Datasheet CD4538BC (Fairchild) - 6

AC Electrical Characteristics
(Note 4)
38BC
TA = 25°C, CL = 50 pF, and tr = tf = 20 ns unless otherwise specified
45 Symbol Parameter Conditions Min Typ Max Units D
tTLH, tTHL Output Transition Time VDD = 5V 100 200
C
V ns DD = 10V 50 100 VDD = 15V 40 80 tPLH, tPHL Propagation Delay Time Trigger Operation— A or B to Q or Q VDD = 5V 300 600 V ns DD = 10V 150 300 VDD = 15V 100 220 Reset Operation— CD to Q or Q VDD = 5V 250 500 V ns DD = 10V 125 250 VDD = 15V 95 190 tWL, tWH Minimum Input Pulse Width VDD = 5V 35 70 A, B, or C ns D VDD = 10V 30 60 VDD = 15V 25 50 tRR Minimum Retrigger Time VDD = 5V 0 V ns DD = 10V 0 0 VDD = 15V 0 CIN Input Capacitance Pin 2 or 14 10 pF Other Inputs 5 7.5 PWOUT Output Pulse Width (Q or Q) RX = 100 kΩ VDD = 5V 208 226 244 (
Note:
For Typical Distribution, CX = 0.002 µF VDD = 10V 211 230 248 µs see Figure 6) VDD = 15V 216 235 254 RX = 100 kΩ VDD = 5V 8.83 9.60 10.37 C ms X = 0.1 µF VDD = 10V 9.02 9.80 10.59 VDD = 15V 9.20 10.00 10.80 RX = 100 kΩ VDD = 5V 0.87 0.95 1.03 C s X = 10.0 µF VDD = 10V 0.89 0.97 1.05 VDD = 15V 0.91 0.99 1.07 Pulse Width Match between RX = 100 kΩ VDD = 5V ±1 Circuits in the Same Package C % X = 0.1 µF VDD = 10V ±1 CX = 0.1 µF, RX = 100 kΩ VDD = 15V ±1
Operating Conditions
RX External Timing Resistance 5.0 (Note 5) kΩ CX External Timing Capacitance 0 No Limit pF
Note 4:
AC parameters are guaranteed by DC correlated testing.
Note 5:
The maximum usable resistance RX is a function of the leakage of the Capacitor CX, leakage of the CD4538BC, and leakage due to board layout, surface resistance, etc. www.fairchildsemi.com 6