參數(shù)資料
型號(hào): DS3065W-100
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: DRAM
英文描述: 3.3V Single-Piece 8Mb Nonvolatile SRAM with Clock
中文描述: 1M X 8 NON-VOLATILE SRAM MODULE, 100 ns, PBGA256
封裝: 27 X 27 MM, MODULE, BGA-256
文件頁數(shù): 1/18頁
文件大小: 321K
代理商: DS3065W-100
General Description
The DS3065W consists of a static RAM, a nonvolatile
(NV) controller, a year 2000-compliant real-time clock
(RTC), and an internal rechargeable manganese lithium
(ML) battery. These components are encased in a sur-
face-mount module with a 256-ball BGA footprint.
Whenever V
CC
is applied to the module, it recharges
the ML battery, powers the clock and SRAM from the
external power source, and allows the contents of the
clock registers or SRAM to be modified. When V
CC
is
powered down or out-of-tolerance, the controller write-
protects the memory contents and powers the clock
and SRAM from the battery. The DS3065W also con-
tains a power-supply monitor output (
RST
), as well as a
user-programmable interrupt output (
IRQ
/FT).
Applications
Gaming
Fire Alarms
PLCs
Routers/Switches
RAID Systems and Servers
POS Terminals
Industrial Controllers
Data-Acquisition Systems
Features
Single-Piece, Reflowable, 27mm x 27mm BGA
Package Footprint
Internal Manganese Lithium Battery and Charger
Integrated Real-Time Clock
Unconditionally Write-Protects the Clock and
SRAM when V
CC
is Out-of-Tolerance
Automatically Switches to Battery Supply when
V
CC
Power Failures Occur
Reset Output can be Used as a CPU Supervisor
Interrupt Output can be Used as a CPU Watchdog
Timer
Industrial Temperature Range (-40°C to + 85°C)
UL Recognized
D
3.3V Single-Piece 8Mb Nonvolatile SRAM
with Clock
______________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
CE
DATA
ADDRESS
INT
RST
A0–19
DQ0–7
CE
20 BITS
8 BITS
MICROPROCESSOR
OR DSP
DS3065W
1024k x 8
NV SRAM
AND RTC
WR
WE
RD
OE
INT
IRQ/FT
CS
CS
Typical Operating Circuit
Rev 0; 4/05
Ordering Information
Pin Configuration appears at end of data sheet.
PART
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
SPEED
100ns
SUPPLY VOLTAGE (%)
3.3V ±0.3V
DS3065W-100
256-ball 27mm x 27mm BGA Module
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