参数资料
型号: MK20N512VLQ100R
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, FLASH, 100 MHz, RISC MICROCONTROLLER, PQFP144
封装: 20 X 20 MM, LQFP-144
文件页数: 30/74页
文件大小: 1849K
代理商: MK20N512VLQ100R
6.4.2 EzPort Switching Specifications
Table 22. EzPort switching specifications
Num
Description
Min.
Max.
Unit
Operating voltage
2.7
3.6
V
EP1
EZP_CK frequency of operation (all commands except
READ)
fSYS/2
MHz
EP1a
EZP_CK frequency of operation (READ command)
fSYS/8
MHz
EP2
EZP_CS negation to next EZP_CS assertion
2 x tEZP_CK
ns
EP3
EZP_CS input valid to EZP_CK high (setup)
5
ns
EP4
EZP_CK high to EZP_CS input invalid (hold)
5
ns
EP5
EZP_D input valid to EZP_CK high (setup)
2
ns
EP6
EZP_CK high to EZP_D input invalid (hold)
5
ns
EP7
EZP_CK low to EZP_Q output valid (setup)
12
ns
EP8
EZP_CK low to EZP_Q output invalid (hold)
0
ns
EP9
EZP_CS negation to EZP_Q tri-state
12
ns
EP2
EP3
EP4
EP5
EP6
EP7
EP8
EP9
EZP_CK
EZP_CS
EZP_Q (output)
EZP_D (input)
Figure 10. EzPort Timing Diagram
6.4.3 Flexbus Switching Specifications
All processor bus timings are synchronous; input setup/hold and output delay are given in
respect to the rising edge of a reference clock, FB_CLK. The FB_CLK frequency may be
the same as the internal system bus frequency or an integer divider of that frequency.
Peripheral operating requirements and behaviors
K20 Sub-Family Data Sheet Data Sheet, Rev. 4, 3/2011.
36
Preliminary
Freescale Semiconductor, Inc.
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