2
參數(shù)資料
型號(hào)： MPC8568E-MDS-PB
廠商： Freescale Semiconductor
文件頁數(shù)： 94/139頁
文件大?。?/td> 0K
描述： MOD DEV SYSTEM POWERQUICC III
標(biāo)準(zhǔn)包裝： 1
系列： PowerQUICC III™
類型： MPU
適用于相關(guān)產(chǎn)品： MPC8568E
所含物品： 板
MPC8568E/MPC8567E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 1
58
Freescale Semiconductor
I
2C
Figure 30 provides the AC test load for the I2C.
Figure 34. I2C AC Test Load
Figure 35 shows the AC timing diagram for the I2C bus.
Figure 35. I2C Bus AC Timing Diagram
Capacitive load for each bus line
Cb
—400
pF
Note:
1.The symbols used for timing specifications herein follow the pattern 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, tI2DVKH symbolizes I
2C timing (I2)
with respect to the time data input signals (D) reach the valid state (V) relative to the tI2C clock reference (K) going to the high
(H) state or setup time. Also, tI2SXKL symbolizes I
2C timing (I2) for the time that the data with respect to the START condition
(S) went invalid (X) relative to the tI2C clock reference (K) going to the low (L) state or hold time. Also, tI2PVKH symbolizes I
2C
timing (I2) for the time that the data with respect to the STOP condition (P) reaching the valid state (V) relative to the tI2C
clock reference (K) going to the high (H) state or setup time.
2. As a transmitter, the MPC8568 provides a delay time of at least 300 ns for the SDA signal (referred to the VIHmin of the SCL
signal) to bridge the undefined region of the falling edge of SCL to avoid unintended generation of START or STOP condition.
When the MPC8568 acts as the I2C bus master while transmitting, the MPC8568 drives both SCL and SDA. As long as the
load on SCL and SDA are balanced, the MPC8568 would not cause unintended generation of START or STOP condition.
Therefore, the 300 ns SDA output delay time is not a concern. If, under some rare condition, the 300 ns SDA output delay
time is required for the MPC8568 as transmitter, application note AN2919 referred to in note 4 below is recommended.
3. The maximum tI2DXKL has only to be met if the device does not stretch the LOW period (tI2CL) of the SCL signal.
4.The requirements for I2C frequency calculation must be followed. Refer to Freescale application note AN2919, Determining
the I2C Frequency Divider Ratio for SCL
Table 47. I2C AC Electrical Specifications (continued)
At recommended operating conditions with OVDD of 3.3V ± 5%. All values refer to VIH (min) and VIL (max) levels (see Table 46).
Parameter
Symbol 1
Min
Max
Unit
Output
Z0 = 50 Ω
OVDD/2
RL = 50 Ω
Sr
S
SDA
SCL
tI2SXKL
tI2CL
tI2CH
tI2DXKL
tI2DVKH
tI2SXKL
tI2SVKH
tI2KHKL
tI2PVKH
PS
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MPC8568EPXAQGG 功能描述:微處理器 - MPU 8568 PB Encrypt 1GHz RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8568EPXAUJJ 功能描述:微處理器 - MPU 8568 PB Encrypt 1.3GHz RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8568EVTAQGG 功能描述:微處理器 - MPU No PB 1.0 GHz RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8568EVTAUJJ 功能描述:微處理器 - MPU No PB 1.3 GHz RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8568VTAQGG 功能描述:微處理器 - MPU 8568 1GHz Non Encrypt RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324
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