参数资料
| 型号： | 74ABT657D,623 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 1/17页 |
| 文件大小： | 0K |
| 描述： | IC TRANSCVR TRI-ST 8BIT 24SOIC |
| 产品培训模块： | Logic Packages |
| 标准包装： | 1,000 |
| 系列： | 74ABT |
| 逻辑类型： | 收发器，非反相 |
| 元件数： | 1 |
| 每个元件的位元数： | 8 |
| 输出电流高，低： | 32mA，64mA |
| 电源电压： | 4.5 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SO |
| 包装： | 带卷 (TR) |
| 其它名称： | 74ABT657D-T 74ABT657D-T-ND 935045290623 |
1.
General description
The 74ABT657 high-performance BiCMOS device combines low static and dynamic
power dissipation with high speed and high output drive.
The 74ABT657 is an octal transceiver featuring non-inverting buffers with 3-state outputs
and an 8-bit parity generator/checker, and is intended for bus-oriented applications. The
buffers have a guaranteed current sinking capability of 64 mA. The Transmit/Receive input
(pin T/R) determines the direction of the data ow through the bidirectional transceivers.
Transmit (active HIGH) enables data from A ports to B ports; Receive (active LOW)
enables data from B ports to A ports.
When Output Enable input (pin OE) is HIGH, both A and B ports are high-impedance. The
parity select input (pin ODD/EVEN) allows the user to generate either an odd or even
parity output, depending on the system. Pin PARITY is an output from the
generator/checker when transmitting from port A to port B (pin T/R = HIGH) and an input
when receiving from port B to port A port (pin T/R = LOW).
In transmit mode (pin T/R = HIGH) port A is polled to determine the number of HIGH
inputs on port A. Pin PARITY output goes to the logic state determined by the setting of
pin ODD/EVEN and by the number of HIGH inputs on port A. For example, if pin
ODD/EVEN is set LOW (even parity) and the number of HIGH inputs on port A is odd, pin
PARITY output goes HIGH, transmitting even parity. If the number of HIGH inputs on port
A is even, pin PARITY output goes LOW, keeping even parity.
In receive mode (pin T/R = LOW) port B is polled to determine the number of HIGH inputs
on port B. If pin ODD/EVEN is LOW (even parity) and the number of HIGH inputs on port
B is:
Odd and pin PARITY input is HIGH, pin ERROR is HIGH, indicating no error
Even and pin PARITY input is HIGH, pin ERROR goes LOW, indicating an error
2.
Features and benets
I Combinational functions in one package
I Low static and dynamic power dissipation with high speed and high output drive
I Output capability: +64 mA and 32 mA
I Power-up 3-state
I Latch-up protection exceeds 500 mA per JESD78B class II level A
I ESD protection:
N HBM JESD22-A114F exceeds 2000 V
N MM JESD22-A115-A exceeds 200 V
74ABT657
Octal transceiver with parity generator/checker; 3-state
Rev. 03 — 15 March 2010
Product data sheet
相关PDF资料 |
PDF描述 |
|---|---|
| 74ABT657DB,118 | IC TRANSCVR TRI-ST 8BIT 24SSOP |
| 74ABT652AD,118 | IC TRANSCEIVER 8BIT N-INV 24SOIC |
| 74ABT652ADB,118 | IC TRANSCVR 8BIT N-INV 24SSOP |
| 74ABT657D,602 | IC TRANSCVR TRI-ST 8BIT 24SOIC |
| 74ABT652AD,112 | IC TRANSCEIVER 8BIT N-INV 24SOIC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 74ABT657DB | 功能描述:总线收发器 OCTAL XCVR W/PARITY CHK 3-S RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| 74ABT657DB,112 | 功能描述:总线收发器 OCTAL XCVR RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| 74ABT657DB,118 | 功能描述:总线收发器 OCTAL XCVR RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| 74ABT657DB-T | 功能描述:总线收发器 OCTAL XCVR W/PARITY CHK 3-S RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
| 74ABT657D-T | 功能描述:总线收发器 OCTAL XCVR W/PARITY CHK 3-S RoHS:否 制造商:Fairchild Semiconductor 逻辑类型:CMOS 逻辑系列:74VCX 每芯片的通道数量:16 输入电平:CMOS 输出电平:CMOS 输出类型:3-State 高电平输出电流:- 24 mA 低电平输出电流:24 mA 传播延迟时间:6.2 ns 电源电压-最大:2.7 V, 3.6 V 电源电压-最小:1.65 V, 2.3 V 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-48 封装:Reel |
发布紧急采购，3分钟左右您将得到回复。