14 Stage Ripple-Carry Binary Counter/Divider High-Voltage Silicon-Gate CMOS

Transcription

1 TECHNICAL DATA IW020B 1 Stage Ripple-Carry Binary Counter/Divider High-oltage Silicon-Gate CMOS The IW020B is ripple-carry binary counter. All counter stages are master-slave flip-flops. The state of a counter advances one count on the negative traition of each input pulse; a high level on the RESET line resets the counter to its all zeros state. Schmitt trigger action on the input-pulse line permits unlimited rise and fall times. Operating oltage Range: 3.0 to 18 Maximum input current of 1 µa at 18 over full packagetemperature range; 0 na at 18 and 25 C Noise margin (over full package temperature range): 1.0 supply 2.0 supply 2.5 supply ORDERING INFORMATION IW020BN Plastic IW020BDW SOIC T A = -55 to 125 C for all packages LOGIC DIAGRAM PIN ASSIGNMENT FUNCTION TABLE Inputs Output Clock Reset Output state L No change PIN 16 = CC PIN 8 = GND L Advance to next state X H All Outputs are low X=don t care 39

2 MAXIMUM RATINGS * Symbol Parameter alue Unit CC DC Supply oltage (Referenced to GND) -0.5 to +20 IN DC Input oltage (Referenced to GND) -0.5 to CC +0.5 OUT DC Output oltage (Referenced to GND) -0.5 to CC +0.5 I IN DC Input Current, per Pin ± ma P D Power Dissipation in Still Air, Plastic DIP+ SOIC Package+ P D Power Dissipation per Output Traistor 0 mw Tstg Storage Temperature -65 to +0 C T L Lead Temperature, 1 mm from Case for 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 Conditio. +Derating - Plastic DIP: - mw/ C from 65 to 125 C SOIC Package: : - 7 mw/ C from 65 to 125 C mw 2 C RECOMMENDED OPERATING CONDITIONS Symbol Parameter Min Max Unit CC DC Supply oltage (Referenced to GND) IN, OUT DC Input oltage, Output oltage (Referenced to GND) 0 CC T A Operating Temperature, All Package Types C This device contai protection circuitry to guard agait damage due to high static voltages or electric fields. However, precautio must be taken to avoid applicatio of any voltage higher than maximum rated voltages to this high-impedance circuit. For proper operation, IN and OUT should be cotrained to the range GND ( IN or OUT ) CC. Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or CC ). Unused outputs must be left open. 0

3 DC ELECTRICAL CHARACTERISTICS(oltages Referenced to GND) CC Guaranteed Limit Symbol Parameter Test Conditio -55 C 25 C 125 C IH IL OH OL I IN I CC I OL I OH Minimum High-Level Input oltage Maximum Low -Level Input oltage Minimum High-Level Output oltage Maximum Low-Level Output oltage Maximum Input Leakage Current Maximum Quiescent Supply Current (per Package) Minimum Output Low (Sink) Current Minimum Output High (Source) Current OUT =0.5 or CC OUT =1.0 or CC OUT =1.5 or CC OUT =0.5 or CC OUT =1.0 or CC OUT =1.5 or CC IN =GND or CC IN =GND or CC Unit IN = GND or CC 18 ±0.1 ±0.1 ±1.0 µa IN = GND or CC 20 IN = GND or CC U OL =0. U OL =0.5 U OL =1.5 IN = GND or CC U OH =2.5 U OH =.6 U OH =9.5 U OH = µa ma ma 1

4 AC ELECTRICAL CHARACTERISTICS(C L =50pF, R L =kω, Input t r =t f =20 ) CC Guaranteed Limit Symbol Parameter -55 C 25 C 125 C Unit f max Maximum Clock Frequency(Figure 1) t PLH, t PHL Maximum Propagation Delay, Clock to Q1 (Figure 1) t PLH, t PHL Maximum Propagation Delay, Q n to Q n +1 (Figure 3) t PHL t TLH, t THL Maximum Propagation Delay, Reset to Any Q (Figure 2) Maximum Output Traition Time, Any Output (Figure 1) C IN Maximum Input Capacitance pf MHz TIMING REQUIREMENTS (C L =50pF, R L =kω, Input t r =t f =20 ) CC Guaranteed Limit Symbol Parameter -55 C 25 C 125 C Unit t w Minimum Pulse Width, Clock (Figure 1) t w Minimum Pulse Width, Reset (Figure 2) t rem Minimum Removal Time, Reset(Figure 2) t r, t f Maximum Input Rise and Fall Times, Clock (Figure 1) Unlimited µs 2

5 Figure 1. Switching Waveforms Figure 2. Switching Waveforms Figure 3. Switching Waveforms 3

6 TIMING DIAGRAM EXPANDED LOGIC DIAGRAM

7 This datasheet has been downloaded from: Datasheets for electronic components.