m48t37v STMicroelectronics, m48t37v Datasheet - Page 20

• Manufacturer Part Number: m48t37v
• Description: 5.0 Or 3.3v, 256 Kbit 32 Kbit X 8 Timekeeper Sram
• Manufacturer: STMicroelectronics

4
Caution:
Caution:
20/29
Maximum rating
Stressing the device above the rating listed in the “Absolute Maximum Ratings” table may
cause permanent damage to the device. These are stress ratings only and operation of the
device at these or any other conditions above those indicated in the Operating sections of
this specification is not implied. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Table 8.
1. For SO package, standard (SnPb) lead finish: Reflow at peak temperature of 225°C (total thermal budget
2. For SO package, Lead-free (Pb-free) lead finish: Reflow at peak temperature of 260°C (total thermal
Negative undershoots below –0.3V are not allowed on any pin while in the Battery Back-up
mode.
Do NOT wave solder SOIC to avoid damaging SNAPHAT sockets.
T
Symbol
not to exceed 180°C for between 90 to 150 seconds).
budget not to exceed 245°C for greater than 30 seconds).
SLD
T
V
V
P
T
STG
I
CC
O
IO
A
D
(1)(2)
Absolute maximum ratings
Ambient Operating Temperature
Storage Temperature (V
Oscillator Off)
Lead Solder Temperature for 10 seconds
Input or Output Voltages
Supply Voltage
Output Current
Power Dissipation
Parameter
CC
Off,
SNAPHAT
M48T37Y
M48T37V
M48T37Y
M48T37V
Grade 1
Grade 6
SOIC
®
–55 to 150
–0.3 to 4.6
–0.3 to 4.6
–40 to 85
–40 to 85
–0.3 to 7
–0.3 to 7
0 to 70
Value
260
10
1
Unit
mA
°C
°C
°C
°C
°C
W
V
V
V
V