参数资料
型号: PI74VCX16373AE
厂商: Pericom
文件页数: 1/8页
文件大小: 0K
描述: IC 16-BIT TRANSP LATCH 48-TSSOP
产品变化通告: Product Discontinuation 09/Dec/2010
标准包装: 39
系列: 74VCX
逻辑类型: D 型透明锁存器
电路: 8:8
输出类型: 三态
电源电压: 1.8 V ~ 3.6 V
独立电路: 2
延迟时间 - 传输: 1.5ns
输出电流高,低: 6mA,6mA
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)
供应商设备封装: 48-TSSOP
包装: 管件
1
PS8326C
10/27/06
Description
Pericom Semiconductor’s PI74VCX16373 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 latches or one 16-bit latch. When the Latch Enable (LE) input
is HIGH, the Q outputs follow the (D) inputs. When LE is taken
LOW, the Q outputs are latched at the levels set up at the 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 latch. 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; the
minimum value of the resistor is determined by the current-sinking
capability of the driver.
The PI74VCX family is I/O Tolerant, allowing it to operate in
mixed 1.8V/3.6V systems.
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PI74VCX16373
16-Bit Transparent D-Type Latch
with 3-State Outputs
Block Diagram
1LE
1Q1
1D
C1
1D1
To Seven Other Channels
1OE
1
48
47
2
2LE
2Q1
1D
C1
2D1
To Seven Other Channels
25
36
13
24
2OE
Features
The PI74VCX Family is designed for low voltage
operation, VDD = 1.8V to 3.6V
3.6V I/O Tolerant Inputs and Outputs
Supports Live Insertion
Balanced Drive, ±24mA
Uses patented Noise Reduction Circuitry
Typical VOLP (Output Ground Bounce)
< 0.6V at VDD = 2.5V, TA = 25C
Typical VOHV (Output VOH Undershoot)
< –0.6V at VDD = 2.5V, TA = 25C
Power-Off high impedance inputs and outputs
Industrial operation at –40°C to +85°C
Packaging(Pb-free&Greenavailable):
– 48-pin 240-mil wide plastic TSSOP (A)
06-0203
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