DS1330Y Maxim, DS1330Y Datasheet

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DS1330Y

Manufacturer Part Number
DS1330Y
Description
The DS1330 256k Nonvolatile (NV) SRAMs are 262,144-bit, fully static, NV SRAMs organized as 32,768 words by 8 bits
Manufacturer
Maxim
Datasheet

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19-5593; Rev 10/10
FEATURES
 10 years minimum data retention in the
 Data is automatically protected during power
 Power supply monitor resets processor when
 Battery monitor checks remaining capacity
 Read and write access times of 70ns
 Unlimited write cycle endurance
 Typical standby current 50µA
 Upgrade for 32k x 8 SRAM, EEPROM or
 Lithium battery is electrically disconnected to
 Full ±10% V
 Optional industrial temperature range of
 PowerCap Module (PCM) package
DESCRIPTION
The DS1330 256k NV SRAMs are 262,144-bit, fully static, NV SRAMs organized as 32,768 words by 8
bits. Each NV SRAM has a self-contained lithium energy source and control circuitry which constantly
monitors V
is automatically switched on and write protection is unconditionally enabled to prevent data corruption.
Additionally, the DS1330 devices have dedicated circuitry for monitoring the status of V
of the internal lithium battery. DS1330 devices in the PowerCap module package are directly surface
mountable and are normally paired with a DS9034PC PowerCap to form a complete NV SRAM module.
The devices can be used in place of 32k x 8 SRAM, EEPROM, or Flash components.
www.maxim-ic.com
absence of external power
loss
V
reset during V
daily
Flash
retain freshness until power is applied for the
first time
or optional ±5% V
(DS1330AB)
-40°C to +85°C, designated IND
-
-
-
-
CC
Directly surface-mountable module
Replaceable snap-on PowerCap provides
lithium backup battery
Standardized pinout for all nonvolatile
(NV) SRAM products
Detachment feature on PowerCap allows
easy removal using a regular screwdriver
power loss occurs and holds processor in
CC
for an out-of-tolerance condition. When such a condition occurs, the lithium energy source
CC
CC
operating range (DS1330Y)
ramp-up
CC
operating range
1 of 10
PIN ASSIGNMENT
PIN DESCRIPTION
A0 – A14
DQ0 – DQ7
V
GND
NC
CE
WE
OE
RST
BW
GND
CC
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
RST
BW
V
WE
NC
NC
OE
CE
CC
(Uses DS9034PC+ or DS9034PCI+ PowerCap)
34-Pin POWERCAP MODULE (PCM)
256k Nonvolatile SRAM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
with Battery Monitor
GND V
- Address Inputs
- Data In/Data Out
- Chip Enable
- Write Enable
- Output Enable
- Reset Output
- Battery Warning
- Power (+5V)
- Ground
- No Connect
BAT
DS1330Y/AB
CC
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
and the status
NC
NC
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0

Related parts for DS1330Y

DS1330Y Summary of contents

Page 1

... Typical standby current 50µA  Upgrade for 32k x 8 SRAM, EEPROM or Flash  Lithium battery is electrically disconnected to retain freshness until power is applied for the first time  Full ±10% V operating range (DS1330Y optional ±5% V operating range CC (DS1330AB)  Optional industrial temperature range of -40° ...

Page 2

... V to the RAM and disconnects the lithium energy source. Normal RAM operation CC can resume after V exceeds 4.75V for the DS1330AB and 4.5V for the DS1330Y. CC SYSTEM POWER MONITORING DS1330 devices have the ability to monitor the external V power supply condition is detected, the NV SRAMs warn a processor-based system of impending power failure by asserting ...

Page 3

... After a DS1330 PCM is reflow soldered, a DS9034PC is snapped on top of the PCM to form a complete NV SRAM module. The DS9034PC is keyed to prevent improper attachment. DS1330 PowerCap modules and DS9034PC PowerCaps are ordered separately and shipped in separate containers. See the DS9034PC data sheet for further information DS1330Y/AB ...

Page 4

... DS1330Y/AB -0.3V to +6.0V 0°C to +70°C -40°C to +85°C -55°C to +125° See Note 10) A TYP MAX UNITS 5.0 5.25 V 5 ± 5% for DS1330AB ± 10% for DS1330Y) CC TYP MAX UNITS µA +1.0 µA +1 µA 200 600 µA 50 150 85 mA 4.62 4.75 V 4.37 4.5 V +260°C +260° ...

Page 5

... WR2 t ODW t 5 OEW DH1 t 7 DH2 DS1330Y/ +25°C) A MAX UNITS NOTES ± 5% for DS1330AB ± 10% for DS1330Y) CC UNITS NOTES MAX ...

Page 6

... WRITE CYCLE 1 SEE NOTES and 12 WRITE CYCLE 2 SEE NOTES and DS1330Y/AB ...

Page 7

... POWER-DOWN/POWER-UP CONDITION BATTERY WARNING DETECTION DS1330Y/AB ...

Page 8

... See Note 10) A TYP MAX UNITS TYP MAX UNITS years is measured from the latter of low transition, the output WE high transition, the output WE low transition, CE DS1330Y/AB NOTES NOTES = +25°C) NOTES ...

Page 9

... TOLERANCE 0°C to +70°C -40°C to +85°C 5V ± 10% 0°C to +70°C 5V ± 10% -40°C to +85°C OUTLINE NO. PC2 starting from the time power PIN-PACKAGE 5V ± PCAP* 5V ± PCAP* 34 PCAP* 34 PCAP* LAND PATTERN NO. 21-0246 DS1330Y/ Note — ...

Page 10

... Updated the storage, lead, and soldering information in the Absolute Maximum Ratings section, removed the unused AC timing specs in 10/10 the AC Electrical Characteristics table, updated the Ordering Information table, replaced the package outline drawing with the Package Information table DESCRIPTION DS1330Y/AB PAGES CHANGED ...

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