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DS1710 Datasheet

  • DS1710

  • Partitioned NV Controller

  • 210.56KB

  • Dallas ;  Dallas

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DS1710
Partitioned NV Controller
www.dalsemi.com
FEATURES
Converts CMOS RAMs into nonvolatile
memories
Automatically selects +3.0V or +5.0V
operation
SOIC version is pin-compatible with the
Dallas Semiconductor DS1210S and
DS1610S NV Controllers
Unconditionally write protects all of memory
when V
CC
is out of tolerance
Write protects selected blocks of memory
regardless of V
CC
status when programmed
Automatically switches to battery backup
supply when power-fail occurs
Provides for multiple batteries
Consumes less than 100 nA of battery current
Test battery on power-up by inhibiting the
second memory cycle
Optional 5% or 10% power-fail detection
16-pin DIP or 16-pin SOIC surface mount
package or 20-pin TSSOP package
Low forward voltage drop on the V
CC
switch
with currents of up to 150 mA
Optional industrial temperature range of
-40掳C to +85掳C
PIN ASSIGNMENT
A
W
V
CCO
A
X
V
BAT1
A
Y
TOL
DIS
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PFO
V
CCI
A
Z
V
BAT2
WEO
CEO
WEI
CEI
16-Pin DIP and 16-Pin SOIC
A
W
V
CCO
A
X
V
BAT1
A
Y
NC
TOL
NC
DIS
GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
PFO
V
CCI
A
Z
V
BAT2
NC
WEO
NC
CEO
WEI
CEI
20-Pin TSSOP
PIN DESCRIPTION
V
CCI
V
BAT1
V
BAT2
V
CCO
GND
CEI
CEO
WEI
WEO
TOL
A
W
- A
Z
DIS
PFO
NC
- Input 2.7 to 5.5 Volt Supply
- + Battery 1 Input
- + Battery 2 Input
- RAM Power (V
CC
) Supply
- Ground
- Chip Enable Input
- Chip Enable Output
- Write Enable Input
- Write Enable Output
- Power Supply Tolerance Select
- Address Inputs
- Memory Partition Disable
- Power-fail Output
- No Connect
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