DS1330AB Maxim, DS1330AB Datasheet

DS1330AB

Manufacturer Part Number

DS1330AB

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

1.DS1330AB.pdf (10 pages)

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

DS1330ABP-70

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Download datasheet (212Kb)

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

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

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

for an out-of-tolerance condition. When such a condition occurs, the lithium energy source

operating range (DS1330Y)

ramp-up

operating range

1 of 10

PIN ASSIGNMENT

PIN DESCRIPTION

A0 – A14

DQ0 – DQ7

GND

RST

GND

DQ7

DQ6

DQ5

DQ4

DQ3

DQ2

DQ1

DQ0

RST

(Uses DS9034PC+ or DS9034PCI+ PowerCap)

34-Pin POWERCAP MODULE (PCM)

256k Nonvolatile SRAM

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

and the status

A14

A13

A12

A11

A10

Related parts for DS1330AB

DS1330AB Summary of contents

Page 1

... Full ±10% V operating range (DS1330Y optional ±5% V operating range CC (DS1330AB)  Optional industrial temperature range of -40°C to +85°C, designated IND  PowerCap Module (PCM) package - Directly surface-mountable module - Replaceable snap-on PowerCap provides ...

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

PACKAGES The 34-pin PowerCap module integrates SRAM memory and NV control along with contacts for connection to the lithium battery in the DS9034PC PowerCap. The PowerCap module package design allows a DS1330 PCM device to be surface mounted without subjecting ...

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. ...

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

POWER-DOWN/POWER-UP TIMING PARAMETER V Fail Detect to and slew from Fail Detect to Active RST CC V slew from Valid to and Inactive CE ...

Page 9

... Outputs Open Cycle = 200ns for operating current All voltages are referenced to ground ORDERING INFORMATION PART DS1330ABP-70+ DS1330ABP-70IND+ DS1330YP-70+ DS1330YP-70IND+ +Denotes a lead(Pb)-free/RoHS-compliant package. *DS9034PC+ or DS9034PCI+ (PowerCap) required. Must be ordered separately. PACKAGE INFORMATION For the latest package outline information and land patterns www.maxim-ic.com/packages. ...

Page 10

... REVISION HISTORY REVISION DATE 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 ...

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