25C320/SN Microchip Technology, 25C320/SN Datasheet

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25C320/SN

Manufacturer Part Number
25C320/SN
Description
IC EEPROM 32KBIT 3MHZ 8SOIC
Manufacturer
Microchip Technology
Datasheets

Specifications of 25C320/SN

Memory Size
32K (4K x 8)
Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Speed
3MHz
Interface
SPI, 3-Wire Serial
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
8-SOIC (3.9mm Width)
Memory Configuration
4K X 8
Ic Interface Type
SPI
Clock Frequency
3MHz
Supply Voltage Range
4.5V To 5.5V
Memory Case Style
SOIC
No. Of Pins
8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
25C320/SN
Manufacturer:
MCP
Quantity:
1 636
Part Number:
25C320/SN
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
25C320/SN
Manufacturer:
MICROCHIP
Quantity:
1 920
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.
© 2008 Microchip Technology Inc.
25AA320
25LC320
- Write current: 3 mA maximum
- Read current: 500 μA, 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
Max. Clock
Frequency
32K SPI Bus Serial EEPROM
1 MHz
2 MHz
3 MHz
V
HOLD
SCK
SI
CC
25AA320/25LC320/25C320
HOLD
Ranges
Temp.
V
SO
CS
CC
I,E
I,E
I
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
Not recommended for new designs –
Please use 25AA320A or 25LC320A.
STATUS
Register
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
DS21227F-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 25C320/SN

25C320/SN Summary of contents

Page 1

... Microchip Technology Inc. Not recommended for new designs – Please use 25AA320A or 25LC320A. 25AA320/25LC320/25C320 Description: Temp. The Microchip Technology Inc. 25AA320/25LC320/ Ranges 25C320 (25XX320 Erasable PROMs. The memory is accessed via a I simple Serial Peripheral Interface (SPI) compatible I,E serial bus ...

Page 2

... CC Conditions ≥ 2.7V (Note) < 2.7V (Note) ≥ 2.7V (Note) < 2.7V (Note) = 1.0 mA, V < 2. -400 μ OUT 5.0V (Note) = 5.5V 3.0 MHz; CLK = 2.5V 2.0 MHz; CLK = 5.5V = 2.5V = 5.5V, Inputs tied 2.5V, Inputs tied © 2008 Microchip Technology Inc. ...

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. © 2008 Microchip Technology Inc. 25AA320/25LC320/25C320 Industrial (I -40° ...

Page 4

... SERIAL INPUT TIMING CS 2 Mode 1,1 Mode 0,0 SCK MSB in High-Impedance SO FIGURE 1-3: SERIAL OUTPUT TIMING SCK 13 MSB out SO SI DS21227F-page High-Impedance n Don’t Care Don’t Care LSB in 3 Mode 1,1 Mode 0,0 15 ISB out © 2008 Microchip Technology Inc. ...

Page 5

... TABLE 1-3: AC TEST CONDITIONS AC Waveform 0. 0. 4.0V HI Timing Measurement Reference Level Input Output ≤ 4.0V Note 1: For For V > 4.0V CC © 2008 Microchip Technology Inc. 25AA320/25LC320/25C320 FIGURE 1-4: — (Note 1) (Note TEST CIRCUIT V CC 2.25 KΩ 100 pF 1.8 KΩ DS21227F-page 5 ...

Page 6

... Lowering the HOLD line at any time will tri-state the SO line. Description Chip Select Input Serial Data Output Not Connected Write-Protect Pin Ground Serial Data Input Serial Clock Input Not Connected Hold Input Supply Voltage © 2008 Microchip Technology Inc. ...

Page 7

... WREN 0000 0110 RDSR 0000 0101 WRSR 0000 0001 © 2008 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

... BYTE WRITE SEQUENCE SCK Instruction High-Impedance SO FIGURE 3-3: PAGE WRITE SEQUENCE SCK Instruction SCK Data Byte DS21227F-page 16-bit Address 16-bit Address 16-bit Address Data Byte Data Out Twc Data Byte Data Byte Data Byte n (32 max © 2008 Microchip Technology Inc. ...

Page 9

... SI SO FIGURE 3-5: WRITE DISABLE SEQUENCE CS SCK SI SO © 2008 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

... These bits WEL WIP are set by the user issuing the WRSR instruction. These bits are nonvolatile. See Figure 3-6 for the RDSR timing sequence. 0 ’, no write Data from STATUS Register ’, the latch 0 ’, the latch © 2008 Microchip Technology Inc. ...

Page 11

... SCK Instruction © 2008 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: ...

Page 12

... The device is in low-power Standby mode ( • The write enable latch is reset • high-impedance state • A low level required to enter active state . Protected Blocks Unprotected Blocks Protected 0 Protected 1 Protected 1 Protected 1 STATUS Register Protected Protected Writable Writable Writable Protected Writable Writable © 2008 Microchip Technology Inc. ...

Page 13

... Standard marking consists of Microchip part number, year code, week code, and traceability code. For device markings beyond this, certain price adders apply. Please check with your Microchip Sales Office. For QTP devices, any special marking adders are included in QTP price. © 2008 Microchip Technology Inc. 25AA320/25LC320/25C320 Example: ...

Page 14

... DS21227F-page 14 PLO %RG\ >3',3@ © 2008 Microchip Technology Inc. ...

Page 15

... Microchip Technology Inc. 25AA320/25LC320/25C320 PP %RG\ >62,&@ α φ β DS21227F-page 15 ...

Page 16

... DS21227F-page 16 PP %RG\ >62,&@ © 2008 Microchip Technology Inc. ...

Page 17

... Microchip Technology Inc. 25AA320/25LC320/25C320 PP %RG\ >76623@ I φ DS21227F-page 17 ...

Page 18

... DS21227F-page 18 PP %RG\ >76623@ I © 2008 Microchip Technology Inc. φ ...

Page 19

... APPENDIX A: REVISION HISTORY Revision D Corrections to Section 1.0, Electrical Characteristics. Revision E Revise Endurance from 100K to 1M. Revision F (June 2008) Added “Not Recommended” note; Updated Packaging; General updates. © 2008 Microchip Technology Inc. 25AA320/25LC320/25C320 DS21227F-page 19 ...

Page 20

... NOTES: DS21227F-page 20 © 2008 Microchip Technology Inc. ...

Page 21

... To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions. © 2008 Microchip Technology Inc. 25AA320/25LC320/25C320 CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • ...

Page 22

... 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? DS21227F-page 22 Total Pages Sent ________ FAX: (______) _________ - _________ N Literature Number: DS21227F © 2008 Microchip Technology Inc. ...

Page 23

... Plastic DIP (300 mil body), 8-lead SN = Plastic SOIC (150 mil body), 8-lead ST = Plastic TSSOP (4.4 mm body), 8-lead ST14 = Plastic TSSOP (4.4 mm body), 14-lead © 2008 Microchip Technology Inc. 25AA320/25LC320/25C320 XXX Examples: a) 25LC320-I/SN: Industrial Temp., Pattern SOIC package b) 25LC320T-I/SN: Tape and Reel, Industrial Temp., SOIC package c) 25LC320-E/SN: Extended Temp ...

Page 24

... NOTES: DS21227F-page 24 © 2008 Microchip Technology Inc. ...

Page 25

... PowerMate, PowerTool, REAL ICE, rfLAB, Select Mode, 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. ...

Page 26

... Fax: 886-3-572-6459 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 © 2008 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 Tel: 33-1-69-53-63-20 ...

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