M48T37Y-70MH1E STMicroelectronics, M48T37Y-70MH1E Datasheet - Page 28

• Manufacturer Part Number: M48T37Y-70MH1E
• Description: IC TIMEKPR NVRAM 256KBIT5V 44SOH
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T37Y-70MH1E

• 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: Surface Mount
• Package / Case: 44-SOH
• Bus Type: Parallel
• User Ram: 32KB
• Operating Supply Voltage (typ): 5V
• Package Type: SOH
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 44
• Mounting: Surface Mount
• Memory Configuration: 32K X 8
• Nvram Features: RTC
• Interface Type: Parallel
• Access Time: 70ns
• Supply Voltage Range: 4.5V To 5.5V
• Memory Case Style: SOIC
• No. Of Pins: 44
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2854-5; M48T37Y-70MH1

M48T37Y, M48T37V
REVISION HISTORY
Table 19. Document Revision History
28/29
December 1999
20-May-02
06-Aug-01
07-Feb-00
31-Mar-03
19-Jun-01
15-Jan-02
01-Apr-04
11-Jul-00
Date
Rev. #
1.0
2.0
2.1
3.0
3.1
3.2
3.3
4.0
5.0
First Issue
From Preliminary Data to Data Sheet; Battery Low Flag paragraph changed; 100ns
speed class identifier changed (Tables 3, 4)
t
Reformatted; added temp./voltage info. to tables (Table 10, 11, 3, 4, 12, 13)
Fix text for Setting the Alarm Clock (Figure 8)
Fix footnote numbering (Table 17)
Modify reflow time and temperature footnote (Table 8)
v2.2 template applied; data retention condition updated (Table 13)
Reformatted; updated with Lead-free package information (Table 8, 17)
FB
changed (Table 12); watchdog timer paragraph changed
Revision Details