Revised January 1999 MM74C90 • MM74C93 4-Bit Decade Counter • 4-Bit Binary Counter General Description The MM74C90 decade counter and the MM74C93 binary counter and complementary MOS (CMOS) integrated circuits constructed with N- and P-channel enhancement mode transistors. The 4-bit decade counter can reset to zero or preset to nine by applying appropriate logic level on the R01, R02, R91 and R92 inputs. Also, a separate flip-flop on the A-bit enables the user to operate it as a divide-by-2, 5 or 10 frequency counter. The 4-bit binary counter can be reset to zero by applying high logic level on inputs R01 and R02, and a separate flip-flop on the A-bit enables the user to operate it as a divide-by-2, -8, or -16 divider. Counting occurs on the negative going edge of the input pulse. All inputs are protected against static discharge damage. Features ■ Wide supply voltage range: ■ Guaranteed noise margin: ■ High noise immunity: 3V to 15V 1V 0.45 VCC (typ.) ■ Low power compatibility: Fan out of 2 TTL driving 74L ■ The MM74C93 follows the MM74L93 Pinout Ordering Code: Order Number Package Number Package Description MM74C90N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide MM74C93N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Connection Diagrams Pin Assignments for DIP MM74C90 MM74C93 Top View Top View © 1999 Fairchild Semiconductor Corporation DS005889.prf www.fairchildsemi.com MM74C90 • MM74C93 4-Bit Decade Counter • 4-Bit Binary Counter October 1987 MM74C90 • MM74C93 Logic Diagrams MM74C90 MM74C93 MM74C90 4-Bit Decade Counter BCD Count Sequence MM74C93 4-Bit Binary Counter Binary Count Sequence Truth Tables Count Output Count QD QC QB QA 0 L L L L 1 L L L 2 L L 3 L L 4 L H 5 L H 6 L H 7 L H 8 H L 9 H L Output QD QC QB 0 L L L L H 1 L L L H H L 2 L L H L H H 3 L L H H L L 4 L H L L L H 5 L H L H H L 6 L H H L H H 7 L H H H L L 8 H L L L L H 9 H L L H 10 H L H L 11 H L H H 12 H H L L 13 H H L H 14 H H H L 15 H H H H Output QA is connected to Input B for BCD count. H = HIGH Level L = LOW Level X = Irrelevant QA Output QA is connected to input B for binary count sequence. H = HIGH Level L = LOW Level X = Irrelevant www.fairchildsemi.com 2 MM74C90 • MM74C93 Function Tables Reset/Count Function Table Reset Inputs Output R01 R02 R91 R92 QD QC QB QA H H L X L L L L H H X L L L L L X X H H H L L H X L X L Count L X L X Count L X X L Count X L L X Count Reset/Count Function Table Reset Output Inputs R01 R02 QD QC QB QA H H L L L L L X Count X L Count 3 www.fairchildsemi.com MM74C90 • MM74C93 Absolute Maximum Ratings(Note 1) Voltage at Any Pin (Note 1) Absolute Maximum VCC −0.3V to VCC +0.3V (Soldering, 10 seconds) −40°C to +85°C Power Dissipation (PD) Dual-In-Line Small Outline 260°C Note 1: “Absolute Maximum Ratings” are those values beyond which the safety of the device cannot be guaranteed. Except for “Operating Temperature Range”, they are not meant to imply that the devices should be operated at these limits. The table of “Electrical Characteristics” provides conditions for actual device operation. 700 mW 500 mW Operating VCC Range −65°C to +150°C Lead Temperature (TL) Operating Temperature Range (TA) MM74C90, MM74C93 18V Storage Temperature Range (TS) 3V to 15V DC Electrical Characteristics Min/Max limits apply across temperature range unless otherwise noted Symbol Parameter Conditions Min Typ Max Units CMOS TO CMOS VIN(1) VIN(0) VOUT(1) VOUT(0) Logical “1” Input Voltage Logical “0” Input Voltage Logical “1” Output Voltage Logical “0” Output Voltage VCC = 5V 3.5 V VCC = 10V 8.0 V VCC = 5V 1.5 V VCC = 10V 2.0 V VCC = 5V, IO = −10 µA 4.5 VCC = 10V, IO = −10 µA 9.0 V V VCC = 5V, IO = +10 µA 0.5 V VCC = 10V, IO = +10 µA 1.0 V 1.0 µA IIN(1) Logical “1” Input Current VCC = 15V, VIN = 15V IIN(0) Logical “0” Input Current VCC = 15V, VIN = 0V ICC Supply Current VCC = 15V 0.005 −1.0 −0.005 0.05 µA 300 µA CMOS/LPTTL INTERFACE VIN(1) Logical “1” Input Voltage MM74C90, MM74C93 VIN(0) MM74C90, MM74C93 VOUT(1) VCC−1.5 V VCC = 4.75V 0.8 V Logical “1” Output Voltage MM74C90, MM74C93 VOUT(0) VCC = 4.75V Logical “0” Input Voltage VCC = 4.75V, IO = −360 µA 2.4 V Logical “0” Output Voltage MM74C90, MM74C93 VCC = 4.75V, IO = −360 µA 0.4 V OUTPUT DRIVE (See Family Characteristics Data Sheet) (Short Circuit Current) ISOURCE ISOURCE ISINK ISINK Output Source Current VCC = 5V, VOUT = 0V (P-Channel) TA = 25°C Output Source Current VCC = 10V, VOUT = 0V (P-Channel) TA = 25°C Output Sink Current VCC = 5V, VOUT = VCC (N-Channel) TA = 25°C Output Sink Current VCC = 10V, VOUT = VCC (N-Channel) TA = 25°C www.fairchildsemi.com 4 −1.75 −3.3 mA −8.0 −15 mA 1.75 3.6 mA 8.0 16 mA (Note 2) Symbol tpd0, tpd1 tpd0, tpd1 tpd0, tpd1 tpd0, tpd1 tpd0, tpd1 tpd0, tpd1 tpd0, tpd1 tpd0, tpd1 Typ Max Units Propagation Delay Time Parameter VCC = 5V Conditions Min 200 400 ns from AIN to QA VCC = 10 80 150 ns Propagation Delay Time from VCC = 5V 450 850 ns AIN to QB (MM74C93) VCC = 10V 160 300 ns Propagation Delay Time from VCC = 5V 450 800 ns AIN to QB (MM74C90) VCC = 10V 160 300 ns Propagation Delay Time VCC = 5V 500 1050 ns from AIN to QC (MM74C93) VCC = 10 200 400 ns Propagation Delay Time from VCC = 5V 500 1000 ns AIN to QC (MM74C93) VCC = 10V 200 400 ns Propagation Delay Time from VCC = 5V 600 1200 ns AIN to QD (MM74C93) VCC = 10V 250 500 ns Propagation Delay Time from VCC = 5V 450 800 ns AIN to QD (MM74C90) VCC = 10V 160 300 ns Propagation Delay Time from VCC = 5V 150 300 ns R01 or R02 to QA, QB, QC or QD VCC = 10V 75 150 ns Propagation Delay Time from VCC = 5V 200 400 ns R01 or R02 to QA, QB, QC or QD VCC = 10V 75 150 ns Propagation Delay Time from VCC = 5V 250 500 ns R91 or R92 to QA or QD VCC = 10V 100 200 ns (MM74C93) tpd0, tpd1 (MM74C90) tpd0, tpd1 (MM74C90) tPW tPW tPW tr , tf tW Min. R01 or R02 Pulse Width VCC = 5V 600 250 ns (MM74C93) VCC = 10V 30 125 ns Min. R01 or R02 Pulse Width VCC = 5V 600 250 ns (MM74C90) VCC = 10V 300 125 ns Min. R91 or R92 Pulse Width VCC = 5V 500 200 ns (MM74C90) VCC = 10V 250 100 Maximum Clock Rise VCC = 10V and Fall Time VCC = 10V Minimum Clock Pulse Width VCC = 5V 250 100 VCC = 10V 100 50 VCC = 5V 2 VCC = 10V 5 ns 15 µs 5 µs ns ns fMAX Maximum Clock Frequency CIN Input Capacitance Any Input (Note 3) 5 pF CPD Power Dissipation Capacitance Per Package (Note 4) 45 pF MHz MHz Note 2: AC Parameters are guaranteed by DC correlated testing. Note 3: Capacitance is guaranteed by periodic testing. Note 4: CPD determines the no load ac power consumption of any CMOS device. For complete explanation see Family Characteristics application note— AN-90. 5 www.fairchildsemi.com MM74C90 • MM74C93 AC Electrical Characteristics TA = 25°C, CL = 50 pF, unless otherwise specified MM74C90 • MM74C93 AC Test Circuits MM74C93 MM74C90 Clock rise and fall time tr = tf = 20 ns Clock rise and fall time tr = tf = 20 ns Switching Time Waveforms MM74C90 and MM74C93 are solid line waveforms. Dashed line waveforms are for MM74C90 only. www.fairchildsemi.com 6 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide Package Number N14A LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component in any component of a life support 1. Life support devices or systems are devices or systems device or system whose failure to perform can be reawhich, (a) are intended for surgical implant into the sonably expected to cause the failure of the life support body, or (b) support or sustain life, and (c) whose failure device or system, or to affect its safety or effectiveness. to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the www.fairchildsemi.com user. Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications. MM74C90 • MM74C93 4-Bit Decade Counter • 4-Bit Binary Counter Physical Dimensions inches (millimeters) unless otherwise noted