93LC56B-I/SM Microchip Technology, 93LC56B-I/SM Datasheet

93LC56B-I/SM

Manufacturer Part Number

93LC56B-I/SM

Description

2K 2.5V Microwave Serial EEPROM

Manufacturer

Microchip Technology

Datasheet

1.93LC56B-ISM.pdf (28 pages)

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Device Selection Table

Features:

• Low-power CMOS technology

• ORG pin to select word size for ‘56C’ version

• 256 x 8-bit organization ‘A’ ver. devices (no ORG)

• 128 x 16-bit organization ‘B’ ver. devices (no

• Self-timed erase/write cycles (including

• Automatic ERAL before WRAL

• Power-on/off data protection circuitry

• Industry standard 3-wire serial I/O

• Device Status signal (Ready/Busy)

• Sequential read function

• 1,000,000 E/W cycles

• Data retention > 200 years

• Pb-free and RoHS compliant

• Temperature ranges supported:

Pin Function Table

93AA56A

93AA56B

93LC56A

93LC56B

93C56A

93C56B

93AA56C

93LC56C

93C56C

CLK

ORG

ORG)

auto-erase)

Part Number

- Industrial (I)

- Automotive (E)

Name

Chip Select

Serial Data Clock

Serial Data Input

Serial Data Output

Ground

No internal connection

Memory Configuration

Power Supply

2K Microwire Compatible Serial EEPROM

1.8-5-5

1.8-5.5

2.5-5.5

4.5-5.5

1.8-5.5

2.5-5.5

4.5-5.5

Range

-40°C to +85°C

-40°C to +125°C

Function

ORG Pin

Yes

93AA56A/B/C, 93LC56A/B/C,

Word Size

8 or 16-bit

16-bit

8-bit

Description:

The Microchip Technology Inc. 93XX56A/B/C devices

are 2K bit low-voltage serial Electrically Erasable

PROMs (EEPROM). Word-selectable devices such as

the 93AA56C, 93LC56C or 93C56C are dependent

upon external logic levels driving the ORG pin to set

word size. For dedicated 8-bit communication, the

93XX56A devices are available, while the 93XX56B

devices provide dedicated 16-bit communication.

Advanced CMOS technology makes these devices

ideal for low-power, nonvolatile memory applications.

The entire 93XX Series is available in standard

packages including 8-lead PDIP and SOIC, and

advanced packaging including 8-lead MSOP, 6-lead

SOT-23, 8-lead 2x3 DFN and 8-lead TSSOP. All

packages are Pb-free and RoHS compliant.

Temp Ranges

I, E

P, SN, ST, MS, OT, MC

P, SN, ST, MS, MC

93C56A/B/C

Packages

DS21794E-page 1

Related parts for 93LC56B-I/SM

93LC56B-I/SM Summary of contents

Page 1

... Microwire Compatible Serial EEPROM Device Selection Table Part Number V Range CC 93AA56A 1.8-5.5 93AA56B 1.8-5-5 93LC56A 2.5-5.5 93LC56B 2.5-5.5 93C56A 4.5-5.5 93C56B 4.5-5.5 93AA56C 1.8-5.5 93LC56C 2.5-5.5 93C56C 4.5-5.5 Features: • Low-power CMOS technology • ORG pin to select word size for ‘56C’ version • 256 x 8-bit organization ‘A’ ver. devices (no ORG) • ...

Page 2

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... Note 1: This parameter is periodically sampled and not 100% tested. 2: ORG pin not available on ‘A’ or ‘B’ versions. 3: Ready/Busy status must be cleared from DO, see Section 3.4 "Data Out (DO)". © 2007 Microchip Technology Inc. Industrial (I -40°C to +85° Automotive (E -40°C to +125°C, V ...

Page 4

... Erase/Write mode (AA and LC versions) — Erase/Write mode (93C versions) ERAL mode, 4.5V ≤ V — WRAL mode, 4.5V ≤ V — — cycles 25°C, V © 2007 Microchip Technology Inc. = +1.8V +5. +2.5V +5. Conditions < 5.5V, 93XX56C only CC < 5.5V CC < 2.5V CC < 5.5V, 93XX56C only CC < 5.5V CC < 2.5V CC < ...

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... ERASE or WRITE instruction can be executed. Block Diagram Address Memory Array Decoder Address Counter Data Register DI Mode Decode ORG* Logic CS Clock CLK Register *ORG input is not available on A/B devices © 2007 Microchip Technology Inc. is below CC DO Output Buffer ...

Page 7

... High-Z DO © 2007 Microchip Technology Inc. The DO pin indicates the Ready/Busy status of the device brought high after a minimum of 250 ns low ( logical ‘0’ indicates that programming CSL is still in progress logical ‘1’ indicates that the register at the specified address has been erased and the device is ready for another instruction ...

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... High-Z DO © 2007 Microchip Technology Inc. Once the EWEN instruction is executed, programming remains enabled until an EWDS instruction is executed or Vcc is removed from the device. To protect against accidental data disturbance, the EWDS instruction can be used to disable all erase/write functions and should follow all programming opera- tions ...

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... CS CLK High-Z DO © 2007 Microchip Technology Inc. The DO pin indicates the Ready/Busy status of the device brought high after a minimum of 250 ns low (T ). CSL Note: After the Write All cycle is complete, issuing a Start bit and then taking CS low will clear the Ready/Busy status from DO. ...

Page 12

... V organization is selected. For proper operation, ORG must be tied to a valid logic level. 93XX56A devices are always x8 organization and 93XX56B devices are always x16 organization. Function after the PD ) CSL or Logic HI, the CC or Logic LO, the (x8) memory SS © 2007 Microchip Technology Inc. ...

Page 13

... XXXXXXXT XXXXYYWW NNN 8-Lead TSSOP XXXX TYWW NNN 8-Lead 2x3 DFN XXX YWW NN © 2007 Microchip Technology Inc. Example: 3L56BI 5281L7 Example: 2EL7 Example: 93LC56B e I/P 3 1L7 0528 Example: 93LC56BI e SN 0528 3 1L7 Example: L56B I528 1L7 Example: 344 528 L7 DS21794E-page 13 ...

Page 14

... Part Number TSSOP MSOP 93AA56A A56A 3A56AT 93AA56B A56B 3A56BT 93AA56C A56C 3A56CT 93LC56A L56A 3L56AT 93LC56B L56B 3L56BT 93LC56C L56C 3L56CT 93C56A C56A 3C56AT 93C56B C56B 3C56BT 93C56C C56C 3C56CT Note Temperature grade ( Alphanumeric traceability code Legend: XX ...

Page 15

... Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side. 3. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. REF: Reference Dimension, usually without tolerance, for information purposes only. © 2007 Microchip Technology Inc ...

Page 16

... A2 Units MILLIMETERS Dimension Limits MIN 0.90 A2 0.89 A1 0.00 E 2.20 E1 1.30 D 2.70 L 0.10 L1 0.35 φ 0° c 0.08 b 0.20 φ NOM MAX 6 0.95 BSC 1.90 BSC – 1.45 – 1.30 – 0.15 – 3.20 – 1.80 – 3.10 – 0.60 – 0.80 – 30° – 0.26 – 0.51 Microchip Technology Drawing C04-028B © 2007 Microchip Technology Inc. ...

Page 17

... Significant Characteristic. 3. Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010" per side. 4. Dimensioning and tolerancing per ASME Y14.5M. BSC: Basic Dimension. Theoretically exact value shown without tolerances. © 2007 Microchip Technology Inc ...

Page 18

... D h 0.25 L 0.40 L1 φ 0° c 0.17 b 0.31 α 5° β 5° α c β NOM MAX 8 1.27 BSC – 1.75 – – – 0.25 6.00 BSC 3.90 BSC 4.90 BSC – 0.50 – 1.27 1.04 REF – 8° – 0.25 – 0.51 – 15° – 15° Microchip Technology Drawing C04-057B © 2007 Microchip Technology Inc. ...

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... EXPOSED PAD BOTTOM VIEW A NOTE 2 A1 Units MILLIMETERS Dimension Limits MIN NOM N e 0.50 BSC A 0.80 0.90 A1 0.00 0.02 A3 0.20 REF D 2.00 BSC E 3.00 BSC D2 1.30 E2 1.50 b 0.18 0.25 L 0.30 0. NOTE MAX 8 1.00 0.05 – 1.75 – 1.90 0.30 0.50 – – Microchip Technology Drawing C04-123B © 2007 Microchip Technology Inc. ...

Page 21

... APPENDIX A: REVISION HISTORY Revision B Corrections to Section 1.0, Electrical Characteristics. Section 4.1, 6-Lead SOT-23 package to OT. Revision C Added DFN package. Revision D (11/2006) Updated Package Drawings and Product ID System Revision E (3/2007) Replaced Package Drawings; Revised Product ID System (SOIC-SN package). © 2007 Microchip Technology Inc. DS21794E-page 21 ...

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... To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions. © 2007 Microchip Technology Inc. CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • Distributor or Representative • ...

Page 24

... What deletions from the document could be made without affecting the overall usefulness there any incorrect or misleading information (what and where)? 7. How would you improve this document? DS21794E-page 24 Total Pages Sent ________ FAX: (______) _________ - _________ N Literature Number: DS21794E © 2007 Microchip Technology Inc. ...

Page 25

... Temperature Range Device: 93AA56A: 2K 1.8V Microwire Serial EEPROM 93AA56B: 2K 1.8V Microwire Serial EEPROM 93AA56C: 2K 1.8V Microwire Serial EEPROM w/ORG 93LC56A: 2K 2.5V Microwire Serial EEPROM 93LC56B: 2K 2.5V Microwire Serial EEPROM 93LC56C: 2K 2.5V Microwire Serial EEPROM w/ORG 93C56A: 2K 5.0V Microwire Serial EEPROM 93C56B: 2K 5.0V Microwire Serial EEPROM 93C56C: 2K 5.0V Microwire Serial EEPROM w/ORG ...

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... Select Mode, Smart Serial, SmartTel, Total Endurance, UNI/O, WiperLock and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2007, Microchip Technology Incorporated, Printed in the U ...

Page 28

... Taiwan - Kaohsiung Tel: 886-7-536-4818 Fax: 886-7-536-4803 Taiwan - Taipei Tel: 886-2-2500-6610 Fax: 886-2-2508-0102 Thailand - Bangkok Tel: 66-2-694-1351 Fax: 66-2-694-1350 © 2007 Microchip Technology Inc. EUROPE Austria - Wels Tel: 43-7242-2244-39 Fax: 43-7242-2244-393 Denmark - Copenhagen Tel: 45-4450-2828 Fax: 45-4485-2829 France - Paris ...

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