參數(shù)資料
型號(hào): MAX3140EEI
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi): 微控制器/微處理器
英文描述: CABLE ASSEMBLY; LEAD-FREE SOLDER; SMA MALE TO SMC PLUG; 50 OHM, RG400/U COAX, DOUBLE SHIELDED
中文描述: 1 CHANNEL(S), 240K bps, SERIAL COMM CONTROLLER, PDSO28
封裝: 0.150 INCH, 0.025 INCH PITCH, QSOP-28
文件頁(yè)數(shù): 4/36頁(yè)
文件大?。?/td> 468K
代理商: MAX3140EEI
M
SPI/MICROWIRE-Compatible UART with Integrated
True Fail-Safe RS-485/RS-422 Transceivers
4
_______________________________________________________________________________________
UART SWITCHING CHARACTERISTICS
(V
CC
= +5V ±5%, f
XTL
= 1.8432MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are measured with V
CC
= +5V,
UART configured for 9600 baud, T
A
= +25°C.) (Note 1)
CONDITIONS
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
C
LOAD
= 100pF
ns
100
t
DV
CS
Low to DOUT Valid
C
LOAD
= 100pF, R
CS
= 10k
ns
100
t
TR
CS
High to DOUT Tri-State
ns
0
t
CSH
CS
to SCLK Hold Time
ns
100
t
CSS
CS
to SCLK Setup Time
ns
100
t
DS
DIN to SCLK Setup Time
ns
238
t
CP
SCLK Period
ns
0
t
DH
DIN to SCLK Hold Time
C
LOAD
= 100pF
ns
100
t
DO
SCLK Fall to DOUT Valid
ns
100
t
CL
SCLK Low Time
ns
200
t
CS1
CS
Rising Edge to SCLK
Rising
ns
100
t
CS0
SCLK Rising Edge to
CS
FaIling
TX,
RTS
, DOUT; C
LOAD
= 100pF
ns
10
tr
Output Rise Time
TX,
RTS
, DOUT,
IRQ
; C
LOAD
= 100pF
ns
10
tf
Output Fall Time
ns
200
t
CSW
CS
High Pulse Width
ns
100
t
CH
SCLK High Time
UART AC TIMING
(Figure 1)
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