參數(shù)資料
型號: AS87C196CB20
英文描述: 16-Bit Microcontroller
中文描述: 16位微控制器
文件頁數(shù): 24/36頁
文件大?。?/td> 278K
代理商: AS87C196CB20
87C196CB - Automotive
20
Production Datasheet
Table 10. Normal Master/Slave Operation
Symbol
Parameter
Min (1)
Max
Units
T
CHCH
Clock Period
4t
ns
T
CLCH
Clock Low Time/Clock High Time
2t–10
ns
T
CLDV
Clock Falling to Data Out Valid (Master)
0.5t
1.5t + 20
ns
T
CLDV1
Clock Falling to Data Out Valid (Slave)
0.5t
1.5t + 50
ns
T
DVCH
Data In Setup to Clock Rising Edge
10
ns
T
CHDX
Clock Rising Edge to Data In Invalid
t + 15
ns
NOTE:
1. t = 1 state time (100 ns @ 20 MHz).
2. Timings are guaranteed by design.
Table 11. Handshake Operation
Symbol
Parameter
Min (1)
Max
Units
T
CHCH
Clock Period
4t
ns
T
CLCH
Clock Low Time/Clock High Time
2t–10
ns (2)
T
CLDV
Clock Falling to Data Out Valid (Master)
0.5t
1.5t + 20
ns
T
CLDV1
Clock Falling to Data Out Valid (Slave)
0.5t
1.5t + 20
ns
T
DVCH
Data In Setup to Clock Rising Edge
10
ns
T
CHDX
Clock Rising Edge to Data In Invalid
t + 15
ns
NOTE:
1. t = 1 state time (100 ns @ 20 MHz).
2. This specification refers to input clocks during slave operation. During master operation, the device outputs
a nominal 50% duty cycle clock.
Figure 13. Synchronous Serial Port
A4512-01
D5
D4
D3
D2
MSB
D6
D1
D0
1
8
7
6
5
4
3
2
1
8
7
6
5
4
3
2
SCx
(normal
transfers)
SDx(out)
SDx(in)
SCx
(handshaking
transfers)
Slave Receiver Pulls SCx ow
T
CLCL
T
CLCH
STE Bit
T
D1DV
T
CXDX
T
CXDV
T
DVCX
T
DXCX
valid
valid
valid
valid
valid
valid
valid
valid
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