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參數(shù)資料
| 型號(hào)： | M48T512YPM |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| 中文描述： | 3.3 - 5V的4兆位的SRAM 512KB的x8計(jì)時(shí)器 |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大?。?/td> | 104K |
| 代理商： | M48T512YPM |
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1/14
December 1999
M48T512Y
M48T512V
3.3V-5V 4 Mbit (512Kb x8) TIMEKEEPER
SRAM
I
INTEGRATED ULTRA LOW POWER SRAM,
REAL TIME CLOCK, POWER-FAIL CONTROL
CIRCUIT, BATTERY, and CRYSTAL
I
BCD CODED YEAR, MONTH, DAY, DATE,
HOURS, MINUTES, and SECONDS
I
AUTOMATIC POWER-FAIL CHIP DESELECT
and WRITE PROTECTION
I
WRITE PROTECT VOLTAGES:
(V
PFD
= Power-fail Deselect Voltage)
– M48T512Y: 4.2V
≤
V
PFD
≤
4.5V
– M48T512V: 2.7V
≤
V
PFD
≤
3.0V
I
CONVENTIONAL SRAM OPERATION;
UNLIMITED WRITE CYCLES
I
SOFTWARE CONTROLLED CLOCK
CALIBRATION FOR HIGH ACCURACY
APPLICATIONS
I
10 YEARS of DATA RETENTION and CLOCK
OPERATION in the ABSENCE OF POWER
I
PIN and FUNCTION COMPATIBLE with
INDUSTRY STANDARD 512K X 8 SRAMS
I
SELF-CONTAINED BATTERY and CRYSTAL
in DIP PACKAGE
DESCRIPTION
The M48T512Y/V TIMEKEEPER RAM is a 512Kb
x 8 non-volatile static RAM and real time clock or-
ganized as 524,288 words by 8 bits. The special
DIP package provides a fully integrated battery
back-up memory and real time clock solution.
Figure 1. Logic Diagram
AI02262
19
A0-A18
DQ0-DQ7
VCC
M48T512Y
M48T512V
G
VSS
8
E
W
Table 1. Signal Names
A0-A18
Address Inputs
DQ0-DQ7
Data Inputs / Outputs
E
Chip Enable Input
G
Output Enable Input
W
Write Enable Input
V
CC
Supply Voltage
V
SS
Ground
32
1
PMDIP32 (PM)
Module
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M48T513VPM | 3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513V-70CS1 | 3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513V-70PM1 | 3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513V-85CS1 | 3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513V-85PM1 | 3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M48T513V | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513V-70CS1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513V-70PM1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513V-85CS1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513V-85PM1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
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