參數(shù)資料
型號(hào)： M48T39YPM
廠商： 意法半導(dǎo)體
英文描述： DIODE ZENER SINGLE 500mW 3.9Vz 20mA-Izt 0.05 10uA-Ir 1 SOD-123 3K/REEL
中文描述： 256 KB的32K的x8 SRAM的計(jì)時(shí)器
文件頁(yè)數(shù)： 1/4頁(yè)
文件大?。?/td> 30K
代理商： M48T39YPM
1/4
PRELIMINARY DATA
January 1998
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
M48T39Y
256 Kb (32K 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 VOLTAGE
(V
PFD
= Power-fail Deselect Voltage):
– M48T39Y: 4.20V
≤
V
PFD
≤
4.50V
I
PROGRAMMABLE INTERRUPTS and
SQUARE WAVE OUTPUT
I
WATCHDOG TIMER RESTARTS on
OUT-OF-CONTROL PROCESSOR
I
CLOCK ACCURACY IS BETTER THAN
±1 MINUTE per MONTH at 25°C
I
10 YEARS of DATA RETENTION and CLOCK
OPERATION in the ABSENCE of POWER
I
SELF-CONTAINED BATTERY and CRYSTAL
in DIP PACKAGE
I
PROGRAMMABLE ALARM OUTPUT ACTIVE
in the BATTERY BACK-UP MODE
I
PIN and FUNCTION COMPATIBLE with
DS1386
DESCRIPTION
The M48T39Y TIMEKEEPER
RAM is a non-vol-
atile 262,144 bit static RAM and real time clock or-
ganized as 32,768 words by 8 bits. System
integration
features
include
Alarms, Watchdog Timer and Interval Timer. The
special 32-pin DIP package provides a highly inte-
grated battery back-up memory and real time
clock solution.
Programmable
Figure 1. Logic Diagram
AI02311
15
A0-A14
W
DQ0-DQ7
VCC
M48Z129Y
G
VSS
8
E
INTA
INTB
SQW
32
1
PMDIP32 (PM)
Module
相關(guān)PDF資料
PDF描述
M48T512Y-70PM1 Shielded Multiconductor Cable; Number of Conductors:5; Conductor Size AWG:24; No. Strands x Strand Size:7 x 32; Jacket Material:Polyvinylchloride (PVC); Leaded Process Compatible:Yes; Conductor Material:Copper; Temperature Max:80 C RoHS Compliant: Yes
M48T512Y-85PM1 3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM
M48T512YPM 3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM
M48T513VPM 3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM
M48T513V-70CS1 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
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
M48T512V-85PM1 功能描述:實(shí)時(shí)時(shí)鐘 4 MBIT 512 Kbitx8 TIMEKEEPER RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube
M48T512VPM 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM
M48T512Y 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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