AC ELECTRICAL CHARACTERISTICS 1, 2, 3 (CONT’D) Symbol Parameter Min" />
參數(shù)資料
型號： XR82C684CJ-F
廠商： Exar Corporation
文件頁數(shù)： 14/107頁
文件大小： 0K
描述： IC UART CMOS QUAD 68PLCC
標(biāo)準(zhǔn)包裝： 19
特點： *
通道數(shù)： 4，QUART
FIFO's： 3 字節(jié)
電源電壓： 5V
安裝類型： 表面貼裝
封裝/外殼： 68-LCC（J 形引線）
供應(yīng)商設(shè)備封裝： 68-PLCC
包裝： 管件
其它名稱： 1016-1326-5
XR82C684
@
AC ELECTRICAL CHARACTERISTICS 1, 2, 3 (CONT’D)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Conditions
Receiver Timing XR82C684 (Figure 66)
8
8! ! ( 8
5" ;(,
@
%
8;
8! ! ; ( * 8
5" ;(,
%
Notes
1 Parameters are valid over the specified temperature and operating supply ranges. Typical values are 25
C, VCC = 5V and typical
processing parameters.
2 All voltages are referenced to ground (GND). For testing, input signal levels are 0.4V and 2.4V with a transition time of 20 ns maxi-
mum. All time measurements are referenced at input voltages of 0.8V and 2.0V as appropriate. See Figure 50.
3 AC test conditions for outputs: CL = 50 pF, RL = 2.7 kohm to VCC.
4 If -CS is used as the strobing input, this parameter defines the minimum high time between -CSs.
5 Consecutive write operations to the same register require at least three edges of the X1 clock between writes.
6 This specification imposes a 6 MHz maximum 68000 clock frequency if a read or write cycle follows immediately after the previous
read or write cycle. A higher 68000 clock can be used if this is not the case.
7 This specification imposes a lower bound on -CS and -IACK low, guaranteeing that they will be low for at least one CLK period.
8 This parameter is specified only to insure that -DTACK is asserted with respect to the rising edge of X1/CLK as shown in the timing
diagram, not to guarantee operation of the part. If the specified setup time is violated, -DTACK may be asserted as shown or may be
asserted one clock cycle later.
9 The minimum high time must be at least 1.5 times the X1/CLK period and the minimum low time must be at least equal to the X1/CLK
period if either channel’s Receiver is operating in external 1X clock mode.
ABSOLUTE MAXIMUM RATINGS1
! & > ,
B>
,
.9 9
> ,% 3( %' 2
9> NB>
Notes
1 Stresses above those listed under the Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rat-
ing only, and functional operation of the device at these or any other conditions above those indicated in the “Electrical Characteris-
tics” section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect
device reliability.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XR82C684CJTR/44-F 功能描述:UART 接口集成電路 Quad Channel UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR82C684CJTR-F 功能描述:UART 接口集成電路 Quad Channel UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
XR82C684J 制造商:EXAR 制造商全稱:EXAR 功能描述:CMOS QUAD CHANNEL UART (QUART)
XR82C684J/44 制造商:EXAR 制造商全稱:EXAR 功能描述:CMOS QUAD CHANNEL UART (QUART)
XR82C684J/44-F 功能描述:UART 接口集成電路 Quad Channel UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel
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