M74HC423B1R STMicroelectronics, M74HC423B1R Datasheet
![no-image](/images/manufacturer_photos/0/6/637/stmicroelectronics_sml.jpg)
M74HC423B1R
Specifications of M74HC423B1R
Related parts for M74HC423B1R
M74HC423B1R Summary of contents
Page 1
... STATE. If the next trigger pulse occurs during the MONOSTABLE MONOSTABLE period longer. Limit for values of Cx and LIMIT < 3. > 3. All inputs are equipped with protection circuits against static discharge and transient excess voltage. M74HC423 SOP TSSOP TUBE T & R M74HC423B1R M74HC423M1R M74HC423RM13TR M74HC423TTR period it makes the 1/11 ...
Page 2
M74HC423 INPUT AND OUTPUT EQUIVALENT CIRCUIT TRUTH TABLE INPUTS Don’t Care SYSTEM DIAGRAM This logic diagram has not be used to estimate propagation delays 2/11 PIN DESCRIPTION PIN ...
Page 3
TIMING CHART BLOCK DIAGRAM 1) Cx, Rx, Dx are external components. ( clamping diode. The external capacitor is charged to Vcc in the stand-by-state, i.e. no trigger. When the supply voltage is turned off ...
Page 4
M74HC423 FUNCTIONAL DESCRIPTION STAND-BY STATE The external capacitor,Cx, is fully charged to Vcc in the stand-by state. Hence, before triggering, transistor Qp and Qn (connected to the Rx/Cx node) are both turned-off. The two comparators that control the timing and ...
Page 5
RECOMMENDED OPERATING CONDITIONS Symbol V Supply Voltage CC V Input Voltage I V Output Voltage O T Operating Temperature op Input Rise and Fall Time External Capacitor External Resistor Rx The Maximum allowable values ...
Page 6
M74HC423 AC ELECTRICAL CHARACTERISTICS (C Symbol Parameter Output Transition TLH THL Time t t Propagation Delay PLH PHL Time ( Propagation Delay PLH PHL Time (CLR - Output ...
Page 7
TEST CIRCUIT C = 50pF or equivalent (includes jig and probe capacitance pulse generator (typically OUT SWITHING CHARACTERISTICS TEST WAVEFORM (f=1MHz; 50% duty cycle) M74HC423 7/11 ...
Page 8
M74HC423 DIM. MIN. a1 0. 8/11 Plastic DIP-16 (0.25) MECHANICAL DATA mm. TYP MAX. 1.65 0.5 0.25 20 8.5 2.54 17.78 7.1 5.1 3.3 1.27 inch MIN. TYP. ...
Page 9
SO-16 MECHANICAL DATA mm. DIM. MIN 0 0. 9 3.8 G 4 TYP MAX. MIN. 1.75 0.2 0.003 1.65 0.46 0.013 0.25 ...
Page 10
M74HC423 DIM. MIN 0.05 A2 0.8 b 0.19 c 0.09 D 4.9 E 6 0° PIN 1 IDENTIFICATION 1 10/11 TSSOP16 MECHANICAL DATA mm. TYP MAX. 1.2 0.15 ...
Page 11
... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...