參數(shù)資料
型號(hào): MPC8572PXAVND
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 1500 MHz, MICROPROCESSOR, PBGA1023
封裝: 33 X 33 MM, PLASTIC, FCBGA-1023
文件頁數(shù): 90/138頁
文件大?。?/td> 1502K
代理商: MPC8572PXAVND
MPC8572E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
55
Local Bus Controller (eLBC)
Table 47 provides the DC electrical characteristics for the local bus interface operating at BVDD = 1.8 V
DC.
10.2
Local Bus AC Electrical Specifications
Table 48 describes the general timing parameters of the local bus interface at BVDD = 3.3 V DC.
Table 47. Local Bus DC Electrical Characteristics (1.8 V DC)
Parameter
Symbol
Min
Max
Unit
Supply voltage 1.8V
BVDD
1.71
1.89
V
High-level input voltage
VIH
0.65 x BVDD
BVDD + 0.3
V
Low-level input voltage
VIL
–0.3
0.35 x BVDD
V
Input current
(BVIN
1 = 0 V or BV
IN = BVDD)
IIN
TBD
μA
High-level output voltage
(IOH = –100 μA)
VOH
BVDD – 0.2
V
High-level output voltage
(IOH = –2 mA)
VOH
BVDD – 0.45
V
Low-level output voltage
(IOL = 100 μA)
VOL
—0.2
V
Low-level output voltage
(IOL = 2 mA)
VOL
—0.45
V
Note:
1. The symbol BVIN, in this case, represents the BVIN symbol referenced in Table 1.
Table 48. Local Bus General Timing Parameters (BVDD = 3.3 V DC)—PLL Enabled
At recommended operating conditions with BVDD of 3.3 V ± 5%.
Parameter
Configuration
Symbol 1
Min
Max
Unit
Notes
Local bus cycle time
tLBK
6.67
12
ns
2
Local bus duty cycle
tLBKH/tLBK
43
57
%
LCLK[n] skew to LCLK[m] or LSYNC_OUT
tLBKSKEW
150
ps
7,8
Input setup to local bus clock (except LGTA/LUPWAIT)
tLBIVKH1
1.8
ns
3, 4
LGTA/LUPWAIT input setup to local bus clock
tLBIVKH2
1.7
ns
3, 4
Input hold from local bus clock (except LGTA/LUPWAIT)
tLBIXKH1
1.0
ns
3, 4
LGTA/LUPWAIT input hold from local bus clock
tLBIXKH2
1.0
ns
3, 4
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)
tLBKHOV1
—2.3
ns
Local bus clock to data valid for LAD/LDP
tLBKHOV2
—2.4
ns
3
Local bus clock to address valid for LAD
tLBKHOV3
—2.3
ns
3
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