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| 型号： | IDT74LVC646APY |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 总线收发器 |
| 英文描述： | LVC/LCX/Z SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24 |
| 封装： | 0.65 MM PITCH, SSOP-24 |
| 文件页数： | 1/7页 |
| 文件大小： | 188K |
| 代理商： | IDT74LVC646APY |
1
EXTENDEDCOMMERCIALTEMPERATURERANGE
IDT74LVC646A
3.3V CMOS OCTAL BUS TRANSCEIVER AND REGISTER
APRIL 1999
1999
Integrated Device Technology, Inc.
DSC-4594/1
c
IDT74LVC646A
EXTENDED COMMERCIAL TEMPERATURE RANGE
DESCRIPTION
The LVC646A device consists of bus-transceiver circuits, D-type flip-
flops, and control circuitry arranged for multiplexed transmission of data
directly from the input bus or from the internal registers. Data on the A or
B bus is clocked into the registers on the low-to-high transition of the
appropriate clock (CLKAB or CLKBA) input.
Output-enable (
OE) and direction-control (DIR) inputs control the
transceiver functions. In the transceiver mode, data present at the high-
impedance port is stored in either register or in both. The select-control
(SAB and SBA) inputs can multiplex stored and real-time (transparent
mode) data. DIR determines which bus receives data when
OE is low. In
the isolation mode (
OE high), A data is stored in one register and B data
can be stored in the other register. When an output function is disabled, the
input function is still enabled and can be used to store and transmit data.
Only one of the two buses, A or B, can be driven at a time.
The LVC646A has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining
speed performance.
Inputs can be driven from either 3.3V or 5V devices. This feature allows
the use of this device as a translator in a mixed 3.3V/5V system environ-
ment.
FEATURES:
–
0.5 MICRON CMOS Technology
–
ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)
–
1.27mm pitch SOIC, 0.65mm pitch SSOP,
0.635mm pitch QSOP, 0.65mm pitch TSSOP packages
–
Extended commercial range of – 40°C to +85°C
–VCC = 3.3V ±0.3V, Normal Range
–VCC = 2.3V to 3.6V, Extended Range
–
CMOS power levels (0.4 W typ. static)
–
Rail-to-Rail output swing for increased noise margin
–
All inputs, outputs and I/O are 5 Volt tolerant
–
Supports hot insertion
3.3V CMOS OCTAL BUS
TRANSCEIVER AND REGISTER
WITH 3-STATE OUTPUTS
AND 5 VOLT TOLERANT I/O
Functional Block Diagram
TO SEVEN OTHER CH ANNELS
B 1
1
D
C 1
1
D
C 1
A 1
SA B
CL KAB
SB A
OE
CLKB A
21
23
22
1
2
4
20
DIR
3
One of eight channels
Drive Features for LVC646A:
–
High Output Drivers:
±24mA
–
Reduced system switching noise
APPLICATIONS:
5V and 3.3V mixed voltage systems
Data communication and telecommunication systems
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| IDT74LVCC3245APGG | 功能描述:IC BUS TRANSCVR 3-ST 8B 24TSSOP RoHS:是 类别:集成电路 (IC) >> 逻辑 - 变换器 系列:74LVCC 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:100 系列:- 逻辑功能:变换器，双向 位数:2 输入类型:CMOS 输出类型:CMOS 数据速率:16Mbps 通道数:2 输出/通道数目:1 差分 - 输入:输出:无/无 传输延迟（最大）:15ns 电源电压:1.65 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:10-UFQFN 供应商设备封装:10-UTQFN（1.4x1.8） 包装:管件 |
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