M48Z35Y-70PC1 STMicroelectronics, M48Z35Y-70PC1 Datasheet - Page 2
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M48Z35Y-70PC1
Manufacturer Part Number
M48Z35Y-70PC1
Description
IC NVSRAM 256KBIT 70NS 28DIP
Manufacturer
STMicroelectronics
Specifications of M48Z35Y-70PC1
Format - Memory
RAM
Memory Type
NVSRAM (Non-Volatile SRAM)
Memory Size
256K (32K x 8)
Speed
70ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
28-DIP Module (600 mil), 28-EDIP
Data Bus Width
8 bit
Organization
32 Kb x 8
Interface Type
Parallel
Access Time
70 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Operating Current
50 mA
Maximum Operating Temperature
70 C
Minimum Operating Temperature
0 C
Mounting Style
Through Hole
Capacitance, Input
10 pF
Capacitance, Output
10 pF
Current, Input, Leakage
±1 μA
Current, Operating
50 mA
Current, Output, Leakage
±5
Data Retention
10 yrs.
Density
256K
Package Type
PCDIP28
Power Dissipation
1 W
Temperature, Operating
0 to +70 °C
Time, Access
70 ns
Time, Fall
≤5 ns
Time, Rise
≤5 ns
Voltage, Input, High
4.8 to 5.8 V
Voltage, Input, Low
0.8 V
Voltage, Output, High
2.4 V
Voltage, Output, Low
0.4 V
Voltage, Supply
4.5 to 5.5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
497-2885-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M48Z35Y-70PC1
Manufacturer:
ST
Quantity:
20 000
M48Z35, M48Z35Y
Description
1
Description
®
The M48Z35/Y ZEROPOWER
RAM is a 32K x 8, non-volatile static RAM that integrates
power-fail deselect circuitry and battery control logic on a single die. The monolithic chip is
available in two special packages to provide a highly integrated battery backed-up memory
solution.
The M48Z35/Y is a non-volatile pin and function equivalent to any JEDEC standard 32K x 8
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 CAPHAT™ houses
the M48Z35/Y silicon with a long life lithium button cell in a single package.
The 28-pin 330mil SOIC provides sockets with gold plated contacts at both ends for direct
connection to a separate SNAPHAT housing containing 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.
The SOIC and battery packages are shipped separately in plastic anti-static tubes or in Tape
& Reel form.
For the 28-lead SOIC, the battery package (i.e. SNAPHAT) part number is “M4Z28-
BR00SH1.”
Figure 1.
Logic diagram
V CC
15
8
A0-A14
DQ0-DQ7
W
M48Z35
M48Z35Y
E
G
V SS
AI01616D
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