參數(shù)資料
型號: MCP2551
廠商: Microchip Technology Inc.
元件分類: CAN
英文描述: High-Speed CAN Transceiver
中文描述: 高速CAN收發(fā)器
文件頁數(shù): 11/20頁
文件大?。?/td> 364K
代理商: MCP2551
2002 Microchip Technology Inc.
Preliminary
DS21667C-page 11
MCP2551
2.3
AC Characteristics
AC Specifications
Electrical Characteristics:
Industrial (I): T
AMB
= -40°C to +85°CV
DD
= 4.5V to 5.5V
Extended (E): T
AMB
= -40°C to +125°CV
DD
= 4.5V to 5.5V
Param
No.
Sym
Characteristic
Min
Max
Units
Conditions
1
2
3
t
BIT
f
BIT
Bit time
Bit frequency
Delay TXD to bus active
1
16
62.5
1000
70
μs
kHz
ns
V
RS
= 0V
V
RS
= 0V
-40°C
T
AMB
+125°C,
V
RS
= 0V
-40°C
T
AMB
+85°C,
V
RS
= 0V
-40°C
T
AMB
+125°C,
V
RS
= 0V
-40°C
T
AMB
+125°C,
V
RS
= 0V
-40°C
T
AMB
+125°C,
R
S
= 47 k
-40°C
T
AMB
+85°C,
V
RS
= 0V
-40°C
T
AMB
+85°C,
R
S
= 47 k
-40°C
T
AMB
+125°C,
V
RS
= 0V
-40°C
T
AMB
+125°C,
R
S
= 47 k
Refer to Figure 1-1;
R
S
= 47 k
, (
Note 1)
see Figure 2-6
TtxL2bus(d)
4
TtxH2bus(r)
Delay TXD to bus inactive
125
ns
170
ns
5
TtxL2rx(d)
Delay TXD to receive active
130
ns
250
ns
6
TtxH2rx(r)
Delay TXD to receiver
inactive
175
ns
225
ns
235
ns
400
ns
7
SR
CANH, CANL slew rate
5.5
8.5
V/μs
10
t
WAKE
Wake-up time from standby
(Rs pin)
Bus dominant to RXD Low
(standby mode)
CANH; CANL input
capacitance
Differential input
capacitance
TX Permanent Dominant
Timer Disable Time
5
μs
11
TbusD2rx(s)
550
ns
V
RS
= +4V; (see
Figure 2-7
)
12
C
IN
(
CANH
)
C
IN
(
CANL
)
C
DIFF
20
(typical)
10
(typical)
4
pF
1 Mbit/s data rate;
V
TXD
= V
DD
,
(Note 1)
1 Mbit/s data rate
(Note 1)
13
pF
14
TtxL2busZ
1.25
ms
15
TtxR2pdt(res) TX Permanent Dominant
Timer Reset Time
1
μs
Rising edge on TXD while
device is in permanent
dominant state
Note 1:
This parameter is periodically sampled and not 100% tested.
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