M48T35AV-10MH1 STMicroelectronics, M48T35AV-10MH1 Datasheet - Page 5

• Manufacturer Part Number: M48T35AV-10MH1
• Manufacturer: STMicroelectronics
• Type: NVSRAMr

Specifications of M48T35AV-10MH1

• Word Size: 8b
• Organization: 32Kx8
• Density: 256Kb
• Interface Type: Parallel
• Access Time (max): 100ns
• Operating Supply Voltage (typ): 3.3V
• Package Type: SOH
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Operating Temp Range: 0C to 70C
• Pin Count: 28
• Mounting: Surface Mount
• Supply Current: 30mA
• Lead Free Status / RoHS Status: Compliant

M48T35AV
1
Description
The M48T35AV TIMEKEEPER
clock. The monolithic chip is available in two special packages to provide a highly integrated
battery-backed memory and real-time clock solution.
The M48T35AV is a non-volatile pin and function equivalent to any JEDEC standard
32 Kb 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, 600 mil DIP CAPHAT
a long-life lithium button cell in a single package.
The 28-pin, 330 mil SOIC provides sockets with gold plated contacts at both ends for direct
connection to a separate SNAPHAT
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 and crystal damage due to the high
temperatures required for device surface-mounting. The SNAPHAT housing is keyed to
prevent reverse insertion.
The SOIC and battery/crystal packages are shipped separately in plastic anti-static tubes or
in tape & reel form.
For the 28-lead SOIC, the battery/crystal package part numbers are M4T28-BR12SH1 (48
mAh lithium battery SNAPHAT), M4T32-BR12SH1 (120 mAh lithium battery SNAPHAT),
and M4T32-BR12SH6 (120 mAh lithium battery SNAPHAT, –40 to +85 °C crystal).
Figure 1.
Logic diagram
A0-A14
W
G
E
Doc ID 6845 Rev 8
®
RAM is a 32 Kbit x 8 non-volatile static RAM and real-time
™
15
houses the M48T35AV silicon with a quartz crystal and
®
housing containing the battery and crystal. The
V CC
M48T35AV
V SS
8
DQ0-DQ7
Description
AI02797B
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