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參數(shù)資料
| 型號： | PCA9507D,112 |
| 廠商： | NXP Semiconductors |
| 文件頁數(shù)： | 9/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC I/O EXPANDER I2C 24B 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 接口： | I²C，SM 總線 |
| 輸入/輸出數(shù)： | 2 輸入，2 輸出 |
| 中斷輸出： | 無 |
| 頻率 - 時(shí)鐘： | 400kHz |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | 935285823112 PCA9507D PCA9507D-ND |
PCA9507_1
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 7 February 2008
17 of 20
NXP Semiconductors
PCA9507
2-wire serial bus extender for HDMI DDC I2C-bus and SMBus
13.4 Reow soldering
Key characteristics in reow soldering are:
Lead-free versus SnPb soldering; note that a lead-free reow process usually leads to
higher minimum peak temperatures (see Figure 19) than a SnPb process, thus
reducing the process window
Solder paste printing issues including smearing, release, and adjusting the process
window for a mix of large and small components on one board
Reow temperature prole; this prole includes preheat, reow (in which the board is
heated to the peak temperature) and cooling down. It is imperative that the peak
temperature is high enough for the solder to make reliable solder joints (a solder paste
characteristic). In addition, the peak temperature must be low enough that the
packages and/or boards are not damaged. The peak temperature of the package
depends on package thickness and volume and is classied in accordance with
Table 7 and 8
Moisture sensitivity precautions, as indicated on the packing, must be respected at all
times.
Studies have shown that small packages reach higher temperatures during reow
soldering, see Figure 19.
Table 7.
SnPb eutectic process (from J-STD-020C)
Package thickness (mm)
Package reow temperature (
°C)
Volume (mm3)
< 350
≥ 350
< 2.5
235
220
≥ 2.5
220
Table 8.
Lead-free process (from J-STD-020C)
Package thickness (mm)
Package reow temperature (
°C)
Volume (mm3)
< 350
350 to 2000
> 2000
< 1.6
260
1.6 to 2.5
260
250
245
> 2.5
250
245
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| PCA9507D118 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
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