器件名称: 74LV123A
功能描述: DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS WITH SCHMITT-TRIGGER INPUTS
文件大小: 530.79KB 共23页
简 介:SN54LV123A, SN74LV123A DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS WITH SCHMITTTRIGGER INPUTS
SCLS393O APRIL 1998 REVISED OCTOBER 2005
D 2-V to 5.5-V VCC Operation D Max tpd of 11 ns at 5 V D Typical VOLP (Output Ground Bounce) D D D D
D Ioff Supports Partial-Power-Down Mode D D D D D
Operation Retriggerable for Very Long Output Pulses, up to 100% Duty Cycle Overriding Clear Terminates Output Pulse Glitch-Free Power-Up Reset on Outputs Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II ESD Protection Exceeds JESD 22 2000-V Human-Body Model (A114-A) 200-V Machine Model (A115-A) 1000-V Charged-Device Model (C101)
SN54LV123A . . . FK PACKAGE (TOP VIEW)
<0.8 V at VCC = 3.3 V, TA = 25°C Typical VOHV (Output VOH Undershoot) >2.3 V at VCC = 3.3 V, TA = 25°C Support Mixed-Mode Voltage Operation on All Ports Schmitt-Trigger Circuitry on A, B, and CLR Inputs for Slow Input Transition Rates Edge Triggered From Active-High or Active-Low Gated Logic Inputs
GND
2A
1A 1B 1CLR 1Q 2Q 2Cext 2Rext/Cext GND
1 2 3 4 5 6 7 8
16 15 14 13 12 11 10 9
VCC 1Rext/Cext 1Cext 1Q 2Q 2CLR 2B 2A
1
16 15 1Rext/Cext 14 1Cext 13 1Q 12 2Q 11 2CLR 10 2B
1B 1CLR 1Q 2Q 2Cext 2Rext/Cext
2 3 4 5 6 7 8 9
1B 1A NC VCC 1R ext /C ext 1CLR 1Q NC 2Q 2Cext
4 5 6 7 8 3 2 1 20 19 18 17 16 15 14 9 10 11 12 13
VCC
1A
SN54LV123A . . . J OR W PACKAGE SN74LV123A . . . D, DB, DGV, NS, OR PW PACKAGE (TOP VIEW)
SN74LV123A . . . RGY PACKAGE (TOP VIEW)
1Cext 1Q NC 2Q 2CLR
NC No internal connection
des……
