参数资料
型号: MCF5275LCVM133
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 32-BIT, 133 MHz, RISC PROCESSOR, PBGA196
封装: MAPBGA-196
文件页数: 44/44页
文件大小: 1242K
代理商: MCF5275LCVM133
Design Recommendations
MCF5275 Integrated Microprocessor Family Hardware Specification, Rev. 2
Preliminary—Subject to Change Without Notice
Freescale Semiconductor
9
5
Design Recommendations
5.1
Layout
Use a 4-layer printed circuit board with the VDD and GND pins connected directly to the power
and ground planes for the MCF5275.
See application note AN1259 System Design and Layout Techniques for Noise Reduction in
MCU-Based Systems.
Match the PC layout trace width and routing to match trace length to operating frequency and board
impedance. Add termination (series or therein) to the traces to dampen reflections. Increase the
PCB impedance (if possible) keeping the trace lengths balanced and short. Then do cross-talk
TEST
I
N9
N6
PLL_TEST
I
M14
Power Supplies
VDDPLL
I
M15
M13
VSSPLL
I
K16
L13
VSS
I
A1, A10, A16,
E5, E12, F6,
F11, G7:10,
H7:10, J1,
J7:10, K7:10,
L6, L11, M5,
N16, R7, T1,
T16
F7, F8, G6:9,
H6:9, J7, J8
OVDD
I
E6:8, F5, F7, F8,
G5, G6, H5, H6,
J11, J12, K11,
K12, L9, L10,
L12, M9:11
E5:7, F5, F6,
H10, J9, J10,
K8:10
VDD
I
D8, H13, K4, N8 D6, G5, G12, L7
SD_VDD
I
E9:11, F9, F10,
F12, G11, G12,
H11, H12, J5,
J6, K5, K6, L5,
L7, L8, M6, M7,
M8
E8:10, F9, F10,
G10, H5, J5, J6,
K5:7
1 Refers to pin’s primary function. All pins which are configurable for GPIO have a pullup enabled in GPIO
mode with the exception of PBUSCTL[7], PBUSCTL[4:0], PADDR, PBS, PSDRAM.
2 If JTAG_EN is asserted, these pins default to Alternate 1 (JTAG) functionality. The GPIO module is not
responsible for assigning these pins.
Table 2. MCF5274 and MCF5275 Signal Information and Muxing (continued)
Signal Name
GPIO
Alternate1
Alternate2 Dir.1
MCF5274
MCF5275
256 MAPBGA
MCF5274L
MCF5275L
196 MAPBGA
相关PDF资料
PDF描述
MCF5275CVM133 32-BIT, 133 MHz, RISC PROCESSOR, PBGA256
MCF5274VM133 32-BIT, 133 MHz, RISC PROCESSOR, PBGA256
MCF5280CVF80 FLASH, 80 MHz, RISC MICROCONTROLLER, PBGA256
MCF5281CVM80 FLASH, 80 MHz, RISC MICROCONTROLLER, PBGA256
MCF5282CVF80 FLASH, 80 MHz, RISC MICROCONTROLLER, PBGA256
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