M48T35Y-70PC1 STMicroelectronics, M48T35Y-70PC1 Datasheet - Page 26

• Manufacturer Part Number: M48T35Y-70PC1
• Description: IC TIMEKPR NVRAM 256KBIT 5V 28DI
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T35Y-70PC1

• 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: Through Hole
• Package / Case: 28-DIP Module (600 mil), 28-EDIP
• 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: Through Hole
• Rtc Bus Interface: Parallel
• Capacitance, Input: 10 pF
• Capacitance, Load: 100 pF
• Capacitance, Output: 10 pF
• Current, Input, Leakage: ±1 μA
• Current, Leakage Input: ± 1 μA (Max.)
• Current, Operating: 30 mA
• Current, Output, Leakage: ±1
• Current, Supply: 30 mA (Max.)
• Data Retention: 10 yrs.
• Density: 256K
• Frequency, Crystal: 32768
• Memory Type: SRAM
• Organization: 32K×8
• Package Type: PDIP28
• Power Dissipation: 1 W
• Temperature, Operating: 0 to +70 °C
• Temperature, Operating, Maximum: +70 °C
• Temperature, Operating, Minimum: 0 °C
• Time, Access: 70 ns
• Time, Fall: ≤5 ns
• Time, Read Cycle: 70 ns
• Time, Rise: ≤5 ns
• Time, Write Cycle: 70 ns
• Voltage, Input Range: -0.3 to 7 V
• 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: 497-2851-5

Environmental information
8
26/28
Environmental information
Figure 17. Recycling symbols
This product contains a non-rechargeable lithium (lithium carbon monofluoride chemistry)
button cell battery fully encapsulated in the final product.
Recycle or dispose of batteries in accordance with the battery manufacturer's instructions
and local/national disposal and recycling regulations.
Please refer to the following web site address for additional information regarding
compliance statements and waste recycling.
Go to www.st.com/rtc, then select "Lithium Battery Recycling" from "Related Topics".
Doc ID 2611 Rev 9
M48T35, M48T35Y