/HCU/HCMOS Logic Package Information * The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines 74HC/HCT173 Quad D-type flip-flop; positive-edge trigger; 3-state Product specification File under Integrated Circuits, IC06 December 1990 Philips Semiconductors Product specification Quad D-type flip-flop; positive-edge trigger; 3-state FEATURES * Gated input enable for hold (do nothing) mode * Gated output enable control * Edge-triggered D-type register * Asynchronous master reset * Output capability: bus driver * ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT173 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A. The 74HC/HCT173 are 4-bit parallel load registers with clock enable control, 3-state buffered outputs (Q0 to Q3) and master reset (MR). When the two data enable inputs (E1 and E2) are LOW, the data on the Dn inputs is loaded into the register QUICK REFERENCE DATA GND = 0 V; Tamb = 25 C; tr = tf = 6 ns 74HC/HCT173 synchronously with the LOW-to-HIGH clock (CP) transition. When one or both En inputs are HIGH one set-up time prior to the LOW-to-HIGH clock transition, the register will retain the previous data. Data inputs and clock enable inputs are fully edge-triggered and must be stable only one set-up time prior to the LOW-to-HIGH clock transition. The master reset input (MR) is an active HIGH asynchronous input. When MR is HIGH, all four flip-flops are reset (cleared) independently of any other input condition. The 3-state output buffers are controlled by a 2-input NOR gate. When both output enable inputs (OE1 and OE2) are LOW, the data in the register is presented to the Qn outputs. When one or both OEn inputs are HIGH, the outputs are forced to a high impedance OFF-state. The 3-state output buffers are completely independent of the register operation; the OEn transition does not affect the clock and reset operations. TYPICAL SYMBOL tPHL/ tPLH PARAMETER propagation delay CP to Qn MR to Qn maximum clock frequency input capacitance power dissipation capacitance per flip-flop notes 1 and 2 CONDITIONS HC CL = 15 pF; VCC = 5 V 17 13 88 3.5 20 17 17 88 3.5 20 ns ns MHz pF pF HCT UNIT fmax CI CPD Notes 1. CPD is used to determine the dynamic power dissipation (PD in W): PD = CPD x VCC2 x fi + (CL x VCC2 x fo) where: fi = input frequency in MHz fo = output frequency in MHz (CL x VCC2 x fo) = sum of outputs CL = output load capacitance in pF VCC = supply voltage in V 2. For HC the condition is VI = GND to VCC For HCT the condition is VI = GND to VCC -1.5 V ORDERING INFORMATION See "74HC/HCT/HCU/HCMOS Logic Package Information". December 1990 2 Philips Semiconductors Product specification Quad D-type flip-flop; positive-edge trigger; 3-state PIN DESCRIPTION PIN NO. 1, 2 3, 4, 5, 6 7 8 9, 10 14, 13, 12, 11 15 16 SYMBOL OE1, OE2 Q0 to Q3 CP GND E1, E2 D0 to D3 MR VCC NAME AND FUNCTION output enable input (active LOW) 3-state flip-flop outputs clock input (LOW-to-HIGH, edge-triggered) ground (0 V) data enable inputs (active LOW) data inputs asynchronous master reset (active HIGH) positive supply voltage 74HC/HCT173 Fig.1 Pin configuration. Fig.2 Logic symbol. Fig.3 IEC logic symbol. December 1990 3 Philips Semiconductors Product specification Quad D-type flip-flop; positive-edge trigger; 3-state 74HC/HCT173 Fig.4 Functional diagram. FUNCTION TABLE INPUTS REGISTER OPERATING MODES MR reset (clear) parallel load hold (no change) H L L L L CP X X X E1 X l l h X l l X h E2 X Dn X l h X X Qn (register) L L H qn qn OUTPUTS Q0 L H Z Z Q1 L H Z Z Q2 L H Z Z Q3 L H Z Z OUTPUTS INPUTS 3-STATE BUFFER OPERATING MODES Qn (register) read disabled Notes 1. H = HIGH voltage level h = HIGH voltage level one set-up time prior to the LOW-to-HIGH CP transition L = LOW voltage level I = LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition q = lower case letters indicate the state of the referenced input (or output) one set-up time prior to the LOW-to-HIGH CP transition X = don't care Z = high impedance OFF-state = LOW-to-HIGH CP transition L H X X OE1 OE2 L L H X L L X H December 1990 4 Philips Semiconductors Product specification Quad D-type flip-flop; positive-edge trigger; 3-state 74HC/HCT173 Fig.5 Logic diagram. December 1990 5 Philips Semiconductors Product specification Quad D-type flip-flop; positive-edge trigger; 3-state DC CHARACTERISTICS FOR 74HC For the DC characteristics see "74HC/HCT/HCU/HCMOS Logic Family Specifications". Output capability: bus driver ICC category: MSI AC CHARACTERISTICS FOR 74HC GND = 0 V; tr = tf = 6 ns; CL = 50 pF Tamb (C) 74HC SYMBOL PARAMETER +25 -40 to +85 -40 to +125 max. 265 53 45 225 45 38 225 45 38 225 45 38 90 18 15 120 24 20 120 24 20 90 18 15 150 30 26 90 18 15 ns 74HC/HCT173 TEST CONDITIONS UNIT V WAVEFORMS CC (V) 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 Fig.6 min. typ. max. min. max. min. tPHL/ tPLH propagation delay CP to Qn propagation delay MR to Qn 3-state output enable time OEn to Qn 3-state output disable time OEn to Qn output transition time 55 20 16 44 16 13 52 19 15 52 19 15 14 5 4 80 16 14 80 16 14 60 12 10 100 20 17 60 12 10 14 5 4 14 5 4 -8 -3 -2 33 12 10 17 6 5 175 35 30 150 30 26 150 30 26 150 30 26 60 12 10 100 20 17 100 20 17 75 15 13 125 25 21 75 15 13 220 44 37 190 38 33 190 38 33 190 38 33 75 15 13 tPHL ns Fig.7 tPZH/ tPZL ns Fig.8 tPHZ/ tPLZ ns Fig.8 tTHL/ tTLH ns Fig.6 tW clock pulse width HIGH or LOW master reset pulse width; HIGH removal time MR to CP set-up time En to CP set-up time Dn to CP ns Fig.6 tW ns Fig.7 trem ns Fig.7 tsu ns Fig.9 tsu ns Fig.9 December 1990 6 Philips Semiconductors Product specification Quad D-type flip-flop; positive-edge trigger; 3-state 74HC/HCT173 Tamb (C) 74HC SYMBOL PARAMETER +25 -17 -6 -5 -11 -4 -3 26 80 95 -40 to +85 -40 to +125 max. ns TEST CONDITIONS WAVEFORMS UNIT V CC (V) 2.0 4.5 6.0 2.0 4.5 6.0 2.0 4.5 6.0 Fig.9 min. typ. max. min. max. min. th hold time En to CP hold time Dn to CP maximum clock pulse frequency 0 0 0 1 1 1 6.0 30 35 0 0 0 1 1 1 4.8 24 28 0 0 0 1 1 1 4.0 20 24 th ns Fig.9 fmax MHz Fig.6 December 1990 7 Philips Semiconductors Product specification Quad D-type flip-flop; positive-edge trigger; 3-state DC CHARACTERISTICS FOR 74HCT For the DC characteristics see "74HC/HCT/HCU/HCMOS Logic Family Specifications". Output capability: bus driver ICC category: MSI Note to HCT types 74HC/HCT173 The value of additional quiescent supply current (ICC) for a unit load of 1 is given in the family specifications. To determine ICC per input, multiply this value by the unit load coefficient shown in the table below. INPUT OE1, OE2 MR E1, E2 Dn CP UNIT LOAD COEFFICIENT 0.50 0.60 0.40 0.25 1.00 December 1990 8 Philips Semiconductors Product specification Quad D-type flip-flop; positive-edge trigger; 3-state AC CHARACTERISTICS FOR 74HCT GND = 0 V; tr = tf = 6 ns; CL = 50 pF Tamb (C) 74HCT SYMBOL PARAMETER +25 -40 to +85 -40 to +125 74HC/HCT173 TEST CONDITIONS UNIT V CC (V) ns ns ns ns ns ns ns ns ns ns ns ns MHz 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 WAVEFORMS min. typ. max. min. max. min. max. tPHL/ tPLH tPHL tPZH/ tPZL tPHZ/ tPLZ tTHL/ tTLH tW tW trem tsu tsu th th fmax propagation delay CP to Qn propagation delay MR to Qn 3-state output enable time OEn to Qn 3-state output disable time OEn to Qn output transition time clock pulse width HIGH or LOW master reset pulse width; HIGH removal time MR to CP set-up time En to CP set-up time Dn to CP hold time En to CP hold time Dn to CP maximum clock pulse frequency 16 15 12 22 12 0 0 30 20 20 20 19 5 7 6 -2 13 7 -6 -3 80 40 37 35 30 12 20 19 15 28 15 0 0 24 50 46 44 38 15 24 22 18 33 18 0 0 20 60 56 53 45 19 Fig.6 Fig.7 Fig.8 Fig.8 Fig.6 Fig.6 Fig.7 Fig.7 Fig.9 Fig.9 Fig.9 Fig.9 Fig.6 December 1990 9 Philips Semiconductors Product specification Quad D-type flip-flop; positive-edge trigger; 3-state AC WAVEFORMS 74HC/HCT173 (1) HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V. (1) HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V. Fig.6 Waveforms showing the clock (CP) to output (Qn) propagation delays, the clock pulse width, the output transition times and the maximum clock pulse frequency. Fig.7 Waveforms showing the master reset (MR) pulse width, the master reset to output (Qn) propagation delays and the master reset to clock (CP) removal time. The shaded areas indicate when the input is permitted to change for predictable output performance. (1) HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V. Fig.9 Waveforms showing the data set-up and hold times from input (En, Dn) to clock (CP). (1) HC : VM = 50%; VI = GND to VCC. HCT: VM = 1.3 V; VI = GND to 3 V. Fig.8 Waveforms showing the 3-state enable and disable times. PACKAGE OUTLINES See "74HC/HCT/HCU/HCMOS Logic Package Outlines". December 1990 10 |
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