5秒后页面跳转
SN74ALS845-1FN3 PDF预览

SN74ALS845-1FN3

更新时间: 2024-11-29 14:35:59
品牌 Logo 应用领域
德州仪器 - TI 驱动输出元件逻辑集成电路
页数 文件大小 规格书
9页 218K
描述
ALS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PQCC28

SN74ALS845-1FN3 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:QCCJ, LDCC28,.5SQReach Compliance Code:not_compliant
风险等级:5.63其他特性:WITH TRIPLE OUTPUT ENABLE; WITH CLEAR AND PRESET; POWER OFF DISABLE OUTPUTS TO PERMIT LIVE INSERTION
系列:ALSJESD-30 代码:S-PQCC-J28
长度:11.5062 mm负载电容(CL):50 pF
逻辑集成电路类型:BUS DRIVER最大I(ol):0.048 A
位数:8功能数量:1
端口数量:2端子数量:28
最高工作温度:70 °C最低工作温度:
输出特性:3-STATE输出极性:TRUE
封装主体材料:PLASTIC/EPOXY封装代码:QCCJ
封装等效代码:LDCC28,.5SQ封装形状:SQUARE
封装形式:CHIP CARRIER峰值回流温度(摄氏度):NOT SPECIFIED
最大电源电流(ICC):67 mA传播延迟(tpd):26 ns
认证状态:Not Qualified座面最大高度:4.57 mm
子类别:FF/Latches最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:TTL
温度等级:COMMERCIAL端子形式:J BEND
端子节距:1.27 mm端子位置:QUAD
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:11.5062 mm
Base Number Matches:1

SN74ALS845-1FN3 数据手册

 浏览型号SN74ALS845-1FN3的Datasheet PDF文件第2页浏览型号SN74ALS845-1FN3的Datasheet PDF文件第3页浏览型号SN74ALS845-1FN3的Datasheet PDF文件第4页浏览型号SN74ALS845-1FN3的Datasheet PDF文件第5页浏览型号SN74ALS845-1FN3的Datasheet PDF文件第6页浏览型号SN74ALS845-1FN3的Datasheet PDF文件第7页 
ꢀꢁ ꢂꢃ ꢄꢅ ꢀꢆ ꢃꢇ  
ꢆ ꢈꢉꢊ ꢋꢌ ꢉꢍꢀ ꢈꢊꢁꢋ ꢎꢏ ꢐꢄꢑꢎ ꢌꢒꢈꢋ ꢓꢔ ꢎ ꢌꢅ ꢄꢋꢑ ꢕ  
ꢖ ꢊꢋ ꢕꢌ ꢗ ꢈꢀꢋꢄꢋ ꢎꢌ ꢘꢍ ꢋꢔ ꢍꢋ ꢀ  
SDAS233A − DECEMBER 1983 − REVISED JANUARY 1995  
DW OR NT PACKAGE  
(TOP VIEW)  
3-State Buffer-Type Outputs Drive Bus  
Lines Directly  
Bus-Structured Pinout  
OE1  
OE2  
1D  
2D  
3D  
4D  
5D  
6D  
7D  
V
CC  
1
2
3
4
5
6
7
8
9
24  
Provides Extra Bus-Driving Latches  
Necessary for Wider Address/Data Paths or  
Buses With Parity  
23 OE3  
22 1Q  
21 2Q  
20 3Q  
19 4Q  
18 5Q  
17 6Q  
16 7Q  
15 8Q  
14 PRE  
13 LE  
Buffered Control Inputs to Reduce  
dc Loading Effects  
Power-Up High-Impedance State  
Package Options Include Plastic  
Small-Outline (DW) Packages and Standard  
Plastic (NT) 300-mil DIPs  
8D 10  
CLR 11  
GND 12  
description  
This 8-bit latch features 3-state outputs designed  
specifically for driving highly capacitive or relatively low-impedance loads. This device is particularly suitable  
for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.  
The eight latches are transparent D-type latches. The device has noninverting data (D) inputs and provides true  
data at its outputs.  
Because the clear (CLR) and preset (PRE) inputs are independent of the clock (CLK) input, taking CLR low  
causes the eight Q outputs to go low. Taking PRE low causes the eight Q outputs to go high. When both PRE  
and CLR are taken low, the outputs follow the preset condition.  
The buffered output-enable (OE1, OE2, and OE3) inputs can be used to place the eight outputs in either a  
normal logic state (high or low levels) or a high-impedance state. In the high-impedance state, the outputs  
neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the  
capability to drive bus lines without interface or pullup components.  
The output enables do not affect the internal operation of the latches. Previously stored data can be retained  
or new data can be entered while the outputs are in the high-impedance state.  
The -1 version of the SN74ALS845 is identical to the standard version, except that the recommended maximum  
I
for the -1 version is increased to 48 mA.  
OL  
The SN74ALS845 is characterized for operation from 0°C to 70°C.  
FUNCTION TABLE  
INPUTS  
OUTPUT  
Q
PRE  
L
CLR  
X
OE1  
L
OE2  
L
OE3  
L
LE  
X
D
X
X
L
H
L
H
L
L
L
L
X
H
H
L
L
L
H
H
L
L
H
H
L
L
L
H
L
H
H
H
L
L
L
Q
0
X
X
X
X
H
X
X
X
X
X
Z
X
X
X
H
X
X
Z
Z
X
X
H
X
X
ꢋꢤ  
Copyright 1995, Texas Instruments Incorporated  
ꢠ ꢤ ꢡ ꢠꢙ ꢚꢮ ꢜꢛ ꢟ ꢧꢧ ꢥꢟ ꢝ ꢟ ꢞ ꢤ ꢠ ꢤ ꢝ ꢡ ꢩ  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443  

与SN74ALS845-1FN3相关器件

型号 品牌 获取价格 描述 数据表
SN74ALS845-1NT3 TI

获取价格

ALS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDIP24
SN74ALS845-1NTP3 TI

获取价格

IC IC,LATCH,SINGLE,8-BIT,ALS-TTL,DIP,24PIN,PLASTIC, FF/Latch
SN74ALS845DW TI

获取价格

8-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OUTPUTS
SN74ALS845DW3 TI

获取价格

IC IC,LATCH,SINGLE,8-BIT,ALS-TTL,SOP,24PIN,PLASTIC, FF/Latch
SN74ALS845FN TI

获取价格

ALS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PQCC28
SN74ALS845FN-00 TI

获取价格

ALS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PQCC28
SN74ALS845JT TI

获取价格

IC,LATCH,SINGLE,8-BIT,ALS-TTL,DIP,24PIN,CERAMIC
SN74ALS845JT4 TI

获取价格

IC IC,LATCH,SINGLE,8-BIT,ALS-TTL,DIP,24PIN,CERAMIC, FF/Latch
SN74ALS845NT TI

获取价格

8-BIT BUS-INTERFACE D-TYPE LATCH WITH 3-STATE OUTPUTS
SN74ALS845NT ROCHESTER

获取价格

ALS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDIP24, 0.300 INCH, PLASTIC, DIP-24