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| 型号： | SN74ALS29821DWR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | ALS SERIES, 10-BIT DRIVER, TRUE OUTPUT, PDSO24 |
| 封装： | GREEN, PLASTIC, SOIC-24 |
| 文件页数： | 1/10页 |
| 文件大小： | 239K |
| 代理商： | SN74ALS29821DWR |
SN54ALS29821 . . . JT PACKAGE
SN74ALS29821 . . . DW OR NT PACKAGE
(TOP VIEW)
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4
5
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10
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24
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21
20
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18
17
16
15
14
13
OE
1D
2D
3D
4D
5D
6D
7D
8D
9D
10D
GND
VCC
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
9Q
10Q
CLK
SN54ALS29821, SN74ALS29821
10BIT BUSINTERFACE FLIPFLOPS
WITH 3STATE OUTPUTS
SDAS145B JANUARY 1986 REVISED JANUARY 1995
Copyright
1995, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
Functionally Equivalent to AMD’s AM29821
Provide Extra Data Width Necessary for
Wider Address/Data Paths or Buses With
Parity
Outputs Have Undershoot-Protection
Circuitry
Power-Up High-Impedance State
Buffered Control Inputs Reduce
dc Loading Effects
Package Options Include Plastic
Small-Outline (DW) Packages and Standard
Plastic (NT) and Ceramic (JT) 300-mil DIPs
description
These 10-bit edge-triggered D-type flip-flops
feature 3-state outputs designed specifically for
driving highly capacitive or relatively low-impedance loads. These devices are particularly suitable for
implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.
On the positive transition of the clock (CLK) input, the Q outputs are true to the data (D) input.
A buffered output-enable (OE) input can place the ten outputs in either a normal logic state (high or low logic
levels) or a high-impedance state. The outputs also are in the high-impedance state during power-up and
power-down conditions. The outputs remain in the high-impedance state while the device is powered down. 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.
OE does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered
while the outputs are in the high-impedance state.
The SN54ALS29821 is characterized for operation over the full military temperature range of 55
°C to 125°C.
The SN74ALS29821 is characterized for operation from 0
°C to 70°C.
FUNCTION TABLE
(each flip-flop)
INPUTS
OUTPUT
OE
CLK
D
OUTPUT
Q
L
↑
H
L
↑
LL
L
LX
Q0
H
X
Z
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
相关PDF资料 |
PDF描述 |
|---|---|
| SN74ALS29821FN | ALS SERIES, 10-BIT DRIVER, TRUE OUTPUT, PQCC28 |
| SN74ALS29823FN | ALS SERIES, 9-BIT DRIVER, TRUE OUTPUT, PQCC28 |
| SN74ALS29826FN3 | ALS SERIES, 8-BIT DRIVER, INVERTED OUTPUT, PQCC28 |
| SN74ALS29825FN3 | ALS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PQCC28 |
| SN74ALS29827DWR | ALS SERIES, 10-BIT DRIVER, TRUE OUTPUT, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74ALS29821DWRE4 | 功能描述:触发器 10-bit Bus Interface F-F W/3-State Otpt RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
| SN74ALS29821DWRG4 | 功能描述:触发器 10B Bus Interface 触发器 RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
| SN74ALS29821NT | 功能描述:触发器 10-bit Bus Interface F-F W/3-State Otpt RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
| SN74ALS29821NTE4 | 功能描述:触发器 10-bit Bus Interface F-F W/3-State Otpt RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
| SN74ALS29822NT | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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