參數(shù)資料
型號: MC8641DVU1250GC
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: MICROPROCESSOR, CBGA1023
封裝: 33 X 33 MM, ROHS COMPLIANT, CERAMIC, BGA-1023
文件頁數(shù): 84/140頁
文件大?。?/td> 1484K
代理商: MC8641DVU1250GC
MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 0
48
Freescale Semiconductor
Local Bus
Table 42. Local Bus Timing Parameters—PLL Bypassed
Parameter
Symbol 1
Min
Max
Unit
Notes
Local bus cycle time
tLBK
12
ns
2
Local bus duty cycle
tLBKH/tLBK
45
55
%
Internal launch/capture clock to LCLK delay
tLBKHKT
2.3
3.9
ns
8
Input setup to local bus clock (except
LGTA/LUPWAIT)
tLBIVKH1
5.7
ns
4, 5
LGTA/LUPWAIT input setup to local bus
clock
tLBIVKL2
5.6
ns
4, 5
Input hold from local bus clock (except
LGTA/LUPWAIT)
tLBIXKH1
-1.8
ns
4, 5
LGTA/LUPWAIT input hold from local bus
clock
tLBIXKL2
-1.3
ns
4, 5
LALE output transition to LAD/LDP output
transition (LATCH hold time)
tLBOTOT
1.5
ns
6
Local bus clock to output valid (except
LAD/LDP and LALE)
tLBKLOV1
—-0.3
ns
Local bus clock to data valid for LAD/LDP
tLBKLOV2
—-0.1
ns
4
Local bus clock to address valid for LAD
tLBKLOV3
—0
ns
4
Local bus clock to LALE assertion
tLBKLOV4
—0
ns
4
Output hold from local bus clock (except
LAD/LDP and LALE)
tLBKLOX1
-3.2
ns
4
Output hold from local bus clock for
LAD/LDP
tLBKLOX2
-3.2
ns
4
Local bus clock to output high Impedance
(except LAD/LDP and LALE)
tLBKLOZ1
—0.2
ns
7
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