参数资料
型号: AT91M42800A-33CI
厂商: Atmel
文件页数: 16/27页
文件大小: 0K
描述: IC ARM7 MCU 144 BGA
标准包装: 160
系列: AT91
核心处理器: ARM7
芯体尺寸: 16/32-位
速度: 33MHz
连通性: EBI/EMI,SPI,UART/USART
外围设备: WDT
输入/输出数: 54
程序存储器类型: ROMless
RAM 容量: 8K x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 3.6 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 144-LFBGA
包装: 托盘
配用: AT91EB42-ND - KIT EVAL FOR ARM AT91M42800A
23
1779ES–ATARM–14-Apr-06
AT91M42800A
10. Soldering Profile
10.1
LQFP Soldering Profile (Green)
Table 10-1 gives the recommended soldering profile from J-STD-020C.
Note:
The package is certified to be backward compatible with Pb/Sn soldering profile.
A maximum of three reflow passes is allowed per component.
10.2
BGA Soldering Profile (RoHS-compliant)
Table 10-2 gives the recommended soldering profile from J-STD-20C.
Note:
It is recomended to apply a soldering temperature higher than 250°C.
A maximum of three reflow passes is allowed per component.
Table 10-1.
Soldering Profile Green Compliant Package
Profile Feature
Green Package
Average Ramp-up Rate (217°C to Peak)
3
° C/sec. max.
Preheat Temperature 175°C ±25°C
180 sec. max.
Temperature Maintained Above 217°C
60 sec. to 150 sec.
Time within 5
° C of Actual Peak Temperature
20 sec. to 40 sec.
Peak Temperature Range
260
° C
Ramp-down Rate
6
° C/sec. max.
Time 25
° C to Peak Temperature
8 min. max.
Table 10-2.
Soldering Profile RoHS Compliant Package
Profile Feature
Convection or IR/Convection
Average Ramp-up Rate (183
° C to Peak)
3
° C/sec. max.
Preheat Temperature 125
° C ±25° C
180 sec. max
Temperature Maintained Above 183
° C
60 sec. to 150 sec.
Time within 5
° C of Actual Peak Temperature
20 sec. to 40 sec.
Peak Temperature Range
260
° C
Ramp-down Rate
6
° C/sec.
Time 25
° C to Peak Temperature
8 min. max
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