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M48Z35AY-70MH6 View Datasheet(PDF) - STMicroelectronics

Part Name
Description
Manufacturer
M48Z35AY-70MH6
ST-Microelectronics
STMicroelectronics ST-Microelectronics
M48Z35AY-70MH6 Datasheet PDF : 16 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Table 3. Operating Modes (1)
Mode
VCC
E
G
Deselect
VIH
X
Write
Read
4.5V to 5.5V
or
3.0V to 3.6V
VIL
X
VIL
VIL
Read
VIL
VIH
Deselect
VSO to VPFD (min) (2)
X
X
Deselect
≤ VSO
X
X
Note: 1. X = VIH or VIL; VSO = Battery Back-up Switchover Voltage.
2. See Table 7 for details.
Figure 3. Block Diagram
M48Z35AY, M48Z35AV
W
DQ0-DQ7
Power
X
High Z
Standby
VIL
DIN
VIH
DOUT
VIH
High Z
Active
Active
Active
X
High Z
CMOS Standby
X
High Z Battery Back-up Mode
LITHIUM
CELL
VOLTAGE SENSE
AND
SWITCHING
CIRCUITRY
POWER
VPFD
32K x 8
SRAM ARRAY
A0-A14
DQ0-DQ7
E
W
G
VCC
VSS
AI01619B
The M48Z35AY/35AV is a non-volatile pin and
function equivalent to any JEDEC standard 32K x8
SRAM. It also easily fits into many ROM, EPROM,
and EEPROM sockets, providing the non-volatility
of PROMs without any requirement for special
write timing or limitations on the number of writes
that can be performed. The 28 pin 600mil DIP
CAPHATâ„¢ houses the M48Z35AY/35AV silicon
with a long life lithium button cell in a single pack-
age.
The 28 pin 330mil SOIC provides sockets with
gold plated contacts at both ends for direct con-
nection to a separate SNAPHAT housing contain-
ing the battery. The unique design allows the
SNAPHAT battery package to be mounted on top
of the SOIC package after the completion of the
surface mount process. Insertion of the SNAPHAT
housing after reflow prevents potential battery
damage due to the high temperatures required for
device surface-mounting. The SNAPHAT housing
is keyed to prevent reverse insertion.
3/16
 

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