- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377827 > M48T39Y (意法半導(dǎo)體) 256Kb (32K x 8) Timekeeper SRAM(256K位(32K x 8) Timekeeper 靜態(tài)RAM) PDF資料下載
參數(shù)資料
| 型號(hào)： | M48T39Y |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 256Kb (32K x 8) Timekeeper SRAM(256K位(32K x 8) Timekeeper 靜態(tài)RAM) |
| 中文描述： | 256Kb的（32K的× 8）計(jì)時(shí)器的SRAM（256K位（32K的× 8）計(jì)時(shí)器靜態(tài)內(nèi)存） |
| 文件頁(yè)數(shù)： | 1/4頁(yè) |
| 文件大?。?/td> | 40K |
| 代理商： | M48T39Y |
M48T39Y
256Kb (32K x 8) TIMEKEEPER
SRAM
PRELIMINARY DATA
January 1998
1/4
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
INTEGRATED ULTRA LOW POWER SRAM,
REAL TIME CLOCK, POWER-FAIL CONTROL
CIRCUIT, BATTERY and CRYSTAL
BCD CODED YEAR, MONTH, DAY, DATE,
HOURS, MINUTES and SECONDS
AUTOMATIC POWER-FAIL CHIP DESELECT
and WRITE PROTECTION
WRITE PROTECT VOLTAGE
(V
PFD
= Power-fail Deselect Voltage):
– M48T39Y: 4.20V
≤
V
PFD
≤
4.50V
PROGRAMMABLE INTERRUPTS and
SQUARE WAVE OUTPUT
WATCHDOG TIMER RESTARTS on
OUT-OF-CONTROL PROCESSOR
CLOCK ACCURACY IS BETTER THAN
±
1 MINUTE per MONTH at 25 °C
10 YEARS of DATA RETENTION and CLOCK
OPERATION in the ABSENCE of POWER
SELF-CONTAINED BATTERY and CRYSTAL
in DIP PACKAGE
PROGRAMMABLE ALARM OUTPUT ACTIVE
in the BATTERY BACK-UP MODE
PIN and FUNCTION COMPATIBLE with
DS1386
DESCRIPTION
The M48T39Y TIMEKEEPER
RAM is a non-vola-
tile 262,144 bit static RAM and real time clock
organized as 32,768 words by 8 bits. System inte-
gration features include Programmable Alarms,
Watchdog Timer and Interval Timer. The special
32-pin DIP package provides a highly integrated
battery back-up memory and real time clock solu-
tion.
AI02311
15
A0-A14
W
DQ0-DQ7
VCC
M48Z129Y
G
VSS
8
E
INTA
INTB
SQW
Logic Diagram
32
1
PMDIP32 (PM)
Module
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M48T512V | 3.3V-5V 4Mbit (512Kb x 8) Timekeeper SRAM(4Mb TIMERKEEPEER SRAM) |
| M48T512Y | 3.3V-5V 4Mbit (512Kb x 8) Timekeeper SRAM(4Mb TIMERKEEPEER SRAM) |
| M48T513V | 3.3V-5V 4Mb (512K x 8) Timekeeper SRAM(4Mb TIMERKEEPEER SRAM) |
| M48T513Y | 3.3V-5V 4Mb (512K x 8) Timekeeper SRAM(4Mb TIMERKEEPEER SRAM) |
| M48T559Y | 64Kbit (8Kb x 8) Timekeeper SRAM with Address/Data Multiplexed(64K位 (8Kb x 8)非易失性靜態(tài)RAM（帶地址/數(shù)據(jù)多路轉(zhuǎn)換輸入/輸出腳）) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M48T39Y-100PM1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256 Kb 32K x8 TIMEKEEPER SRAM |
| M48T39Y-150PM1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256 Kb 32K x8 TIMEKEEPER SRAM |
| M48T39YPM | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256 Kb 32K x8 TIMEKEEPER SRAM |
| M48T512V | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T512V-70PM1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。