參數(shù)資料
型號(hào): MCF5274VM133
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 133 MHz, RISC PROCESSOR, PBGA256
封裝: MAPBGA-256
文件頁(yè)數(shù): 18/44頁(yè)
文件大?。?/td> 1242K
代理商: MCF5274VM133
Preliminary Electrical Characteristics
MCF5275 Integrated Microprocessor Family Hardware Specification, Rev. 2
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
25
8.7
Processor Bus Output Timing Specifications
Table 13 lists processor bus output timings.
Read/write bus timings listed in Table 13 are shown in Figure 8, Figure 9, and Figure 10.
Table 13. External Bus Output Timing Specifications
Name
Characteristic
Symbol
Min
Max
Unit
Control Outputs
B6a
CLKOUT high to chip selects (CS[7:0]) valid 1
1
CS transitions after the falling edge of CLKOUT.
tCHCV
—0.5tCYC + 5.5
ns
B6b
CLKOUT high to byte enables (BS[3:2]) valid2
2
BS transitions after the falling edge of CLKOUT.
tCHBV
—0.5tCYC + 5.5
ns
B6c
CLKOUT high to output enable (OE) valid3
3
OE transitions after the falling edge of CLKOUT.
tCHOV
—0.5tCYC + 5.5
ns
B7
CLKOUT high to control output (BS[3:2], OE) invalid
tCHCOI
0.5tCYC + 1.0
ns
B7a
CLKOUT high to chip selects invalid
tCHCI
0.5tCYC + 1.0
ns
Address and Attribute Outputs
B8
CLKOUT high to address (A[23:0]) and control (TS,
TSIZ[1:0], TIP, R/W) valid
tCHAV
—9
ns
B9
CLKOUT high to address (A[23:0]) and control (TS,
TSIZ[1:0], TIP, R/W) invalid
tCHAI
1.0
ns
Data Outputs
B11
CLKOUT high to data output (D[31:16]) valid
tCHDOV
—9
ns
B12
CLKOUT high to data output (D[31:16]) invalid
tCHDOI
1.0
ns
B13
CLKOUT high to data output (D[31:16]) high impedance
tCHDOZ
—9
ns
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