参数资料
型号: MCF5271CVM150
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 150 MHz, RISC PROCESSOR, PBGA196
封装: ROHS COMPLIANT, MAPBGA-196
文件页数: 15/42页
文件大小: 554K
代理商: MCF5271CVM150
MCF5271 Integrated Microprocessor Hardware Specification, Rev. 4
Electrical Characteristics
Freescale Semiconductor
22
7.5
External Interface Timing Characteristics
Table 11 lists processor bus input timings.
NOTE
All processor bus timings are synchronous; that is, input setup/hold and
output delay with respect to the rising edge of a reference clock. The
reference clock is the CLKOUT output.
All other timing relationships can be derived from these values.
Table 11. Processor Bus Input Timing Specifications
Name
Characteristic1
1
Timing specifications are tested using full drive strength pad configurations in a 50ohm transmission line
environment..
Symbol
Min
Max
Unit
freq
System bus frequency
fsys/2
50
75
MHz
B0
CLKOUT period
tcyc
—1/75
ns
Control Inputs
B1a
Control input valid to CLKOUT high2
2
TEA and TA pins are being referred to as control inputs.
tCVCH
9—
ns
B1b
BKPT valid to CLKOUT high3
3
Refer to figure A-19.
tBKVCH
9—
ns
B2a
CLKOUT high to control inputs invalid2
tCHCII
0—
ns
B2b
CLKOUT high to asynchronous control input BKPT invalid3
tBKNCH
0—
ns
Data Inputs
B4
Data input (D[31:0]) valid to CLKOUT high
tDIVCH
4—
ns
B5
CLKOUT high to data input (D[31:0]) invalid
tCHDII
0—
ns
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