M48T128Y-70PM1 STMicroelectronics, M48T128Y-70PM1 Datasheet - Page 6

• Manufacturer Part Number: M48T128Y-70PM1
• Description: IC TIMEKPR NVRAM 1MBIT 5V 32-DIP
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T128Y-70PM1

• Memory Size: 1M (128K 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: 32-DIP (600 mil) Module
• Function: Clock, Calendar, NV Timekeeping RAM, Battery Backup
• Rtc Memory Size: 1 MB
• Supply Voltage (max): 4.5 V to 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2834-5

Description
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Figure 2.
Figure 3.
32,768 Hz
CRYSTAL
DIP connections
Block diagram
LITHIUM
CELL
OSCILLATOR AND
VOLTAGE SENSE
CLOCK CHAIN
SWITCHING
CIRCUITRY
Doc ID 5746 Rev 6
AND
V CC
DQ0
DQ1
DQ2
V SS
A16
A14
A12
NC
A7
A6
A5
A4
A3
A2
A1
A0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
POWER
M48T128Y
M48T128V
V PFD
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
V CC
A15
NC
W
A13
A8
A9
A11
G
A10
E
DQ7
DQ6
DQ5
DQ4
DQ3
SRAM ARRAY
TIMEKEEPER
131,064 x 8
REGISTERS
8 x 8
V SS
M48T128Y, M48T128V
A0-A16
DQ0-DQ7
E
W
G
AI02245
AI01804