参数资料
型号: IDT74ALVCH16721PAG8
厂商: IDT, Integrated Device Technology Inc
文件页数: 1/6页
文件大小: 0K
描述: IC FLIP FLOP 20BIT 3ST 56-TSSOP
产品变化通告: Product Discontinuaton 29/Apr/2011
标准包装: 2,000
系列: 74ALVCH
功能: 设置(预设)和复位
类型: D 型
输出类型: 三态非反相
元件数: 1
每个元件的位元数: 20
频率 - 时钟: 150MHz
延迟时间 - 传输: 1ns
触发器类型: 正边沿
输出电流高,低: 24mA,24mA
电源电压: 2.7 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 56-TFSOP(0.240",6.10mm 宽)
包装: 带卷 (TR)
其它名称: 74ALVCH16721PAG8
INDUSTRIALTEMPERATURERANGE
IDT74ALVCH16721
3.3V CMOS 20-BIT FLIP-FLOP WITH 3-STATE OUTPUTS
1
JULY 2009
INDUSTRIAL TEMPERATURE RANGE
IDT and the IDT logo are registered trademarks of Integrated Device Technology, Inc.
2009 Integrated Device Technology, Inc.
DSC-4747/5
FEATURES:
0.5 MICRON CMOS Technology
Typical tSK(o) (Output Skew) < 250ps
ESD > 2000V per MIL-STD-883, Method 3015; > 200V using
machine model (C = 200pF, R = 0)
VCC = 3.3V ± 0.3V, Normal Range
VCC = 2.7V to 3.6V, Extended Range
VCC = 2.5V ± 0.2V
CMOS power levels (0.4
μμμμμ W typ. static)
Rail-to-Rail output swing for increased noise margin
Available in TSSOP package
FUNCTIONAL BLOCK DIAGRAM
APPLICATIONS:
3.3V high speed systems
3.3V and lower voltage computing systems
DRIVE FEATURES:
High Output Drivers: ±24mA
Low switching noise
IDT74ALVCH16721
3.3V CMOS 20-BIT
FLIP-FLOP WITH 3-STATE
OUTPUTS AND BUS-HOLD
DESCRIPTION:
This20-bitflip-flopisbuiltusingadvanceddualmetalCMOStechnology.The
20 flip-flops of the ALVCH16721 are edge-triggered D-type flip-flops with
qualified clock storage. On the positive transition of the clock (CLK) input, the
device provides true data at the Q outputs if the clock-enable (
CLKEN)input
is low. If
CLKEN is high, no data is stored.
Abufferedoutput-enable(
OE)inputplacesthe20outputsineitheranormal
logicstate(highorlow)orahigh-impedancestate.Inthehigh-impedancestate,
the outputs neither load nor drive the bus lines significantly. The high-
impedance state and increased drive provide the capability to drive bus lines
withoutneedforinterfaceorpullupcomponents.
OEdoesnotaffecttheinternal
operationoftheflip-flops.Olddatacanberetainedornewdatacanbeentered
while the outputs are in the high-impedance state.
The ALVCH16721 has been designed with a ±24mA output driver. This
driver is capable of driving a moderate to heavy load while maintaining speed
performance.
The ALVCH16721 has “bus-hold” which retains the inputs’ last state
whenever the input goes to a high impedance. This prevents floating inputs
and eliminates the need for pull-up/down resistor.
CLK
OE
CLKEN
D1
1
56
29
55
CE
C1
1D
2
Q1
TO 19 OTHER CHANNELS
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