參數(shù)資料
型號: MPC8379E-RDB
廠商: Freescale Semiconductor
文件頁數(shù): 79/117頁
文件大?。?/td> 0K
描述: BOARD REFERENCE FOR MPC837
標(biāo)準(zhǔn)包裝: 1
系列: PowerQUICC II™ PRO
類型: MPU
適用于相關(guān)產(chǎn)品: MPC8379
所含物品:
MPC8379E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
64
Freescale Semiconductor
16 Timers
This section describes the DC and AC electrical specifications for the timers of the chip.
16.1
Timers DC Electrical Characteristics
This table provides the DC electrical characteristics for the device timers pins, including TIN, TOUT,
TGATE, and RTC_CLK.
16.2
Timers AC Timing Specifications
This table provides the timers input and output AC timing specifications.
Deterministic jitter
fC3dB =fBAUD/10
USATA_TXDJfB/10
0.35
UIp-p
Deterministic jitter
fC3dB =fBAUD/500
USATA_TXDJfB/500
0.42
UIp-p
Deterministic jitter
fC3dB =fBAUD/1667
USATA_TXDJfB/1667
0.35
UIp-p
Note:
1. Measured at Tx output pins peak to peak phase variation, random data pattern.
Table 60. Timers DC Electrical Characteristics
Parameter
Condition
Symbol
Min
Max
Unit
Output high voltage
IOH = –6.0 mA
VOH
2.4
V
Output low voltage
IOL = 6.0 mA
VOL
—0.5
V
Output low voltage
IOL = 3.2 mA
VOL
—0.4
V
Input high voltage
VIH
2.0
OVDD + 0.3
V
Input low voltage
VIL
–0.3
0.8
V
Input current
0 V
≤ VIN ≤ OVDD
IIN
± 30
μA
Table 61. Timers Input AC Timing Specifications1
Parameter
Symbol 2
Min
Unit
Timers inputs—minimum pulse width
tTIWID
20
ns
Notes:
1. Input specifications are measured from the 50% level of the signal to the 50% level of the rising edge of CLKIN. Timings are
measured at the pin.
2. Timers inputs and outputs are asynchronous to any visible clock. Timers outputs should be synchronized before use by any
external synchronous logic. Timers inputs are required to be valid for at least tTIWID ns to ensure proper operation
Table 59. Gen 2i/3G Receiver AC Specifications (continued)
Parameter
Symbol
Min
Typical
Max
Units
Note
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