参数资料
型号: COM20019ILJP
厂商: STANDARD MICROSYSTEMS CORP
元件分类: 微控制器/微处理器
中文描述: 1 CHANNEL(S), 312.5K bps, LOCAL AREA NETWORK CONTROLLER, PQCC28
封装: PLASTIC, LCC-28
文件页数: 54/65页
文件大小: 386K
代理商: COM20019ILJP
Cost Competitive ARCNET (ANSI 878.1) Controller with 2K x 8 On-Chip RAM
Rev. 09-25-07
Page 58
SMSC COM20019I
DATASHEET
nPULSE1
t2
t3
RXIN
t10
t11
nPULSE2
t5
t6
(Internal Clk)
t4
t1
t7
nTXEN
t9
t8
LAST BIT
(3200 nS BIT TIME)
t13
t12
Parameter
min
typ
max
units
t2
t3
t4
t5
t6
t7
t8
t10
t11
t12
nPULSE1 Pulse Width
nPULSE1 Period
nPULSE2 Low to nPULSE1 Low
nPULSE2 High Time
nPULSE2 Low Time
nPULSE2 Period
nPULSE2 High to nTXEN High
RXIN Active Pulse Width
RXIN Period
nS
1600*
3200*
800*
1600*
3200*
50
-25
10
t1
nPULSE2 High to nTXEN Low
-25
50
nS
(First Rising Edge on nPULSE2 after Last Bit Time)
t9
nTXEN Low to first nPULSE1 Low**
5500
5700
nS
-25
RXIN Inactive Pulse Width
20
nS
t13
Beginning Last Bit Time to nTXEN High**
3900
nS
4100
Above values are for 312.5 Kbps.
Other Data Rates are shown below.
TDR is the Data Rate Period
*t5, t6 = TDR/4
*t2, t7, t10 = TDR/2
*t3, t11 = TDR
**t9 =
x TDR +/- 100 nS
7
4
**t13 =
x TDR +/- 100 nS
5
4
Figure 8.11 - BACKPLANE MODE TRANSMIT OR RECEIVE TIMING
(These signals are to and from the differential driver or the cable)
相关PDF资料
PDF描述
CP0603A2442CSTR
CP0805A0881ESTR
CP0805A1441BSTR
CP2101-GMR
CP2101
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