25LC320AX-E/ST Microchip Technology, 25LC320AX-E/ST Datasheet

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25LC320AX-E/ST

Manufacturer Part Number
25LC320AX-E/ST
Description
32K, 4K X 8, 2.5V SER EE EXT, ROTATED PINOUT 8 TSSOP 4.4mm TUBE
Manufacturer
Microchip Technology
Datasheets

Specifications of 25LC320AX-E/ST

Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
32K (4K x 8)
Speed
10MHz
Interface
SPI, 3-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Package / Case
8-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Device Selection Table
Features:
• Max. Clock 10 MHz
• Low-Power CMOS Technology
• 4096 x 8-bit Organization
• 32-Byte Page
• Self-Timed Erase and Write Cycles (5 ms max.)
• Block Write Protection
• Built-in Write Protection
• Sequential Read
• High Reliability
• Temperature Ranges Supported;
• Pb-Free and RoHS Compliant
© 2009 Microchip Technology Inc.
- Max. Write Current: 5 mA at 5.5V, 10 MHz
- Read Current: 5 mA at 5.5V, 10 MHz
- Standby Current: 5 μA at 5.5V
- Protect none, 1/4, 1/2 or all of array
- Power-on/off data protection circuitry
- Write enable latch
- Write-protect pin
- Endurance: >1M erase/write cycles
- Data retention: > 200 years
- ESD protection: > 4000V
- Industrial (I):
- Automotive (E):
Part Number
25LC320A
25AA320A
V
CC
2.5-5.5V
1.8-5.5V
32K SPI Bus Serial EEPROM
Range
-40°C to +85°C
-40°C to +125°C
25AA320A/25LC320A
Page Size
32 Byte
32 Byte
Description:
The Microchip Technology Inc. 25AA320A/25LC320A
(25XX320A
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 sep-
arate 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, transi-
tions on its inputs will be ignored, with the exception of
Chip Select, allowing the host to service higher priority
interrupts.
The 25XX320A is available in standard packages
including 8-lead PDIP and SOIC, and advanced
packaging including 8-lead MSOP, TSSOP and 2x3
TDFN.
Package Types (not to scale)
*25XX320A is used in this document as a generic part number
for the 25AA320A, 25LC320A devices.
HOLD
V
WP
CS
SO
Temp. Ranges
SS
V
X-Rotated TSSOP
CS
SO
CC
TSSOP/MSOP
1
2
3
4
1
2
3
4
(ST, MS)
I,E
I
(X/ST)
*
) are 32 kbit Serial Electrically Erasable
8
7
6
5
8
7
6
5
V
HOLD
SCK
SI
CC
SCK
SI
V
WP
SS
P, SN, ST, MS, MNY
P, SN, ST, MS, MNY
V
WP
CS
SO
SS
V
WP
CS
SO
SS
Packages
1
2
3
4
PDIP/SOIC
1
2
3
4
TDFN
(MNY)
DS21828F-page 1
(P, SN)
8
7
6
5
8
7
6
5
V
HOLD
SCK
SI
V
HOLD
SCK
SI
CC
CC

Related parts for 25LC320AX-E/ST

25LC320AX-E/ST Summary of contents

Page 1

... Page Size Temp. Ranges 32 Byte I,E 32 Byte I Description: The Microchip Technology Inc. 25AA320A/25LC320A * (25XX320A ) are 32 kbit Serial Electrically 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 sep- arate data in (SI) and data out (SO) lines ...

Page 2

... 2.5V to 5.5V CC Test Conditions ≥ 2.7V < 2. 1.0 mA, V < 2. -400 μ OUT 5.0V (Note) = 5.5V 10.0 MHz; CLK = 2.5V 5.0 MHz; CLK = 5.5V = 2.5V = 5.5V, Inputs tied 125°C = 5.5V, Inputs tied 85°C © 2009 Microchip Technology Inc. ...

Page 3

... This parameter is not tested but ensured 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. © 2009 Microchip Technology Inc. 25AA320A/25LC320A Industrial (I -40°C to +85°C ...

Page 4

... Vcc ≤ 5.5V 30 — ns 2.5V ≤ Vcc < 4.5V 60 — ns 1.8V ≤ Vcc < 2.5V 160 — ns — 1,000,000 — E/W Page Mode, 25°C, V Cycles — (Note 1) (Note 2) — 1. 2.5V to 5.5V CC Test Conditions 2) OTE = 5. OTE © 2009 Microchip Technology Inc. ...

Page 5

... 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 © 2009 Microchip Technology Inc. 25AA320A/25LC320A High-Impedance n Don’t Care High-Impedance 14 Don’t Care LSB in 3 Mode 1,1 ...

Page 6

... WPEN, WIP, WEL, BP1 and BP0 bits (Figure 2-6). A read attempt of a memory array location will not be possible during a write cycle. When the write cycle is completed, the write enable latch is reset. © 2009 Microchip Technology Inc. ...

Page 7

... Instruction High-Impedance SO © 2009 Microchip Technology Inc. 25AA320A/25LC320A HV Generator EEPROM Array Page Latches Y Decoder Sense Amp. R/W Control Read data from memory array beginning at selected address Write data to memory array beginning at selected address Reset the write enable latch (disable write operations) ...

Page 8

... FIGURE 2-2: BYTE WRITE SEQUENCE SCK Instruction High-Impedance SO FIGURE 2-3: PAGE WRITE SEQUENCE SCK Instruction SCK Data Byte DS21828F-page 16-bit Address 16-bit Address Data Byte Twc Data Byte Data Byte Data Byte n (32 max © 2009 Microchip Technology Inc. ...

Page 9

... SI SO FIGURE 2-5: WRITE DISABLE SEQUENCE (WRDI) CS SCK SI SO © 2009 Microchip Technology Inc. 25AA320A/25LC320A 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 • ...

Page 10

... These bits 1 0 are set by the user issuing the WRSR instruction. These R R bits are nonvolatile, and are shown in Table 2-3. WEL WIP See Figure 2-6 for the RDSR timing sequence. ’, no write Data from STATUS Register © 2009 Microchip Technology Inc. ...

Page 11

... See Table 2-4 for a matrix of functionality on the WPEN bit. FIGURE 2-7: WRITE STATUS REGISTER TIMING SEQUENCE (WRSR SCK Instruction Note: An internal write cycle (T WC sequence. © 2009 Microchip Technology Inc. 25AA320A/25LC320A See Figure 2-7 for the WRSR timing sequence. TABLE 2-3: BP1 Data to STATUS Register ...

Page 12

... The device is in low-power Standby mode ( • The write enable latch is reset • high-impedance state • A high-to-low-level transition required to enter active state Protected Blocks Unprotected Blocks Protected x Protected x Protected Protected STATUS Register Protected Protected Writable Writable Writable Protected Writable Writable © 2009 Microchip Technology Inc. ...

Page 13

... STATUS register write sequence will disable writing to the STATUS register internal write cycle has already begun, WP going low will have no effect on the write. © 2009 Microchip Technology Inc. 25AA320A/25LC320A The WP pin function is blocked when the WPEN bit in the STATUS register is low. This allows the user to ...

Page 14

... Example: 25LC32AI 0728 1L7 Example: TSSOP 1st Line Marking 5LBA Device I328 1L7 25AA320A 25AA320AX 25LC320A 25LC320AX : Example TDFN 1st Line Marking Device C71 828 25AA320A-I 17 25LC320A-E 25LC320A-I © 2009 Microchip Technology Inc. std mark 5ABAT 5LBAT std mark 5ABA ...

Page 15

... Note: In the event the full Microchip part number cannot be marked on one line, it will be carried over to the next line, thus limiting the number of available characters for customer-specific information. Note: Custom marking available. © 2009 Microchip Technology Inc. 25AA320A/25LC320A DS21828F-page 15 ...

Page 16

... DS21828F-page 16 I © 2009 Microchip Technology Inc. φ ...

Page 17

... Microchip Technology Inc. 25AA320A/25LC320A DS21828F-page 17 ...

Page 18

... DS21828F-page 18 α φ β © 2009 Microchip Technology Inc. ...

Page 19

... Microchip Technology Inc. 25AA320A/25LC320A DS21828F-page 19 ...

Page 20

... DS21828F-page 20 φ I © 2009 Microchip Technology Inc. ...

Page 21

... Microchip Technology Inc. 25AA320A/25LC320A DS21828F-page 21 ...

Page 22

... DS21828F-page 22 © 2009 Microchip Technology Inc. ...

Page 23

... Added TDFN Package; Revised Table 3-1, Pin Function Table; Updated Package Drawings. Revision F (06/09) Added X-Rotated TSSOP to package types; Revised Table 1-2, Param. 21; Revised Table 3-1; Revised TSSOP Line Marking table; Revised Product ID section. © 2009 Microchip Technology Inc. 25AA320A/25LC320A DS21828F-page 23 ...

Page 24

... NOTES: DS21828F-page 24 © 2009 Microchip Technology Inc. ...

Page 25

... To register, access the Microchip web site at www.microchip.com, click on Customer Change Notification and follow the registration instructions. © 2009 Microchip Technology Inc. 25AA320A/25LC320A CUSTOMER SUPPORT Users of Microchip products can receive assistance through several channels: • ...

Page 26

... 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? DS21828F-page 26 Total Pages Sent ________ FAX: (______) _________ - _________ N Literature Number: DS21828F © 2009 Microchip Technology Inc. ...

Page 27

... EEPROM, Industrial temp., Tape & Reel, SOIC package 25LC320AT-E/SN = 32k-bit, 2.5V Serial EEPROM, Extended temp., Tape & Reel, SOIC package 25LC320AT-I/ST = 32k-bit, 2.5V Serial EEPROM, Industrial temp., Tape & Reel, TSSOP package 25LC320AXT-I/ST = 32k-bit, 2.5V Serial EEPROM, Industrial temp., Tape & Reel, Rotated pinout, TSSOP package DS21828F-page 27 ...

Page 28

... NOTES: DS21828F-page 28 © 2009 Microchip Technology Inc. ...

Page 29

... PICDEM, PICDEM.net, PICtail, PIC Select Mode, Total Endurance, TSHARC, 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 30

... Fax: 886-3-6578-370 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 © 2009 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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