参数资料
型号: MPC8378E-MDS-PB
厂商: Freescale Semiconductor
文件页数: 103/128页
文件大小: 0K
描述: BOARD PROCESSOR FOR MDS S
标准包装: 1
类型: MPU
适用于相关产品: MPC8378
所含物品:
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
76
Freescale Semiconductor
17.2
GPIO AC Timing Specifications
This table provides the GPIO input and output AC timing specifications.
This figure provides the AC test load for the GPIO.
Figure 50. GPIO AC Test Load
18 IPIC
This section describes the DC and AC electrical specifications for the external interrupt pins of the chip.
18.1
IPIC DC Electrical Characteristics
This table provides the DC electrical characteristics for the external interrupt pins of the chip.
Table 62. GPIO Input AC Timing Specifications
Parameter
Symbol
Min
Unit
GPIO inputs—minimum pulse width
tPIWID
20
ns
Notes:
1. Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of SYS_CLKIN. Timings
are measured at the pin.
2. GPIO inputs and outputs are asynchronous to any visible clock. GPIO outputs should be synchronized before use by any
external synchronous logic. GPIO inputs are required to be valid for at least tPIWID ns to ensure proper operation.
Table 63. IPIC DC Electrical Characteristics
Parameter
Condition
Symbol
Min
Max
Unit
Input high voltage
VIH
2.0
OVDD + 0.3
V
Input low voltage
VIL
–0.3
0.8
V
Input current
IIN
—±30
μA
Output low voltage
IOL = 6.0 mA
VOL
—0.5
V
Output low voltage
IOL = 3.2 mA
VOL
—0.4
V
Note:
1. This table applies for pins IRQ[0:7], IRQ_OUT, MCP_OUT.
2. IRQ_OUT and MCP_OUT are open drain pins, thus VOH is not relevant for those pins.
Output
Z0 = 50 Ω
OVDD/2
RL = 50 Ω
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