PCF85263ATLSLASHA datasheet(87/102 Pages) NXP

87 / 102 page

NXP Semiconductors

PCF85263A

Tiny RTC/Calendar with Alarm Function, Battery Switch-Over, Time Stamp Input, and I2C-bus

• Reflow temperature profile; this profile includes preheat, reflow (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 classified in accordance with Table 69 and Table 70

Package reflow temperature (°C)

Volume (mm³)

Package thickness (mm)

< 350

≥ 350

< 2.5

235

220

≥ 2.5

220

Table 69. SnPb eutectic process (from J-STD-020D)

Package reflow temperature (°C)

Volume (mm³)

Package thickness (mm)

< 350

350 to 2000

> 2000

< 1.6

260

1.6 to 2.5

260

250

245

> 2.5

250

245

Table 70. Lead-free process (from J-STD-020D)

Moisture sensitivity precautions, as indicated on the packing, must be respected at all times.

Studies have shown that small packages reach higher temperatures during reflow soldering, see Figure 51.

001aac844

temperature

time

minimum peak temperature

= minimum soldering temperature

maximum peak temperature

= MSL limit, damage level

peak

temperature

MSL: Moisture Sensitivity Level

Figure 51. Temperature profiles for large and small components

For further information on temperature profiles, refer to Application Note AN10365 “Surface mount reflow

soldering description”.

PCF85263A

All information provided in this document is subject to legal disclaimers.

Product data sheet

Rev. 5.4 — 12 December 2025

Document feedback

87 / 102

PCF85263ATL/A Datasheet(PDF) 87 Page - NXP Semiconductors

PCF85263ATL/A Datasheet(HTML) 87 Page - NXP Semiconductors

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL