參數(shù)資料
型號(hào): MPC7457
廠商: 飛思卡爾半導(dǎo)體(中國(guó))有限公司
英文描述: RISC Microprocessor Hardware Specifications
中文描述: RISC微處理器硬件規(guī)格
文件頁(yè)數(shù): 17/68頁(yè)
文件大?。?/td> 1755K
代理商: MPC7457
MPC7457 RISC Microprocessor Hardware Specifications, Rev. 5
Freescale Semiconductor
17
Electrical and Thermal Characteristics
Table 9. Processor Bus AC Timing Specifications
1
At recommended operating conditions. See
Table 4
.
Parameter
Symbol
2
All Revisions and
Speed Grades
Unit
Notes
Min
Max
Input setup times:
A[0:35], AP[0:4]
D[0:63], DP[0:7]
AACK, ARTRY, BG, CKSTP_IN, DBG, DTI[0:3], GBL,
TT[0:3], QACK, TA, TBEN, TEA, TS, EXT_QUAL,
PMON_IN, SHD[0:1], BMODE[0:1],
BMODE[0:1], BVSEL, L3VSEL
t
AVKH
t
DVKH
t
IVKH
t
MVKH
1.8
1.8
1.8
1.8
ns
8
Input hold times:
A[0:35], AP[0:4]
D[0:63], DP[0:7]
AACK, ARTRY, BG, CKSTP_IN, DBG, DTI[0:3], GBL, TT[0:3],
QACK, TA, TBEN, TEA, TS, EXT_QUAL, PMON_IN,
HD[0:1]
BMODE[0:1], BVSEL, L3VSEL
t
AXKH
t
DXKH
t
IXKH
t
MXKH
0
0
0
0
ns
8
Output valid times:
A[0:35], AP[0:4]
D[0:63], DP[0:7]
AACK, ARTRY, BR, CI, CKSTP_IN, DRDY, DTI[0:3], GBL, HIT,
PMON_OUT, QREQ, TBST, TSIZ[0:2], TT[0:3], TS,
SHD[0:1], WT
t
KHAV
t
KHDV
t
KHOV
2.0
2.0
2.0
ns
Output hold times:
A[0:35], AP[0:4]
D[0:63], DP[0:7]
AACK, ARTRY, BR, CI, CKSTP_IN, DRDY, DTI[0:3], GBL, HIT,
PMON_OUT, QREQ, TBST, TSIZ[0:2], TT[0:3], TS,
SHD[0:1], WT
t
KHAX
t
KHDX
t
KHOX
0.5
0.5
0.5
ns
SYSCLK to output enable
t
KHOE
0.5
ns
SYSCLK to output high impedance (all except TS, ARTRY,
SHD0, SHD1)
t
KHOZ
3.5
ns
SYSCLK to TS high impedance after precharge
t
KHTSPZ
1
t
SYSCLK
3, 4, 5
Maximum delay to ARTRY/SHD0/SHD1 precharge
t
KHARP
1
t
SYSCLK
3, 5
6, 7
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