參數(shù)資料
型號: 68HC68W1
廠商: Intersil Corporation
英文描述: CMOS Serial Digital Pulse Width Modulator
中文描述: 的CMOS串行數(shù)字脈寬調(diào)制器
文件頁數(shù): 3/9頁
文件大?。?/td> 43K
代理商: 68HC68W1
3
SPI Interface Timing
PARAMETER
SYMBOL
MIN
MAX
UNITS
CDP68HC68W1,
V
DD
= 5V
±
10%, V
SS
= 0V, T
A
= -40
o
C to 85
o
C
Serial Clock Frequency
f
SCK
DC
2.1
MHz
Cycle Time
t
SCYC
480
-
ns
Enable Lead Time
t
ELD
240
-
ns
Enable Lag Time
t
ELG
-
200
ns
Serial Clock (SCK) High Time
t
SH
190
-
ns
Serial Clock (SCK) Low Time
t
SL
190
-
ns
Data Setup Time
t
DSU
100
-
ns
Data Hold Time
t
DHD
100
-
ns
Fall Time (70% V
DD
to 20% V
DD
, C
L
= 200pF)
t
SCKF
-
100
ns
Rise Time (20% V
DD
to 70% V
DD
, C
L
= 200pF)
t
SCKR
-
100
ns
t
CLKL
t
R
t
CLKH
FIGURE 1. PWM TIMING
t
CYC
PWM
t
PWMO
CLK
t
F
t
PWMO
FIGURE 2. SERIAL PERIPHERAL INTERFACE TIMING
t
SCYC
t
ELD
t
SL
t
SH
t
SCKR
t
ELG
t
SCKF
t
DHD
t
DSU
MSB
LSB
DATA
(INPUT)
SCK
(INPUT)
CS
(INPUT)
CDP68HC68W1
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