sandisk SDSM-32-101-01 User guide

SmartMedia™ 32 MByte

Product Manual

®

CORPORATE HEADQUARTERS

140 Caspian Court

Sunnyvale, CA 94089 408-542-0500 FAX: [phone]

URL: http://www.sandisk.com

SanDisk® Corporation general policy does not recommend the use of its products in life support applications where in a failure or malfunction of the product may directly threaten life or injury. Per SanDisk Terms and Conditions of Sale, the user of SanDisk products in life support applications assumes all risk of such use and indemnifies SanDisk against all damages.

The information in this manual is subject to change without notice.

SanDisk Corporation shall not be liable for technical or editorial errors or omissions contained herein; nor for incidental or consequential damages resulting from the furnishing, performance, or use of this material.

All parts of the SanDisk documentation are protected by copyright law and all rights are reserved. This documentation may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to any electronic medium or machine readable form without prior consent, in writing, from SanDisk Corporation.

SanDisk and the SanDisk logo are registered trademarks of SanDisk Corporation. SmartMedia is a trademark of Toshiba Corporation.

Product names mentioned herein are for identification purposes only and may be trademarks and/or registered trademarks of their respective companies.

© 2001 SanDisk Corporation. All rights reserved.

SanDisk products are covered or licensed under one or more of the following U.S. Patent Nos. 5,070,032; 5,095,344; 5,168,465; 5,172,338; 5,198,380; 5,200,959; 5,268,318; 5,268,870; 5,272,669; 5,418,752; 5,602,987. Other U.S. and foreign patents awarded and pending.

Lit. No. 80-36-00169 Rev. 1.1 6/01

Printed in U.S.A.

Revision History

•Revision 1—initial release.

•Revision 1.1—corrected typo on memory cell array; changed from 128K to 64K, page 5.

2	SmartMedia 32 MByte Product Manual Rev. 1.1 © 2001 SANDISK CORPORATION

SmartMedia 32 MByte Product Manual

Table of Contents

1.0	Description..............................................................................................................................		5
	1.1	Features...................................................................................................................................................	5
2.0	Timing Diagrams ..................................................................................................................		12
3.0	Pin Functions ........................................................................................................................		20
	3.1	Pin Descriptions...................................................................................................................................	21
	3.2	Schematic Cell Layout and Address Assignment...........................................................................	22
	3.3	Operation Mode: Logic and Command Tables...............................................................................	23
4.0	Device Operation ..................................................................................................................		25
	4.1	Read Mode (1)......................................................................................................................................	25
	4.2	Read Mode (2)......................................................................................................................................	26
	4.3	Read Mode (3)......................................................................................................................................	27
	4.4	Sequential Read (1) (2) (3) ..................................................................................................................	28
	4.5	Status Read...........................................................................................................................................	28
	4.6	Auto Page Program.............................................................................................................................	30
	4.7	Auto Block Erase .................................................................................................................................	30
	4.8	Reset ......................................................................................................................................................	31
	4.9	ID Read .................................................................................................................................................	32
5.0 Application Notes and Comments ........................................................................................			33
	5.1	Prohibition of Unspecified Commands............................................................................................	33
	5.2	Pointer Control for 00H, 01H and 50H.............................................................................................	33
	5.3	Acceptable Commands After Serial Input Command 80H ...........................................................	34
	5.4	Status Read During a Read Operation .............................................................................................	35
	5.5	Auto-Programming Failure ...............................................................................................................	35
	5.6	R/B : Termination for the Ready/Busy Pin (R/B )........................................................................	36
	5.7	Status After Power-on ........................................................................................................................	36
	5.8	Power-on/off Sequence......................................................................................................................	36
	5.9	Note Regarding the WP Signal.......................................................................................................	37
	5.10	When Four Address Cycles are Input ..............................................................................................	38
	5.11	Several Programming Cycles on the Same Page (Partial Page Program)....................................	39
	5.12	Note Regarding the RE Signal.........................................................................................................	39
	5.13	Invalid Blocks (Bad Blocks)................................................................................................................	40
	5.14	Failure Phenomena for Program and Erase Operations ................................................................	41
	5.15	Bad Block Test Flow............................................................................................................................	42
6.0	Handling Precautions............................................................................................................		43
7.0	Package Dimensions .............................................................................................................		44
	7.1	SmartMedia Card Dimensions ..........................................................................................................	44

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SmartMedia 32 MByte Product Manual
Table of Contents (continued)
Ordering Information and Technical Support................................................................................	45
Ordering Information.....................................................................................................................	47
SmartMedia Card...........................................................................................................................................	47
Technical Support Services............................................................................................................	48
Direct SanDisk Technical Support...............................................................................................................	48
SanDisk Worldwide Web Site ......................................................................................................................	48
SanDisk Worldwide Sales Offices.................................................................................................	51
Limited Warranty...........................................................................................................................	53

4	SmartMedia 32 MByte Product Manual Rev. 1.1 © 2001 SANDISK CORPORATION

SmartMedia 32 MByte Product Manual

1.0 Description

The SanDisk SmartMedia Card (SDSM-32-101-01) is a 3.3-V 256-Mbit (276,824,064) NAND Electrically Erasable and Programmable Read-Only Memory (NAND E2PROM) device, organized as 528 bytes X 32 pages X 2048 blocks. This device has a 528-byte static register which allows program and read data to be transferred between the register and the memory cell array in 528-byte increments. The Erase operation is implemented in a single block unit (16 Kbytes + 512 bytes: 528 bytes X 32 pages).

The SanDisk SmartMedia Card is a serial-type memory device which uses the I/O pins for both address and data input and output as well as for command inputs. The Erase and Program operations are automatically executed making the device ideal for applications such as solid-state file storage, voice recording, image storage for digital cameras and other devices which require high-density non-volatile memory data storage. The data stored in the SmartMedia Card needs to comply with the data format standardized by the SSFDC Forum in order to maintain compatibility with other SmartMediaTM systems.

1.1Features

• Organization
-	Memory cell array		528	× 64K × 8
-	Data Register		528	× 8
-	Page size	528 bytes
-	Block size	(16K + 512) bytes

•Modes

-Read, Reset, Auto Page Program

-Auto Block Erase, Status Read

•Mode control

-Serial Input/Output

-Command control

•Complies with the SmartMedia Electrical Specification and Data Format Specification issued by SSFDC Forum (SmartMedia Card).

•Power Supply— VCC = 3.3 V ± 0.3 V

•Access time

- Cell array to register		10 µs max
-	Serial Read Cycle	50 ns min
• Operating current
- Read (50 ns cycle)		10 mA typ.
-	Program (avg.)	10 mA typ.
-	Erase (avg.)	10 mA typ.
-	Standby	100 µA max

•Package

-SDSM-32-101-01: SmartMedia Card (Weight: 1.8 g. typical)

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SmartMedia 32 MByte Product Manual

SDSM-32-101-01

1

2

3

4

5

6

7

8

9

10

11

Vss

CLE

ALE

WE

WP

I/O1

I/O2

I/O3

I/O4

Vss

Vss

PIN NAMES

I/O1 to 8

I/O Port

Chip Enable

CE

Write Enable

WE

RE

Read Enable

CLE

Command Latch Enable

ALE

Address Latch Enable

Write Protect

WP

Ready/Busy

R/B

OP

Option Pin (GND Input)

LVD

Low Voltage Detect

VCC

Power Supply

VSS

Ground

22

21

20

19

18

17

16

15

14

13

12

VCC

CE

RE

R/B

OP

LVD

I/O8

I/O7

I/O6

I/O5

VCC

Figure 1-1 SDSM-32-101-01 SmartMedia Card Pin Assignments (Top View)

Figure 1-2 Block Diagram

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SmartMedia 32 MByte Product Manual

Table 1-1 Absolute Maximum Ratings

	Symbol	Rating	Value	Unit
	VCC	Power Supply Voltage	−0.6 to 4.6	V
	VIN	Input Voltage	−0.6 to 4.6	V
	VI/O	Input /Output Voltage	0.6 V to VCC + 0.3 V	V
			(≤4.6 V)
	TSOLDER	Soldering Temperature (10s)	-	°C
	TSTG	Storage Temperature	−20 to 65	°C
	TOPR	Operating Temperature	0 to 55	°C

Table 1-2 Capacitance *(Ta = 25°C, f = 1 MHz)

Symbol	Parameter	Condition	Min.	Max.	Unit
CIN	Input	VIN = 0 V		10	pF
COUT	Output	VOUT = 0 V		10	pF

* This parameter is periodically sampled and is not tested for every device.

Table 1-3 Valid Blocks (1)

Symbol	Parameter	MIN	MAX	Unit
NVB	Number of Valid Blocks	2008	2048	Blocks

(1) The SmartMedia Card occasionally contains unusable blocks. Refer to section 5.13.

Table 1-4 Recommended DC Operating Conditions

	Symbol	Parameter	Min.	Typ.	Max.	Unit
	VCC	Power Supply	3.0	3.3	3.6	V
		Voltage
	VIH	High Level Input	2.0		VCC + 0.3	V
		Voltage
	VIL	Low Level Input	−0.3*		0.8	V
		Voltage
*	−2V (pulse width ≤ 20 ns)

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SmartMedia 32 MByte Product Manual

Table 1-5 DC Characteristics

(Ta = 0° to 55° C, VCC = 3.3V ± 0.3V)

Symbol

Parameter

Condition

Min.

Typ.

Max.

Unit

IIL

Input Leakage Current

VIN = 0V to VCC

±10

µA

ILO

Output Leakage Current

VOUT = 0.4V to VCC

±10

µA

Operating Current

= VIL, IOUT = 0 mA,

ICCO1

CE

10

30

mA

(Serial Read)

tcycle = 50 ns

ICCO3

Operating Current

tcycle = 50 ns

10

30

mA

(Command Input)

ICCO4

Operating Current

tcycle = 50 ns

10

30

mA

(Data Input)

ICCO5

Operating Current

tcycle = 50 ns

10

30

mA

(Address Input)

ICCO7

Programming Current

10

30

mA

ICCO8

Erasing Current

10

30

mA

ICCS1

Standby Current

= VIH

1

mA

CE

ICCS2

Standby Current

= VCC − 0.2V

100

µA

CE

VOH

High Level Output Voltage

IOH = −400 µA

2.4

V

VOL

Low Level Output Voltage

IOL = 2.1 mA

0.4

V

VOL = 0.4V

8

mA

IOL (R/B

)

Output current of R/B

pin

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SmartMedia 32 MByte Product Manual

Table 1-6 AC Characteristics and Recommended Operating Conditions (Ta = 0° to 55° C, VCC = 3.3V ± 0.3V)

Symbol

Parameter

Min.

Max.

Unit

Notes

tCLS

CLE Setup Time

0

ns

tCLH

CLE Hold Time

10

ns

tCS

Setup Time

0

ns

CE

tCH

Hold Time

10

ns

CE

tWP

Write Pulse Width

25

ns

tALS

ALE Setup Time

0

ns

tALH

ALE Hold Time

10

ns

tDS

Data Setup Time

20

ns

tDH

Data Hold Time

10

ns

tWC

Write Cycle Time

50

ns

tWH

High Hold Time

15

ns

WE

tWW

High to

Low

100

ns

WP

WE

tRR

Ready to

Falling Edge

20

ns

RE

tRP

Read Pulse Width

35

ns

tRC

Read Cycle Time

50

ns

tREA

Access Time (Serial Data Access)

35

ns

RE

tCEH

High Time for Last Address in Serial Read Cycle

100

ns

(3)

CE

tREAID

Access Time (ID Read)

35

ns

RE

tOH

Data Output Hold Time

10

ns

tRHZ

High to Output High Impedance

30

ns

RE

tCHZ

High to Output High Impedance

20

ns

CE

tREH

High Hold Time

15

ns

RE

tIR

Output High impedance to

Rising Edge

0

ns

RE

tRSTO

Access Time (Status Read)

35

ns

RE

tCSTO

Access Time (Status Read)

45

ns

CE

tRHW

High to

Low

0

ns

RE

WE

tWHC

High to

Low

30

ns

WE

CE

tWHR

High to

Low

30

ns

WE

RE

tAR1

ALE Low to

Low (ID Read)

100

ns

RE

tCR

100

ns

CE

Low to

RE

Low (ID Read)

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9

If the RE to CE delay is less than 30 ns, the device will not re-enter Busy state. AC Test Conditions:

Input level: 2.4V/0.4V Input Comparison Level: 1.5V/1.5V Output Data Comparison Level: 1.5V/1.5V

Output Load: 1 TTL + CL (100 pF)

Figure 1-3

SmartMedia 32 MByte Product Manual

Table 1-6 AC Characteristics and Recommended Operating Conditions (continued)

Symbol

Parameter

Min.

Max.

Unit

Notes

tR

Memory Cell Array to Starting Address

10

µs

tWB

High to Busy

200

ns

WE

tAR2

ALE Low to

Low (Read Cycle)

50

ns

RE

Last Clock Rising Edge to Busy

tRB

RE

200

ns

(in Sequential Read)

High to Ready

600 +

tCRY

CE

ns

(2)

(When interrupted by CE in Read Mode)

tr (R/B)

tRST

Device Reset Time (Read/Program/Erase)

6/10/500

µs

Notes: (1) Transition time (tT) = 5 ns.

(2)CE High to Ready time depends on the pull-up resistor tied to the R/B pin. (Refer to section 5.6.)

(3)If the delay between RE and CE is less than 200 ns and tCEH is greater than or equal to 100 ns, reading will stop.

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SmartMedia 32 MByte Product Manual

Table 1-7 Programming and Erasing Characteristics (Ta = 0° to 55° C, VCC = 3.3V ± 0.3V)

Symbol	Parameter	Min.	Typ.	Max.	Unit	Notes
tPROG	Average Programming Time		200	1000	µs
N	Number of Programming Cycles on			10		(1)
	Same Page
tBERASE	Block Erasing Time		3	20	ms
P/E	Number of Program/Erase Cycles			300,000		(2)

Notes: (1) Refer to section 5.11.

(2) Refer to section 5.14.

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SmartMedia 32 MByte Product Manual

2.0 Timing Diagrams

Figure 2-1 Latch Timing Diagram for Command/Address/Data

Figure 2-2 Command Input Cycle Timing Diagram

12	SmartMedia 32 MByte Product Manual Rev. 1.1 © 2001 SANDISK CORPORATION

SmartMedia 32 MByte Product Manual

Figure 2-3 Address Input Cycle Timing Diagram

Figure 2-4 Data Input Cycle Timing Diagram

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SmartMedia 32 MByte Product Manual

Figure 2-5 Serial Read Cycle Timing Diagram

Figure 2-6 Status Read Cycle Timing Diagram

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SmartMedia 32 MByte Product Manual

Figure 2-7 Read Cycle (1) Timing Diagram

Figure 2-8 Read Cycle (1) Timing Diagram When Interrupted by CE

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SmartMedia 32 MByte Product Manual

CLE

CE

WE

ALE

RE

I/O1 to 8

R/B

CLE

CE

WE

ALE

RE

I/O1 to 8

R/B

tCLS tCLH

tCS tCH

tALS		tR
	tWB	tAR 2
tALH
tALH		tRC

	tDS tDH	tDS tDH				tREA
					tRR
	01H	A0 to	A9 to	A17 to		DOUT	DOUT
					DOUT
		A7	A16	A24
		Column address			256 + N	256 + N + 1	527
		N
							: VIH or VIL

Figure 2-9 Read Cycle (2) Timing Diagram

tCLH

tCLS

tCS tCH

tALS		tR
	tWB	tAR 2
tALH
tALH		tRC

	tDS tDH	tDS tDH				tREA
					tRR
	50H	A0 to	A9 to	A17 to		DOUT	DOUT
					DOUT
		A7	A16	A24
		Column address			512 + N	512 + N + 1	527
		N
							: VIH or VIL

Figure 2-10 Read Cycle (3) Timing Diagram

16	SmartMedia 32 MByte Product Manual Rev. 1.1 © 2001 SANDISK CORPORATION

SmartMedia 32 MByte Product Manual

Figure 2-11 Sequential Read (1) Timing Diagram

Figure 2-12 Sequential Read (2) Timing Diagram

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