參數(shù)資料
型號: 74HC193N,652
廠商: NXP Semiconductors
文件頁數(shù): 28/30頁
文件大小: 0K
描述: IC 4BIT BINARY UP/DN COUNT 16DIP
產(chǎn)品培訓模塊: Logic Packages
標準包裝: 1,000
系列: 74HC
邏輯類型: 二進制計數(shù)器
方向: 上,下
元件數(shù): 1
每個元件的位元數(shù): 4
復位: 異步
計時: 同步
計數(shù)速率: 49MHz
觸發(fā)器類型: 正邊沿
電源電壓: 2 V ~ 6 V
工作溫度: -40°C ~ 125°C
安裝類型: 通孔
封裝/外殼: 16-DIP(0.300",7.62mm)
供應商設備封裝: 16-DIP
包裝: 管件
74HC_HCT193
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2013. All rights reserved.
Product data sheet
Rev. 4 — 24 June 2013
7 of 30
NXP Semiconductors
74HC193; 74HCT193
Presettable synchronous 4-bit binary up/down counter
(1) Clear overrides load, data and count inputs.
(2) When counting up, the count down clock input (CPD) must be HIGH, when counting down the count up clock input
(CPU) must be HIGH.
Sequence
Clear (reset outputs to zero);
load (preset) to binary thirteen;
count up to fourteen, fifteen, terminal count up, zero, one and two;
count down to one, zero, terminal count down, fifteen, fourteen and thirteen.
Fig 8.
Typical clear, load and count sequence
001aag411
COUNT UP
COUNT DOWN
013
CLEAR
PRESET
1
0
15
14
13
14
15
0
1
2
MR(1)
PL
D0
D1
D2
D3
CPU(2)
CPD(2)
Q0
Q1
Q2
Q3
TCU
TCD
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