參數(shù)資料
型號: MPC8308CZQADD
廠商: Freescale Semiconductor
文件頁數(shù): 54/83頁
文件大?。?/td> 0K
描述: MPU POWERQUICC II PRO 473MAPBGA
標準包裝: 84
系列: MPC83xx
處理器類型: 32-位 MPC83xx PowerQUICC II Pro
速度: 266MHz
電壓: 1V
安裝類型: 表面貼裝
封裝/外殼: 473-LFBGA
供應商設備封裝: 473-MAPBGA(19x19)
包裝: 托盤
MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 3
58
Freescale Semiconductor
SPI
19.2
SPI AC Timing Specifications
This table and provide the SPI input and output AC timing specifications.
This figure provides the AC test load for the SPI.
Figure 49. SPI AC Test Load
Figure 50 through Figure 51 represent the AC timing from Table 52. Note that although the specifications
generally reference the rising edge of the clock, these AC timing diagrams also apply when the falling edge
is the active edge.
Output high voltage
VOH
IOH = –8.0 mA
2.4
V
Output low voltage
VOL
IOL = 8.0 mA
0.5
V
Output low voltage
VOL
IOL = 3.2 mA
0.4
V
Table 52. SPI AC Timing Specifications 1
Characteristic
Symbol 2
Min
Max
Unit
SPI outputs valid—master mode (internal clock) delay
tNIKHOV
—6
ns
SPI outputs hold—master mode (internal clock) delay
tNIKHOX
0.5
ns
SPI outputs valid—slave mode (external clock) delay
tNEKHOV
8.5
ns
SPI outputs hold—slave mode (external clock) delay
tNEKHOX
2—
ns
SPI inputs—master mode (internal clock) input setup time
tNIIVKH
6—
ns
SPI inputs—master mode (internal clock) input hold time
tNIIXKH
0—
ns
SPI inputs—slave mode (external clock) input setup time
tNEIVKH
4—
ns
SPI inputs—slave mode (external clock) input hold time
tNEIXKH
2—
ns
Notes:
1. Output specifications are measured from the 50% level of the rising edge of SPICLK to the 50% level of the signal.
Timings are measured at the pin.
2. The symbols used for timing specifications follow the pattern of t(first two letters of functional block)(signal)(state)(reference)(state)
for inputs and t(first two letters of functional block)(reference)(state)(signal)(state) for outputs. For example, tNIKHOX symbolizes the
internal timing (NI) for the time SPICLK clock reference (K) goes to the high state (H) until outputs (O) are invalid (X).
Table 51. SPI DC Electrical Characteristics (continued)
Characteristic
Symbol
Condition
Min
Max
Unit
Output
Z0 = 50
NVDD/2
RL = 50
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