參數(shù)資料
型號(hào)： 933714160652
廠商： NXP SEMICONDUCTORS
元件分類： 門電路
英文描述： HCT SERIES, QUAD 2-INPUT NOR GATE, PDSO14
封裝： SO-14
文件頁(yè)數(shù)： 2/5頁(yè)
文件大?。?/td> 31K
代理商： 933714160652
December 1990
2
Philips Semiconductors
Product specication
Quad 2-input NOR gate
74HC/HCT02
FEATURES
Output capability: standard
ICC category: SSI
GENERAL DESCRIPTION
The 74HC/HCT02 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL).
They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT02 provide the 2-input NOR function.
QUICK REFERENCE DATA
GND = 0 V; Tamb =25 °C; tr =tf = 6 ns
Notes
1. CPD is used to determine the dynamic power dissipation (PD in W):
PD =CPD × VCC2 × fi + ∑ (CL × VCC2 × fO) where:
fi = input frequency in MHz
fo = output frequency in MHz
CL = output load capacitance in pF
VCC = supply voltage in V
∑ (CL × VCC2 × fo) = sum of outputs
2. For HC the condition is VI = GND to VCC
For HCT the condition is VI = GND to VCC 1.5 V
ORDERING INFORMATION
See
“74HC/HCT/HCU/HCMOS Logic Package Information”.
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
HC
HCT
tPHL/ tPLH
propagation delay nA, nB to nY
CL = 15 pF; VCC =5V
7
9
ns
CI
input capacitance
3.5
pF
CPD
power dissipation capacitance per gate notes 1 and 2
22
24
pF
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