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| 型号： | SN74LVC544ADWR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24 |
| 封装： | PLASTIC, SO-24 |
| 文件页数： | 1/9页 |
| 文件大小： | 127K |
| 代理商： | SN74LVC544ADWR |
SN74LVC544A
OCTAL REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS346E – MARCH 1994 – REVISED JUNE 1998
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D EPIC (Enhanced-Performance Implanted
CMOS) Submicron Process
D Typical VOLP (Output Ground Bounce)
< 0.8 V at VCC = 3.3 V, TA = 25°C
D Typical VOHV (Output VOH Undershoot)
> 2 V at VCC = 3.3 V, TA = 25°C
D Power Off Disables Outputs, Permitting
Live Insertion
D Supports Mixed-Mode Signal Operation on
All Ports (5-V Input/Output Voltage With
3.3-V VCC)
D Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB), and Thin Shrink Small-Outline (PW)
Packages
description
This octal registered transceiver is designed for 1.65-V to 3.6-V VCC operation.
The SN74LVC544A contains two sets of D-type latches for temporary storage of data flowing in either direction.
Separate latch-enable (LEAB or LEBA) and output-enable (OEAB or OEBA) inputs are provided for each
register to permit independent control in either direction of data flow.
The A-to-B enable (CEAB) input must be low to enter data from A or to output data from B. If CEAB is low and
LEAB is low, the A-to-B latches are transparent; a subsequent low-to-high transition of LEAB places the A
latches in the storage mode. With CEAB and OEAB both low, the 3-state B outputs are active and reflect the
inverted data present at the output of the A latches. Data flow from B to A is similar to A to B, but requires using
the CEBA, LEBA, and OEBA.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
The SN74LVC544A is characterized for operation from –40
°C to 85°C.
FUNCTION TABLE
INPUTS
OUTPUT
CEAB
LEAB
OEAB
A
B
H
X
Z
L
XH
X
Z
L
HL
X
B0
L
LL
L
H
L
H
L
A-to-B data flow is shown; B-to-A flow control is the
same except that it uses CEBA, LEBA, and OEBA.
Output level before the indicated steady-state input
conditions were established
PRODUCT
PREVIEW
Copyright
1998, Texas Instruments Incorporated
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EPIC is a trademark of Texas Instruments Incorporated.
DB, DW, OR PW PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
LEBA
OEBA
A1
A2
A3
A4
A5
A6
A7
A8
CEAB
GND
VCC
CEBA
B1
B2
B3
B4
B5
B6
B7
B8
LEAB
OEAB
相关PDF资料 |
PDF描述 |
|---|---|
| SN74LVC544DWR | LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24 |
| SN74LVC573DBR | LVC/LCX/Z SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| SN74LVC573PWR | LVC/LCX/Z SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| SN74LVC646DBLE | LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24 |
| SN74LVC646PW | LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74LVC573ADBR | 功能描述:闭锁 Tri-St Octal D-Type RoHS:否 制造商:Micrel 电路数量:1 逻辑类型:CMOS 逻辑系列:TTL 极性:Non-Inverting 输出线路数量:9 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:12 V 电源电压-最小:5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-16 封装:Reel |
| SN74LVC573ADBRE4 | 功能描述:闭锁 Tri-St Octal D-Type RoHS:否 制造商:Micrel 电路数量:1 逻辑类型:CMOS 逻辑系列:TTL 极性:Non-Inverting 输出线路数量:9 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:12 V 电源电压-最小:5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-16 封装:Reel |
| SN74LVC573ADBRG4 | 功能描述:闭锁 Octal Transp DType Latch RoHS:否 制造商:Micrel 电路数量:1 逻辑类型:CMOS 逻辑系列:TTL 极性:Non-Inverting 输出线路数量:9 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:12 V 电源电压-最小:5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-16 封装:Reel |
| SN74LVC573ADGVR | 功能描述:闭锁 Tri-St Octal D-Type RoHS:否 制造商:Micrel 电路数量:1 逻辑类型:CMOS 逻辑系列:TTL 极性:Non-Inverting 输出线路数量:9 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:12 V 电源电压-最小:5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-16 封装:Reel |
| SN74LVC573ADGVRE4 | 功能描述:闭锁 Tri-St Octal D-Type RoHS:否 制造商:Micrel 电路数量:1 逻辑类型:CMOS 逻辑系列:TTL 极性:Non-Inverting 输出线路数量:9 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:12 V 电源电压-最小:5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-16 封装:Reel |
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