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SN74LS390N中文资料

厂家型号

SN74LS390N

文件大小

193.56Kbytes

页面数量

7

功能描述

DUAL DECADE COUNTER; DUAL 4-STAGE BINARY COUNTER

数据手册

原厂下载下载地址一下载地址二到原厂下载

生产厂商

MOTOROLA

SN74LS390N数据手册规格书PDF详情

DUAL DECADE COUNTER;

DUAL 4-STAGE BINARY COUNTER

The SN54/74LS390 and SN54/74LS393 each contain a pair of high-speed 4-stage ripple counters. Each half of the LS390 is partitioned into a divide-by-two section and a divide-by five section, with a separate clock input for each section. The two sections can be connected to count in the 8.4.2.1 BCD code or they can count in a biquinary sequence to provide a square wave (50 duty cycle) at the final output.

Each half of the LS393 operates as a Modulo-16 binary divider, with the last three stages triggered in a ripple fashion. In both the LS390 and the LS393, the flip-flops are triggered by a HIGH-to-LOW transition of their CP inputs. Each half of each circuit type has a Master Reset input which responds to a HIGH signal by forcing all four outputs to the LOW state.

• Dual Versions of LS290 and LS293

• LS390 has Separate Clocks Allowing ÷2, ÷2.5, ÷5

• Individual Asynchronous Clear for Each Counter

• Typical Max Count Frequency of 50 MHz

• Input Clamp Diodes Minimize High Speed Termination Effects

更新时间:2025-10-19 15:01:00
供应商 型号 品牌 批号 封装 库存 备注 价格
MOTOROLA/摩托罗拉
2447
DIP-16
100500
一级代理专营品牌!原装正品,优势现货,长期排单到货
TI
DIP
20
原装现货,优势库存
TI(德州仪器)
24+
PDIP16
924
只做原装,提供一站式配单服务,代工代料。BOM配单
TI/德州仪器
23+/24+
DIP16
9865
主推型号,原装正品,终端BOM表可配单,可开13点税
TI
2016+
DIP
2654
只做原装,假一罚十,公司可开17%增值税发票!
TI
81+
DIP16
3560
全新原装进口自己库存优势
TI
25+
DIP-16P
4897
绝对原装!现货热卖!
TI
23+
DIP
7000
绝对全新原装!100%保质量特价!请放心订购!
HITACHI
24+
DIP16
6
本站现库存
TI
16+
DIP
10
全新原装现货

SN74LS390NSR 价格

参考价格:¥4.3732

型号:SN74LS390NSR 品牌:Texas 备注:这里有SN74LS390N多少钱,2025年最近7天走势,今日出价,今日竞价,SN74LS390N批发/采购报价,SN74LS390N行情走势销售排排榜,SN74LS390N报价。

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