参数资料
型号: ST40RA200XH6E
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 200 MHz, RISC PROCESSOR, PBGA372
封装: 27 X 27 MM, 2.33 MM HEIGHT, PLASTIC, BGA-372
文件页数: 65/94页
文件大小: 2144K
代理商: ST40RA200XH6E
68/92
ST40RA
7 Electrical specifications
7.8
PIO AC specifications
Reference clock in this case means the last transition of any PIO output signal within a bus, and
hence is a virtual clock.
Table 32: PIO timings
Symbol
Parameter
PIO13:0
PIO23:14
Units
Note
Min
Max
Min
Max
tPCHPOV
PIO reference clock high to PIO output valid
-5.5
1
-5.5
1
ns
a
a. No skew guarantee is made between the two separate PIO buses: PIO13:0 and PIO23:14
tPCHWDZ
PIO tri-state after PIO reference clock high
-5
5
-5
5
ns
1
tPIOr
Output rise time
1
5
1
5
ns
tPIOf
Output fall time
1
5
1
5
ns
tPIOr
Input rise time
20
5
ns
b
b. Loose input rise and fall times on PIO13:0 bus as these are schmitt trigger inputs.
tPIOf
Input fall time
20
5
ns
2
Figure 16: PIO AC timings
PIO reference clock
PIOOUT
tPCHPOV
PIOOUT
tPCHWDZ
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