参数资料
型号: PI74ALVTC16374AEX
厂商: Pericom
文件页数: 1/9页
文件大小: 0K
描述: IC 16BIT EDGE-TRIG D FF 48TSSOP
产品变化通告: Product Discontinuation 09/Dec/2010
标准包装: 1,500
系列: 74ALVTC
功能: 标准
类型: D 型总线
输出类型: 三态非反相
元件数: 2
每个元件的位元数: 8
频率 - 时钟: 250MHz
触发器类型: 正边沿
输出电流高,低: 32mA,64mA
电源电压: 1.8 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 48-TFSOP(0.240",6.10mm 宽)
包装: 带卷 (TR)
1
PS8356C
11/06/08
Product Description
The PI74ALVTC16374 is particularly suitable for implementing
buffer registers, I/O ports, bidirectional bus drivers, and working
registers. This device can be used as two 8-bit flip-flops or one 16-
bit flip-flop. On the positive transition of the clock (CLK) input, the
Q outputs of the flip-flop take on the logic levels set up at the data
(D) inputs.
A buffered Output Enable (OE) input can be used to place the eight
outputs in either a normal logic state (high or low logic levels) or
a high-impedance state in which the outputs neither load nor drive
the bus lines significantly. The high-impedance state and the
increased drive provide the capability to drive bus lines without
need for interface or pullup components. OE does not affect
internal operations of the flip-flop. Old data can be retained or new
data can be entered while the outputs are in the high-impedance
state.
To ensure the high-impedance state during power up or power
down, OE should be tied to VDD through a pullup resistor; whose
minimum value is determined by the current-sinking capability of
the driver.
The family offers both I/O Tolerant, which allows it to operate in
mixed 1.8/3.6V systems, and “Bus Hold,” which retains the data
input’s last state whenever the data input goes to high-imped-
ance, preventing “floating” inputs and eliminating the need for
pullup/down resistors.
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PI74ALVTC16374
16-Bit D-Type Flip-Flop
with 3-State Outputs
Logic Block Diagram
Product Features
The PI74ALVTC Family is designed for low voltage
operation, VDD = 1.8V to 3.6V
Supports Live Insertion
3.6V I/O Tolerant Inputs and Outputs
Bus Hold
HighDrive,–32/64mA@3.3V
Uses patented Noise Reduction Circuitry
Power-Off high impedance inputs and outputs
Industrial operation at –40°C to +85°C
Packaging (Pb-free & Green available):
– 48-pin 240 mil wide plastic TSSOP (A)
1CLK
1Q1
1D
>C1
1D1
To Seven Other Channels
1OE
1
48
47
2
2CLK
2Q1
2D1
To Seven Other Channels
25
36
13
24
2OE
1D
>C1
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