参数资料
型号: MCP2200T-I/MQ
厂商: Microchip Technology
文件页数: 7/34页
文件大小: 0K
描述: IC USB 2.0 - UART 20QFN
标准包装: 3,300
特点: USB 至 UART
通道数: 8
FIFO's: 256 字节
规程: USB 2.0
电源电压: 3 V ~ 5.5 V
带自动流量控制功能:
安装类型: 表面贴装
封装/外壳: 20-VQFN 裸露焊盘
供应商设备封装: 20-VQFN
包装: 带卷 (TR)
2010-2011 Microchip Technology Inc.
DS22230D-page 15
MCP2003/4/3A/4A
2.4
AC Specifications
AC CHARACTERISTICS
VBB = 6.0V to 27.0V; TA = -40°C to +125°C
Parameter
Sym
Min.
Typ.
Max.
Units
Test Conditions
Bus Interface – Constant Slope Time Parameters
Slope Rising and Falling Edges
tslope
3.5
22.5
s
7.3V <= VBB <= 18V
Propagation Delay of
Transmitter
ttranspd
4.0
s
ttranspd = max (ttranspdr or ttranspdf)
Propagation Delay of Receiver
trecpd
6.0
s
trecpd = max (trecpdr or trecpdf)
Symmetry of Propagation
Delay of Receiver Rising Edge
w.r.t. Falling Edge
trecsym
-2.0
2.0
s
trecsym = max (trecpdf – trecpdr)
RRXD 2.4
Ω TO VCC, CRXD 20 PF
Symmetry of Propagation
Delay of Transmitter Rising
Edge w.r.t. Falling Edge
ttrans-
sym
-2.0
2.0
s
ttranssym = max (ttranspdf - ttranspdr)
Time to Sample of FAULT/TXE
for Bus Conflict Reporting
tfault
32.5
s
tfault = max (ttranspd + tslope + trecpd)
Duty Cycle 1 @20.0 kbit/sec
.396
Cbus; Rbus conditions:
1nF; 1 k
Ω | 6.8 nF; 660Ω | 10 nF; 500Ω
THrec(max) = 0.744 x VBB,
THdom(max) = 0.581 x VBB,
VBB =7.0V – 18V; tbit = 50 s
D1 = tbus_rec(min)/2 x tbit)
Duty Cycle 2 @20.0 kbit/sec
.581
Cbus; Rbus conditions:
1nF; 1 k
Ω | 6.8 nF; 660Ω | 10 nF; 500Ω
THrec(max) = 0.284 x VBB,
THdom(max) = 0.422 x VBB,
VBB =7.6V – 18V; tbit = 50 s
D2 = tbus_rec(max)/2 x tbit)
Duty Cycle 3 @10.4 kbit/sec
.417
Cbus; Rbus conditions:
1nF; 1 k
Ω | 6.8 nF; 660Ω | 10 nF; 500Ω
THrec(max) = 0.778 x VBB,
THdom(max) = 0.616 x VBB,
VBB =7.0V – 18V; tbit = 96 s
D3 = tbus_rec(min)/2 x tbit)
Duty Cycle 4 @10.4 kbit/sec
.590
Cbus; Rbus conditions:
1nF; 1 k
Ω | 6.8 nF; 660Ω | 10 nF; 500Ω
THrec(max) = 0.251 x VBB,
THdom(max) = 0.389 x VBB,
VBB =7.6V – 18V; tbit = 96 s
D4 = tbus_rec(max)/2 x tbit)
Wake-up Timing
Bus Activity Debounce time
tBDB
5
20
s
MCP2003/2004
30
70
125
s
MCP2003A/2004A
Bus Activity to Vren on
tBACTVE
35
150
s
MCP2003/2004
10
30
90
s
MCP2003A/2004A
WAKE to Vren on
tWAKE
150
s
Chip Select to Vren on
tCSOR
150
s
Vren floating
Chip Select to Vren off
tCSPD
80
s
Vren floating
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