Maxim > Products > Memory > DS1230AB, DS1230Y

DS1230AB, DS1230Y

256k Nonvolatile SRAM
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Status Explanations for product status codes

Part Number Status
DS1230AB Active: In Production. See Ordering Information for details.
DS1230Y Active: In Production. See Ordering Information for details.

Description

The DS1230 256k Nonvolatile (NV) SRAMs are 262,144-bit, fully static, nonvolatile 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 VCC for an out-of-tolerance condition. When such a condition occurs, the lithium energy source is automatically switched on and write protection is unconditionally enabled to prevent data corruption. DIP-package DS1230 devices can be used in place of existing 32k x 8 static RAMs directly conforming to the popular bytewide 28-pin DIP standard. The DIP devices also match the pinout of 28256 EEPROMs, allowing direct substitution while enhancing performance. DS1230 devices in the Low Profile Module package are specifically designed for surface-mount applications. There is no limit on the number of write cycles that can be executed and no additional support circuitry is required for microprocessor interfacing.
 

Data Sheet

Download this datasheet in PDF formatDownload Rev 4 (PDF, 224kB)
Send this datasheet to any email addressE-Mail
This product contains lithium-metal batteries. See applicable regulations for transport requirements for batteries in equipment.

Key Features

  • 10 years minimum data retention in the absence of external power
  • Data is automatically protected during power loss
  • Replaces 32k x 8 volatile static RAM, EEPROM or Flash memory
  • Unlimited write cycles
  • Low-power CMOS
  • Read and write access times of 70ns
  • Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time
  • Full ±10% VCC operating range (DS1230Y)
  • Optional ±5% VCC operating range (DS1230AB)
  • Optional industrial temperature range of -40°C to +85°C, designated IND
  • JEDEC standard 28-pin DIP package
  • PowerCap Module (PCM) package
    • Directly surface-mountable module
    • Replaceable snap-on PowerCap provides lithium backup battery
    • Standardized pinout for all nonvolatile SRAM products
    • Detachment feature on PowerCap allows easy removal using a regular screwdriver
  • Underwriters Laboratories (UL) Recognized
    
   

Key Specifications:

Memory (EPROM, EEPROM, ROM, NV SRAM)
Part Number Memory Type Memory Size Bus Type Real Time Clock DIP w/Int. Batt. Pwr. Cap Pckg. Battery Monitor GPIO VSUPPLY
(V)		 VSUPPLY
(V)		 Budgetary Price
min max See Notes
DS1230AB  NV SRAM 32K x 8 Parallel No Yes Yes No No 4.75 5.25 $8.54 @1k
DS1230Y  4.5 5.5 $8.61 @1k
See All Memory (EPROM, EEPROM, ROM, NV SRAM) (58)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


Diagram

DS1230AB, DS1230Y: Pin Assignment
Pin Assignment

Application Notes

Application Note 170   Adding Nonvolatile SRAM into Embedded Systems
Application Note 202   NV SRAM Frequently Asked Questions
Application Note 1066   Tech. Brief 39: NV SRAM Cross Reference Table
Application Note 3759   Timing Considerations When Using NVSRAM
Application Note 4006   NVSRAM Device Programmers
Application Note 4289   Low-Temperature Data Retention in Nonvolatile SRAM
Application Note 4392   How to Replace a DS1213 SmartSocket with an Equivalent-Density NV SRAM Module
Application Note 4893   Substitution Rules for Nonvolatile Memory Components
Application Note 5013   Lithium Battery Content in Maxim Products

Reliability Reports

Reliability Report: DS1230AB.pdf
Request Reliability Report for:
Underwriters Laboratories (UL) Recognized

Software/Models

none

Ordering Information

Filters: Part Number: Package: Temperature: Tape and Reel Sample
Part Number Notes Free
Sample		 Buy Status Explanations for product status codes Recommended Replacement Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
DS1230AB-100   5% Tolerance, 100ns    N/A No Longer Available DS1230AB-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230AB-100+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230AB-120   5% Tolerance, 120ns    N/A No Longer Available DS1230AB-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230AB-120+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230AB-120IND   5% Tolerance, 120ns    N/A No Longer Available DS1230AB-70IND+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS1230AB-120IND+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230AB-150   5% Tolerance, 150ns    N/A No Longer Available DS1230AB-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230AB-150+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230AB-200   5% Tolerance, 200ns    N/A No Longer Available DS1230AB-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230AB-200+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Notes Free
Sample		 Buy Status Explanations for product status codes Recommended Replacement Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
DS1230AB-200IND   5% Tolerance, 200ns    N/A No Longer Available DS1230AB-70IND+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS1230AB-200IND+      
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230AB-70   5% Tolerance, 70ns    N/A No Longer Available DS1230AB-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230AB-70+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230AB-70IND   5% Tolerance, 70ns    N/A No Longer Available DS1230AB-70IND+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS1230AB-70IND+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230AB-85   5% Tolerance, 85ns    N/A No Longer Available DS1230AB-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230AB-85+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230ABP-100   5% Tolerance, 100ns    N/A No Longer Available DS1230ABP-70+

 		 PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2-4*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230ABP-100+    
Active   PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2+4*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Notes Free
Sample		 Buy Status Explanations for product status codes Recommended Replacement Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
DS1230ABP-70   5% Tolerance, 70ns    N/A No Longer Available DS1230ABP-70+

 		 PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2-4*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230ABP-70+    
Active   PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2+4*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230ABP-70IND   5% Tolerance, 70ns    N/A No Longer Available DS1230ABP-70IND+

 		 PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2-4*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS1230ABP-70IND+    
Active   PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2+4*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230Y-100   10% Tolerance, 100ns    N/A No Longer Available DS1230Y-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230Y-100+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230Y-120   10% Tolerance, 120ns    N/A No Longer Available DS1230Y-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230Y-120+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230Y-120IND   10% Tolerance, 120ns    N/A No Longer Available DS1230Y-70IND+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS1230Y-120IND+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Notes Free
Sample		 Buy Status Explanations for product status codes Recommended Replacement Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
DS1230Y-150   10% Tolerance, 150ns    N/A No Longer Available DS1230Y-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230Y-150+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230Y-200   10% Tolerance, 200ns    N/A No Longer Available DS1230Y-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230Y-200+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230Y-200IND   10% Tolerance, 200ns    N/A No Longer Available DS1230Y-70IND+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS1230Y-200IND+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230Y-70   10% Tolerance, 70ns    N/A No Longer Available DS1230Y-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230Y-70+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230Y-70IND   10% Tolerance, 70ns    N/A No Longer Available DS1230Y-70IND+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS1230Y-70IND+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis
Part Number Notes Free
Sample		 Buy Status Explanations for product status codes Recommended Replacement Package:
TYPE PINS FOOTPRINT
DRAWING  CODE/VAR * 		Temp RoHS/Lead-Free?
Materials Analysis
DS1230Y-85   10% Tolerance, 85ns    N/A No Longer Available DS1230Y-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230Y-85+    
Active   EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28+3*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230Y-FIR       N/A No Longer Available DS1230Y-70+

 		 EDIP;28 pin;629.9 mm²
Outline Drawing:21-0245 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: MDT28-3*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230YL-100       N/A No Longer Available DS1230YP-70+

 		 LPM;

Land Pattern: Not Available

0°C to +70°C See data sheet
DS1230YP-100   10% Tolerance, 100ns    N/A No Longer Available DS1230YP-70+

 		 PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2-4*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230YP-100+    
Active   PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2+4*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230YP-70   10% Tolerance, 70ns    N/A No Longer Available DS1230YP-70+

 		 PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2-4*
0°C to +70°C RoHS/Lead-Free: No
Materials Analysis
DS1230YP-70+    
Active   PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2+4*
0°C to +70°C RoHS/Lead-Free: Lead Free
Materials Analysis
DS1230YP-70IND   10% Tolerance, 70ns    N/A No Longer Available DS1230YP-70IND+

 		 PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2-4*
-40°C to +85°C RoHS/Lead-Free: No
Materials Analysis
DS1230YP-70IND+    
Active   PCAP;34 pin;596.9 mm²
Outline Drawing:21-0246 (PDF)
Land Pattern: Not Available
Use pkgcode/variation: PC2+4*
-40°C to +85°C RoHS/Lead-Free: Lead Free
Materials Analysis

Notes:
  1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
  2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
  3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
  4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

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Document Ref.: 19-5635 Rev 4; 2010-11-23
This page last modified: 2010-11-23

 


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