M48T559Y

14/18

Table 13. Ordering Information Scheme

Note: 1. The SOIC package (SOH28) requires the battery/crystal package (SNAPHAT) which is ordered separately under the part number

"M48T28-BR12SH1" in plastic tube or "M4T28-BR12SH1TR" in Tape & Reel form.

Caution: Do not place the SNAPHAT battery/crystal package "M4T28-BR12SH1" in conductive foam since will drain the lithium button-cell

battery.

For a list of available options (Speed, Package, etc...) or for further information on any aspect of this de-

vice, please contact the ST Sales Office nearest to you.

Example:

M48T559Y

MH

1

TR

Device Type

M48T

Supply Voltage and Write Protect Voltage

Package

Temperature Range

1 = 0 to 70 °C

Shipping Method for SOIC

blank = Tubes

TR = Tape & Reel

Table 14. Revision History

Date

Revision Details

June 1998

First Issue

02/07/00

Description Paragraph changed

Setting Alarm Clock paragraph changed

M4T28-BR12SH SNAPHAT Housing for 48mAh Battery & Crystal Package added (Table 16)

Power Down/Up Mode AC Waveforms changed (Figure 5)

Back-up Mode Alarm Waveforms changed (Figure 11)