PI74FCT161T/163T Ω Series) PI74FCT2161T/2163T (25Ω 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 High Speed CMOS Synchronous 4-Bit Binary Counters Product Features • PI74FCT161/163/2161/2163T are pin-compatible with • • • • • • • Product Description Pericom Semiconductor’s PI74FCT series of logic circuits are produced in the Company’s advanced 0.6 micron CMOS technology, achieving industry leading speed grades. All PI74FCT2XXX devices have a built-in 25Ω series resistor on all outputs to reduce noise owing to reflections, thus eliminating an external terminating resistor. bipolar FASTTM Series at a higher speed and lower power consumption 25Ω series resistor on all outputs (FCT2XXX only) TTL input and output levels Low ground bounce outputs (25Ω series only) Extremely low static power Hysteresis on all inputs Industrial operating temperature range: -40°C to + 85°C Packages available: - 16-pin 150 mil wide plastic QSOP (Q) - 16-pin 150 mil wide plastic SOIC (W) - 16-pin 300 mil wide plastic SOIC (S) The PI74FCT161T and PI74FCT163 are high speed CMOS synchronous presettable 4-bit binary counters. The 161 has an asynchronous clear, the 163 has a clocked synchronous clear. Data is preloaded or the counters count on the rising edge of the clock. Count enable inputs and terminal count outputs allow these counters to be cascaded without loss of speed. Preset inputs override count inputs, and clear inputs override both preset and count inputs. All inputs have clamp diodes for undershoot noise suppression. All outputs have ground bounce suppression. Functional Block Diagram Pin Configurations CET TC = FF 25 Ohm (FCT2XXX Only) PE CLR 4-Bit Register D3-C0 Cin Q+Cin MUX 163 Only CEP Q3-Q0 25 Ohm (FCT2XXX Only) MR 1 16 VCC CP 2 15 TC D0 3 14 Q0 D1 4 13 Q1 D2 5 12 Q2 D3 6 11 Q3 CEP 7 8 10 9 CET V GND MR CP PE 161 Only 1 PS2083B 10/08/01 PI74FCT161T/163T (25Ω Ω SERIES) PI74FCT2161T/2163T 4-BIT BINARY COUNTERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Pin Description Pin Name I/O De s cription D3- D0 I Data Inputs Q 3- Q 0 O Data Outputs CP I Clock MR I Master Reset CEP I Counter Enable CET I Count and TC Enable TC O Terminal Count PE I Parallel Load Enable Function Table Inputs Outputs Q3-Q0 MR PE CP DI 161 L X X X X X L L X ↑ X X X H L ↑ X X D3- D0 H H ↑ H H H H ↑ L H H ↑ H H H H Notes: 1. H L X Z ↑ = = = = = CEP CET Function 163 TC L Clear 161 L L Clear 163 D3- D0 D3- D0 X Load Data X Q+1 Q+1 X Count X X Q Q X Count Inhibit P X L X Q Q X Count Inhibit T X X H X F F H Count = 1111 H X X H X 0- E 0- E L Count ≠ 1111 H X X L X X X L TC Inhibit High Voltage Level Low Voltge Level Don’t Care High Impedance Low to High 2 PS2083B 10/08/01 PI74FCT161T/163T (25Ω Ω SERIES) PI74FCT2161T/2163T 4-BIT BINARY COUNTERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ................................................................. –65°C to +150°C Ambient Temperature with Power Applied .................................. -40°C to +85°C Supply Voltage to Ground Potential (Inputs & Vcc Only) .......... –0.5V to +7.0V Supply Voltage to Ground Potential (Outputs & D/O Only) ....... –0.5V to +7.0V DC Input Voltage ......................................................................... –0.5V to +7.0V DC Output Current .................................................................................... 120mA Power Dissipation ......................................................................................... 0.5W Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. DC Electrical Characteristics (Over the Operating Range, TA = -40°C, Vcc = 5.0V ±5%) Te s t Conditions ( 1 ) M in. Typ( 2 ) 2.4 3.0 Parame te rs De s cription M ax. Units VOH Output HIGH Voltage VCC = MIN., VIN = VIH or VIL IOH = - 15.0mA VOL Output LOW Current VCC = MIN., VIN = VIH or VIL IOL = 48mA 0.3 0.50 V VOL Output LOW Current VCC = MIN., VIN = VIH or VIL IOL = 12mA (25 Ohm Series) 0.3 0.50 V VIH Input HIGH Voltage Guaranteed Logic HIGH Level VIL Input LOW Voltage Guaranteed Logic LOW Level IIH Input HIGH Current Vcc = Max. IIL Input LOW Current Vcc = Max. IOZH High Impedance V 2.0 V 0.8 µA VIN = VCC 1 mA VIN = GND -1 µA VOUT = 2.7V 1 µA VOUT = 0.5V -1 µA - 0.7 - 1.2 µA - - 10 0 µA - 60 - 120 mA 200 mV Vcc = Max. IOZL Output Current VIK Clamp Diode Voltage Vcc = Min., IIN = - 18mA IOFF Power Down Disable Vcc = GND., VOUT = 4.5V IOS Short Circuit Current Vcc = Max.( 3 ) , VOUT = GND VH Input Hysteresis Capacitance (TA = 25°C, f = 1 MHz) Parame te rs (4) De s cription Te s t Conditions Typ. M ax. Units CIN Input Capacitance VIN = 0V 6 10 pF COUT Output Capacitance VOUT = 0V 8 12 pF Notes: 1. For Max. or Min. conditions, use the appropriate values specified under Electrical Characteristics for the applicable device type. 2. Typical values are at VCC = 5.0V, +25°C ambient and maximum loading. 3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second. 4. This parameter is determined by device characterization but is not production tested. 3 PS2083B 10/08/01 PI74FCT161T/163T (25Ω Ω SERIES) PI74FCT2161T/2163T 4-BIT BINARY COUNTERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Power Supply Characteristics Parame te rs Te s t Conditions (1) De s cription M in. Typ(2) M ax. Units Quiescent Power Supply Current Vcc =Max. VIN ≥ VHC; VIN ≥ VLC; 0.1 500 µA ∆CCD Supply Current per Input @ TTL HIGH Vcc =Max VIN = 3.4V(3) 0.5 2.5 mA ICCD Supply Current per Input per MHz(4) Vcc =Max., Outputs Open OE = GND T/R = GND or VCC One Bit Toggling, 50% Duty Cycle VIN = VCC; VIN = GND 0.15 0.25 mA/ MHz VIN = VCC; VIN = GND 2.0 4.0(5) VIN = 3.4V VIN = GND 2.3 5.0(5) ICC Vcc =Max., Outputs Open fI = 10 MHz, 50% Duty CycLE T/R = OE = GND One Bit Toggling IC Total Power Supply Current(6) mA Vcc =Max., Outputs Open fI = 10 MHz, 50% Duty Cycle T/R = OE = GND Eight Bit Toggling VIN = VCC; VIN = GND 3.5 6.5(5) VIN = 3.4V VIN = GND 5.5 14.5(5) Notes: 1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device. 2. Typical values are at Vcc = 5.0V, +25°C ambient. 3. Per TTL driven input (VIN = 3.4V); all other inputs at Vcc or GND. 4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations. 5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested. 6. IC =IQUIESCENT + IINPUTS + IDYNAMIC IC = ICC + ∆ICC DHNT + ICCD (fCP/2 + fINI) ICC = Quiescent Current ∆ICC = Power Supply Current for a TTL High Input (VIN = 3.4V) DH = Duty Cycle for TTL Inputs High NT = Number of TTL Inputs at DH ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL) fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices) fI = Input Frequency NI = Number of Inputs at fI All currents are in milliamps and all frequencies are in megahertz. 4 PS2083B 10/08/01 PI74FCT161T/163T (25Ω Ω SERIES) PI74FCT2161T/2163T 4-BIT BINARY COUNTERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Switching Characteristics (Over Operating Range) 161T, 163T, 2161T, 2163T 161AT, 163AT, 2161AT, 2163AT 161CT, 163CT Symbol De s cription(1) Conditions M in. M ax. M in. M ax. M in. M ax. Units tCPQ Propagation Delay CP to QI (161/3) C L = 50pF RL = 500 Ohm 2.0 9.5 2.0 6.2 2.0 5.6 ns tCPQ Propagation Delay CP to QI (2161/3) C L = 50pF RL = 500 Ohm 2.0 9.5 2.0 6.2 tMRQ Propagation Delay MR to QI (161) C L = 50pF RL = 500 Ohm 2.0 13 2.0 8.5 tMRQ Propagation Delay MR to QI (2161) C L = 50pF RL = 500 Ohm 2.0 14 2.0 9.1 tCPTC Propagation Delay CP to TC C L = 50pF RL = 500 Ohm 2.0 15 2.0 9.8 2.0 8.8 ns tCETC Propagation Delay CET to TC C L = 50pF RL = 500 Ohm 1.5 8.5 1.5 5.5 1.5 5.0 ns tMRTC Propagation Delay MR to TC C L = 50pF RL = 500 Ohm 1.5 11.5 1.5 7.5 1.5 6.8 ns ns 2.0 7.8 ns ns Notes: 1. Minimums Test Circuit and Waveforms. 2. Minimum limits are guaranteed but not tested on Propagation Delays. 3. PI74FCT2161 is available only by minimum special order. 5 PS2083B 10/08/01 PI74FCT161T/163T (25Ω Ω SERIES) PI74FCT2161T/2163T 4-BIT BINARY COUNTERS 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Timing Characteristics (Over Operating Range) Symbol De s cription Conditions 161, 163, 2161, 2163 M in M ax 161A, 163A, 2161A ,2163A 161C, 163C, 2161C ,2163C M in M in M ax tS Data Setup Time DI to CP 5.0 4.0 3.5 tH Data Hold Time DI to CP 1. 5 1.5 1. 5 tCH Count Enab. Setup Time CEP, CET to CP 11.5 9.5 8.5 tH Count Enable Hold Time CEP, CET to CP 0 0 0 11.5 9.5 8.5 C L = 50pF RL = 500 Ohm tMRS tPES Control Setup Time MR, PE to CP tMRH tPEH Control Hold Time MR, PE to CP 1.5 1.5 1.5 tCPW Clock Pulse Width(1) HIGH or LOW 5.0 4.0 3.0 tMRW MR Reset Pulse Width(1) (161, 2161) 5.0 4.0 3.0 tMRW Reset Recovery Time(1) MR to CP, (161,2161) 6.0 5.0 4.0 Units M ax ns Notes: 1. See Test Circuit and Waveforms Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 6 PS2083B 10/08/01