M48T35Y-70MH1E STMicroelectronics, M48T35Y-70MH1E Datasheet - Page 27

• Manufacturer Part Number: M48T35Y-70MH1E
• Description: IC TIMEKPR NVRAM 256KBIT5V 28SOI
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T35Y-70MH1E

• Memory Size: 256K (32K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 28-SOIC, 28-SOH (8.48mm Width)
• Function: Clock/Calendar/NV Timekeeping RAM/Watchdog Timer/Battery Backup
• Rtc Memory Size: 32768 Byte
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Parallel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2849-5; M48T35Y-70MH1

M48T35, M48T35Y
9
Revision history
Table 18.
20-May-2002
10-Dec-2003
05-Dec-2005
08-Sep-2010
07-Feb-2000
06-Mar-2002
31-Mar-2003
31-Mar-2004
01-Aug-2007
12-Feb-2009
04-Jun-2001
26-Jun-2002
31-Jul-2001
Nov-1999
Date
Document revision history
Revision
1.1
2.1
2.2
2.3
2.4
1
2
3
4
5
6
7
8
9
First issue
t
Reformatted; temp/voltage info. added to tables
add century bit text
Formatting changes based on latest document reviews
Add PMDIP packaging option, which is “Not for New Design” (NND)
(Table
Modify reflow time and temperature footnotes
Add footnote to table
v2.2 template applied; data retention condition updated
Reformatted; update DC characteristics
Reformatted; update Pb-free package information
Updated template, lead-free text, and remove footnote
Reformatted; added lead-free second level interconnect information to
cover page and
Updated
Section 8: Environmental
Reformatted document; updated
PMDIP28 package.
DR
description changed
16)
Doc ID 2611 Rev 9
Table
6; text in
Section 6: Package mechanical
(Table
Section 6: Package mechanical
(Table
information; minor formatting changes.
11)
9)
Changes
Section
(Table
4,
Table
(Table
9)
(Table
data.
12, 16; removed
(Table
6)
8, 9, 3, 4, 10, 11);
(Table
Revision history
(Table
data; added
6, 16)
9, 16)
11)
27/28