參數(shù)資料
型號: SC68C562
廠商: NXP Semiconductors N.V.
英文描述: CMOS dual universal serial communications controller (CDUSCC)(CMOS 雙通用串行通信控制器(CDUSCC))
中文描述: CMOS雙通用串行通信控制器(CDUSCC)(的CMOS雙通用串行通信控制器(CDUSCC))
文件頁數(shù): 11/26頁
文件大?。?/td> 163K
代理商: SC68C562
Philips Semiconductors
Product specification
SC68C562
CMOS Dual universal serial communications controller
(CDUSCC)
1998 Sep 04
11
INVALID
DATA VALID
INVALID
t
IALIAH
t
IALDDV
t
DDVDAL
t
IAHDDF
t
IAHDAH
t
IAHDDI
t
IAHDAZ
t
IALDAL
t
DALIAH
IRQN
IACKN
D0-D7
DTACHN
12
t
IALDDA
SD00256
Figure 4. Interrupt Cycle Timing
LIMITS
SYMBOL
PARAMETER
12
INDUSTRIAL SC68C562
Min
140
5
COMMERCIAL SC68C562
Min
130
10
UNIT
Max
Max
t
IALIAH
t
IALDDA
t
IALDDV
t
IAHDDF
t
DDVDAL
t
IAHDAH
t
IAHDAZ
IACKN low to IACKN high
IACKN low to data bus drivers active
9
IACKN low to read data valid
IACKN high to data bus floating
Read data valid to DTACKN low
9
IACKN high to DTACKN high
IACKN high to DTACKN high impedance
ns
ns
ns
ns
ns
ns
ns
140
60
130
60
20
20
80
110
70
100
t
IALDAL
IACKN low to DTACKN low
9
30
1
f
CL
140
1.5
f
CL
40
1
f
CL
130
1.5
f
CL
ns
t
IAHDDI
t
DALIAH
IACKN high to data bus invalid
DTACKN low to IACKN high
9
5
0
5
0
ns
ns
IACKN
IDCN
t
IALDCL
SD00257
Figure 5. Interrupt Daisy Chain Timing
LIMITS
SYMBOL
PARAMETER
INDUSTRIAL SC68C562
COMMERCIAL SC68C562
UNIT
Min
Max
Min
Max
t
IALDCL
IACKN low to IDCN (daisy chain) low
70
60
ns
t
CSLGII
t
GIVCSL
RWN
CSN
GPI1_N
GPI2_N
SD00258
Figure 6. Input Port Timing
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