25LC320-I/SN Microchip Technology, 25LC320-I/SN Datasheet

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25LC320-I/SN

Manufacturer Part Number
25LC320-I/SN
Description
IC EEPROM 32KBIT 2MHZ 8SOIC
Manufacturer
Microchip Technology
Datasheets

Specifications of 25LC320-I/SN

Memory Size
32K (4K x 8)
Package / Case
8-SOIC (3.9mm Width)
Operating Temperature
-40°C ~ 85°C
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Speed
2MHz
Interface
SPI, 3-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Organization
4 K x 8
Interface Type
SPI
Maximum Clock Frequency
2 MHz
Access Time
230 ns
Supply Voltage (max)
5.5 V
Supply Voltage (min)
2.5 V
Maximum Operating Current
5 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
2.5 V, 5.5 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
25LC320-I/SN
Manufacturer:
MCP
Quantity:
32 150
Part Number:
25LC320-I/SN
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
25LC320-I/SN
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
25LC320-I/SN-G
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
Part Number:
25LC320-I/SN-G-PW819T
Manufacturer:
MICROCHI
Quantity:
20 000
Device Selection Table
Features:
• Low-power CMOS technology:
• 4096 x 8 bit organization
• 32 byte page
• Write cycle time: 5 ms maximum
• Self-timed erase and write cycles
• Block write protection:
• Built-in write protection:
• Sequential read
• High reliability:
• 8-pin PDIP, SOIC and TSSOP packages
• 14-lead TSSOP package
• Temperature ranges supported:
Package Types
*25XX320 is used in this document as a generic part number for the 25AA320/25LC320/25C320 devices.
 2004 Microchip Technology Inc.
25AA320
25LC320
- Write current: 3 mA maximum
- Read current: 500 A typical
- Standby current: 500 nA typical
- Protect none, 1/4, 1/2 or all of array
- Power on/off data protection circuitry
- Write enable latch
- Write-protect pin
- Endurance: 1M E/W cycles
- Data retention: > 200 years
- ESD protection: > 4000V
- Industrial (I):
- Automotive (E):
Number
25C320
Part
V
WP
SO
CS
SS
1
2
3
4
1.8-5.5V
2.5-5.5V
4.5-5.5V
Range
PDIP, SOIC
V
CC
-40 C to +85 C
-40°C to +125°C
8
7
6
5
32K SPI
Max. Clock
Frequency
1 MHz
2 MHz
3 MHz
V
HOLD
SCK
SI
CC
25AA320/25LC320/25C320
HOLD
Ranges
V
Temp.
CS
SO
CC
I,E
I,E
I
Bus Serial EEPROM
1
2
3
4
TSSOP
8
7
6
5
Description:
The Microchip Technology Inc. 25AA320/25LC320/
25C320 (25XX320
Erasable PROMs. The memory is accessed via a
simple Serial Peripheral Interface (SPI™) compatible
serial bus. The bus signals required are a clock input
(SCK) plus separate data in (SI) and data out (SO)
lines. Access to the device is controlled through a Chip
Select (CS) input.
Communication to the device can be paused via the
hold pin (HOLD). While the device is paused,
transitions on its inputs will be ignored, with the
exception of Chip Select, allowing the host to service
higher priority interrupts.
Block Diagram
HOLD
SCK
SCK
SI
V
WP
WP
SO
CS
SS
SI
I/O Control
Register
Status
Logic
*
) are 32 Kbit serial Electrically
V
V
WP
V
SO
NC
NC
NC
CS
SS
CC
SS
Memory
Control
Logic
1
2
3
4
5
6
7
TSSOP
XDEC
14
13
12
11
10
9
8
DS21227E-page 1
Y Decoder
Sense Amp.
R/W Control
V
HOLD
NC
NC
NC
SCK
SI
HV Generator
CC
EEPROM
Latches
Array
Page

Related parts for 25LC320-I/SN

25LC320-I/SN Summary of contents

Page 1

... HOLD SCK *25XX320 is used in this document as a generic part number for the 25AA320/25LC320/25C320 devices.  2004 Microchip Technology Inc. 25AA320/25LC320/25C320 ™ Bus Serial EEPROM Description: The Microchip Technology Inc. 25AA320/25LC320/ Temp. 25C320 (25XX320 Ranges Erasable PROMs. The memory is accessed via a I simple Serial Peripheral Interface (SPI™ ...

Page 2

... ELECTRICAL CHARACTERISTICS (†) Absolute Maximum Ratings V .............................................................................................................................................................................7.0V CC All inputs and outputs w.r.t. V ........................................................................................................ -0. Storage temperature .................................................................................................................................-65°C to 150°C Ambient temperature under bias ...............................................................................................................-40°C to 125°C ESD protection on all pins ..........................................................................................................................................4 kV † NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device ...

Page 3

... Note 1: This parameter is periodically sampled and not 100% tested. 2: This parameter is not tested but established by characterization. For endurance estimates in a specific application, please consult the Total Endurance™ Model which can be obtained from Microchip’s web site at: www.microchip.com.  2004 Microchip Technology Inc. 25AA320/25LC320/25C320 Industrial (I -40°C to +85°C ...

Page 4

... FIGURE 1-1: HOLD TIMING CS SCK SO n+2 n+1 n+2 n+1 SI HOLD FIGURE 1-2: SERIAL INPUT TIMING CS 2 Mode 1,1 Mode 0,0 SCK MSB in SO FIGURE 1-3: SERIAL OUTPUT TIMING SCK 13 MSB out SO SI DS21227E-page High-impedance n don’t care High-impedance 14 don’t care ...

Page 5

... TABLE 1-3: AC TEST CONDITIONS AC Waveform 0. 0. 4.0V HI Timing Measurement Reference Level Input Output Note 1: For V 4. For V > 4.0V CC  2004 Microchip Technology Inc. 25AA320/25LC320/25C320 FIGURE 1-4: — (Note 1) (Note TEST CIRCUIT V CC 2.25 K 100 pF 1.8 K DS21227E-page 5 ...

Page 6

... PIN DESCRIPTIONS The descriptions of the pins are listed in Table 2-1. TABLE 2-1: PIN FUNCTION TABLE Name PDIP SOIC — — Vss SCK 6 NC — — HOLD 7 Vcc 8 2.1 Chip Select (CS) A low level on this pin selects the device. A high level deselects the device and forces it into Standby mode ...

Page 7

... RDSR 0000 0101 WRSR 0000 0001  2004 Microchip Technology Inc. 25AA320/25LC320/25C320 3.3 Write Sequence Prior to any attempt to write data to the 25XX320, the write enable latch must be set by issuing the WREN instruction (Figure 3-4). This is done by setting CS low and then clocking out the proper instruction into the 25XX320 ...

Page 8

... FIGURE 3-1: READ SEQUENCE SCK instruction High-impedance SO FIGURE 3-2: BYTE WRITE SEQUENCE SCK instruction High-impedance SO FIGURE 3-3: PAGE WRITE SEQUENCE SCK instruction SCK data byte DS21227E-page 16-bit address 16-bit address 16-bit address data byte data out Twc data byte data byte 1 ...

Page 9

... FIGURE 3-5: WRITE DISABLE SEQUENCE CS SCK SI SO  2004 Microchip Technology Inc. 25AA320/25LC320/25C320 The following is a list of conditions under which the write enable latch will be reset: • Power-up See • WRDI instruction successfully executed • WRSR instruction successfully executed • WRITE instruction successfully executed ...

Page 10

... Read Status Register Instruction (RDSR) The Read Status Register instruction (RDSR) provides access to the Status register. The Status register may be read at any time, even during a write cycle. The Status register is formatted as follows WPEN BP1 BP0 The Write-In-Process (WIP) bit indicates whether the 25XX320 is busy with a write operation. When set to a ‘ ...

Page 11

...  2004 Microchip Technology Inc. 25AA320/25LC320/25C320 When the chip is hardware write-protected, only writes to nonvolatile bits in the Status register are disabled. See Table 3-3 for a matrix of functionality on the WPEN bit. See Figure 3-7 for the WRSR timing sequence. TABLE 3-2: BP1 ...

Page 12

... Data Protection The following protection has been implemented to prevent inadvertent writes to the array: • The write enable latch is reset on power-up • A WRITE ENABLE instruction must be issued to set the write enable latch • After a byte write, page write or Status register write, the write enable latch is reset • ...

Page 13

... Please check with your Microchip Sales Office. For QTP devices, any special marking adders are included in QTP price.  2004 Microchip Technology Inc. 25AA320/25LC320/25C320 Example: 25LC320 /PNNN YYWW Example: 25LC320 I/SNYYWW NNN Example: Example: 5LBX IYWW NNN 25L32 ...

Page 14

... Plastic Dual In-line (P) – 300 mil (PDIP Dimension Limits Number of Pins Pitch Top to Seating Plane Molded Package Thickness Base to Seating Plane Shoulder to Shoulder Width Molded Package Width Overall Length Tip to Seating Plane Lead Thickness Upper Lead Width Lower Lead Width ...

Page 15

... Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .010” (0.254mm) per side. JEDEC Equivalent: MS-012 Drawing No. C04-057  2004 Microchip Technology Inc. 25AA320/25LC320/25C320 Units ...

Page 16

... Plastic Thin Shrink Small Outline (ST) – 4.4 mm (TSSOP Dimension Limits Number of Pins Pitch Overall Height Molded Package Thickness Standoff § Overall Width Molded Package Width Molded Package Length Foot Length Foot Angle Lead Thickness Lead Width Mold Draft Angle Top ...

Page 17

... Mold Draft Angle Bottom * Controlling Parameter § Significant Characteristic Notes: Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed .005” (0.127mm) per side. JEDEC Equivalent: MO-153 Drawing No. C04-087  2004 Microchip Technology Inc. 25AA320/25LC320/25C320 Units INCHES ...

Page 18

... APPENDIX A: REVISION HISTORY Revision D Corrections to Section 1.0, Electrical Characteristics. Revision E Revise Endurance from 100K to 1M. DS21227E-page 18  2004 Microchip Technology Inc. ...

Page 19

... Conferences for products, Development Systems, technical information and more • Listing of seminars and events  2004 Microchip Technology Inc. 25AA320/25LC320/25C320 SYSTEMS INFORMATION AND UPGRADE HOT LINE The Systems Information and Upgrade Line provides system users a listing of the latest versions of all of Microchip's development systems software products ...

Page 20

... Telephone: (_______) _________ - _________ Application (optional): Would you like a reply? Y Device: 25AA320/25LC320/25C320 Questions: 1. What are the best features of this document? 2. How does this document meet your hardware and software development needs you find the organization of this document easy to follow? If not, why? 4 ...

Page 21

... Please specify which device, revision of silicon and Data Sheet (include Literature #) you are using. New Customer Notification System Register on our web site (www.microchip.com/cn) to receive the most current information on our products.  2004 Microchip Technology Inc. 25AA320/25LC320/25C320 Examples: a) 25LC320-I/SN: Industrial Temp., SOIC package b) 25LC320T-I/SN: Tape and Reel, Industrial Temp., SOIC package c) 25LC320-E/SN: Extended Temp., ...

Page 22

... NOTES: DS21227E-page 22  2004 Microchip Technology Inc. ...

Page 23

... PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance 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. ...

Page 24

... Via Salvatore Quasimodo, 12 20025 Legnano (MI) Milan, Italy Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands Waegenburghtplein 4 NL-5152 JR, Drunen, Netherlands Tel: 31-416-690399 Fax: 31-416-690340 United Kingdom 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44-118-921-5869 Fax: 44-118-921-5820 07/12/04  2004 Microchip Technology Inc. ...

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