器件名称:
M74HC20
功能描述:
DUAL 4-INPUT NAND GATE
文件大小:
172.7KB 共8页
简 介:
M74HC20 DUAL 4-INPUT NAND GATE s s s s s s s HIGH SPEED: tPD = 9ns (TYP.) at VCC = 6V LOW POWER DISSIPATION: ICC = 1A(MAX.) at TA=25°C HIGH NOISE IMMUNITY: VNIH = V NIL = 28 % VCC (MIN.) SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN) at VCC = 4.5V BALANCED PROPAGATION DELAYS: tPLH tPHL WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 20 DIP SOP TSSOP ORDER CODES PACKAGE DIP SOP TSSOP TUBE M74HC20B1R M74HC20M1R T&R M74HC20RM13TR M74HC20TTR DESCRIPTION The M74HC20 is an high speed CMOS DUAL 4-INPUT NAND GATE fabricated with silicon gate C2MOS technology. The internal circuit is composed of 3-stage including buffered output, which gives high noise immunity and stable output. All inputs are equipped with protection circuits against static discharge and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS July 2001 1/8 M74HC20 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1, 9 2, 10 3, 11 4, 12 5, 13 6, 8 7 14 SYMBOL 1A to 2A 1B to 2B N.C. 1C to 2C 1D to 2D 1Y to 2Y GND VCC NAME AND FUNCTION Data Inputs Data Inputs Not Connected Data Inputs Data Inputs Data Outputs Ground (0V) Positive Supply Voltage TRUTH TABLE A L X X X H B X L X X H C X X L X H D X X X L H Y H H H H L ABSOLUTE MAXIMUM RATINGS Symbol VCC VI VO IIK IOK IO Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Current Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 t……
