- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄353457 > HC646 (National Semiconductor Corporation) Non-Inverting Octal Bus Transceiver/Registers PDF資料下載
參數(shù)資料
| 型號(hào)： | HC646 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Non-Inverting Octal Bus Transceiver/Registers |
| 中文描述： | 非反相八路總線收發(fā)器/寄存器 |
| 文件頁(yè)數(shù)： | 7/12頁(yè) |
| 文件大小： | 91K |
| 代理商： | HC646 |
September 1993
4
Philips Semiconductors
Product specication
Octal bus transceiver/register; 3-state
74HC/HCT646
Fig.4 Functional diagram.
FUNCTION TABLE
Notes
1. H = HIGH voltage level
L = LOW voltage level
X = don’t care
↑ = LOW-to-HIGH level transition
2. The data output functions may be enabled or disabled by various signals at the OE and DIR inputs. Data input
functions are always enabled, i.e., data at the bus inputs will be stored on every LOW-to-HIGH transition on the clock
inputs.
INPUTS (1)
DATA I/O (2)
FUNCTION
OE
DIR
CPAB
CPBA
SAB
SBA
A0 to A7
B0 to B7
H
X
H or L
↑
H or L
↑
X
input
isolation
store A and B data
L
X
H or L
X
L
H
output
input
real-time B data to A bus
stored B data to A bus
L
H
X
H or L
X
L
H
X
input
output
real-time A data to B bus
stored A data to B bus
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HPC46400EVHG2 | High-Performance Communications MicroController |
| HPC46400EVHG20 | High-Performance Communications MicroController |
| HPC167064EL20 | High-Performance microController with a 16k UV Erasable CMOS EPROM |
| HCT273 | Octal D Flip-Flop with Common Clock and Reset with LSTTL-Compatible Inputs |
| H11A1 | 6-Pin DIP Optoisolators Transistor Output |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HC64R8 | 制造商:CONNOR-WINFIELD 制造商全稱:Connor-Winfield Corporation 功能描述:14 PIN DIP HCMOS/TTL COMPATIBLE |
| HC64R8R | 制造商:CONNOR-WINFIELD 制造商全稱:Connor-Winfield Corporation 功能描述:HCMOS/TTL COMPATIBLE TRI-STATE OUTPUT |
| HC64R8RG | 制造商:CONNOR-WINFIELD 制造商全稱:Connor-Winfield Corporation 功能描述:5.0V 14 Pin DIP HCMOS Clock Oscillator |
| HC64R8RG-49.408M | 制造商:CONNOR-WINFIELD 制造商全稱:Connor-Winfield Corporation 功能描述:5.0V 14 Pin DIP HCMOS Clock Oscillator |
| HC64RA | 制造商:CONNOR-WINFIELD 制造商全稱:Connor-Winfield Corporation 功能描述:14 PIN DIP 3.3V HCMOS TRI-STATE E/D |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。