DS3070W Maxim Integrated Products, DS3070W Datasheet
DS3070W
Manufacturer Part Number
DS3070W
Description
Manufacturer
Maxim Integrated Products
Datasheet
1.DS3070W.pdf
(18 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
DS3070W-100#
Manufacturer:
Maxim Integrated
Quantity:
10 000
The DS3070W 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
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
powered down or out-of-tolerance, the controller write-
protects the memory contents and powers the clock
and SRAM from the battery. The DS3070W also con-
tains a power-supply monitor output (RST), as well as a
user-programmable interrupt output (IRQ/FT).
RAID Systems and Servers
POS Terminals
Industrial Controllers
Data-Acquisition Systems
Rev 0; 6/06
#Denotes a RoHS-compliant device that may include lead that is exempt under the RoHS requirements.
Pin Configuration appears at end of data sheet.
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.
DS3070W-100#
PART
CC
3.3V Single-Piece 16Mb Nonvolatile SRAM
is applied to the module, it recharges
-40°C to +85°C
TEMP RANGE
MICROPROCESSOR
General Description
OR DSP
ADDRESS
DATA
Gaming
Fire Alarms
PLCs
Routers/Switches
INT
INT
WR
RD
CS
CE
Applications
______________________________________________ Maxim Integrated Products
256-ball 27mm x 27mm BGA Module
PIN-PACKAGE
CC
is
21 BITS
8 BITS
o Single-Piece, Reflowable, 27mm x 27mm BGA
o Internal Manganese Lithium Battery and Charger
o Integrated Real-Time Clock
o Unconditionally Write-Protects the Clock and
o Automatically Switches to Battery Supply when
o Reset Output can be Used as a CPU Supervisor
o Interrupt Output can be Used as a CPU Watchdog
o Industrial Temperature Range (-40°C to +85°C)
o UL Recognized
Package Footprint
SRAM when V
V
Timer
CC
Power Failures Occur
Typical Operating Circuit
CC
CE
DQ0–7
A0–20
IRQ/FT
WE
OE
CS
RST
SPEED
is Out-of-Tolerance
100ns
Ordering Information
DS3070W
NV SRAM
2048k x 8
AND RTC
with Clock
SUPPLY VOLTAGE
3.3V ±0.3V
Features
1
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