M48T201Y-70MH1E STMicroelectronics, M48T201Y-70MH1E Datasheet - Page 16

• Manufacturer Part Number: M48T201Y-70MH1E
• Description: IC SUPERVISOR TIMEKPR 5V 44-SOH
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T201Y-70MH1E

• Memory Size: External
• 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: Surface Mount
• Package / Case: 44-SOH
• Number Of Voltages Monitored: 1
• Monitored Voltage: 3.3 V, 5 V
• Manual Reset: Not Resettable
• Watchdog: Watchdog
• Battery Backup Switching: Backup
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Supply Current (typ): 15000 uA
• Maximum Power Dissipation: 1000 mW
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Power Fail Detection: Yes
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-2840-5; M48T201Y-70MH1

Operation
Note:
16/37
Most low power SRAMs on the market today can be used with the M48T201Y/V
TIMEKEEPER
making the final choice of an SRAM to use.
The SRAM must be designed in a way where the chip enable input disables all other inputs
to the SRAM. This allows inputs to the M48T201Y/V and SRAMs to be “Don't care” once
V
V
the chip enable (and output enable) output propagation delays included.
CC
CC
falls below V
= 2.0 V. The chip enable access time must be sufficient to meet the system needs with
®
SUPERVISOR. There are, however some criteria which should be used in
PFD
(min). The SRAM should also guarantee data retention down to
M48T201Y, M48T201V