25LC128XT-I/ST Microchip Technology, 25LC128XT-I/ST Datasheet

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25LC128XT-I/ST

Manufacturer Part Number
25LC128XT-I/ST
Description
128k, 16K X 8 , 2.5V SER EE IND, ROTATED PINOUT 8 TSSOP 4.4mm T/R
Manufacturer
Microchip Technology
Datasheet

Specifications of 25LC128XT-I/ST

Format - Memory
EEPROMs - Serial
Memory Type
EEPROM
Memory Size
128K (16K x 8)
Speed
10MHz
Interface
SPI, 3-Wire Serial
Voltage - Supply
2.5 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
25LC128XT-I/STTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
25LC128XT-I/ST
Manufacturer:
MICROCHIP
Quantity:
12 000
Device Selection Table
Features
• Max. Clock 10 MHz
• Low-power CMOS Technology
• 16,384 x 8-bit Organization
• 64 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
Pin Function Table
© 2009 Microchip Technology Inc.
* 25XX128 is used in this document as a generic part number for the 25AA128, 25LC128 devices.
- 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: 1,000,000 erase/write cycles
- Data retention: > 200 years
- ESD protection: > 4000V
- Industrial (I):
- Automotive (E):
Part Number
Name
HOLD
SCK
V
V
WP
25LC128
25AA128
CS
SO
SI
CC
SS
Chip Select Input
Serial Data Output
Write-Protect
Ground
Serial Data Input
Serial Clock Input
Hold Input
Supply Voltage
-40°C to +85°C
-40°C to +125°C
V
CC
2.5-5.5V
1.8-5.5V
128K SPI Bus Serial EEPROM
Function
Range
25AA128/25LC128
Page Size
64 Byte
64 Byte
Description
The Microchip Technology Inc. 25AA128/25LC128
(25XX128
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,
transitions on its inputs will be ignored, with the
exception of Chip Select, allowing the host to service
higher priority interrupts.
The 25XX128 is available in standard packages
including 8-lead PDIP and SOIC, and advanced
packaging including 8-lead DFN and 8-lead TSSOP.
Package Types (not to scale)
HOLD
V
X-Rotated TSSOP
SO
CS
CC
Temp. Ranges
V
WP
CS
SO
SS
1
2
3
4
1
2
3
4
I,E
(X/ST)
*
TSSOP
) are 128k-bit Serial Electrically Erasable
I
(ST)
8
7
6
5
8
7
6
5
SCK
SI
V
WP
V
HOLD
SCK
SI
SS
CC
V
WP
SO
CS
SS
V
WP
CS
SO
SS
P, SN, ST, MF
P, SN, ST, MF
1
2
3
4
Packages
PDIP/SOIC
1
2
3
4
(P, SN)
DFN
(MF)
DS21831D-page 1
8
7
6
5
V
HOLD
SCK
SI
8
7
6
5
CC
V
HOLD
SCK
SI
CC

Related parts for 25LC128XT-I/ST

25LC128XT-I/ST Summary of contents

Page 1

... Page Size Temp. Ranges 64 Byte I,E 64 Byte I Description The Microchip Technology Inc. 25AA128/25LC128 * (25XX128 ) are 128k-bit 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: www.microchip.com. © 2009 Microchip Technology Inc. 25AA128/25LC128 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. 25AA128/25LC128 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. 25AA128/25LC128 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 DS21831D-page 16-bit Address 16-bit Address Data Byte Twc Data Byte Data Byte Data Byte n (64 max © 2009 Microchip Technology Inc. ...

Page 9

... SI SO FIGURE 2-5: WRITE DISABLE SEQUENCE (WRDI) CS SCK SI SO © 2009 Microchip Technology Inc. 25AA128/25LC128 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

... Instruction Note: An internal write cycle (T WC © 2009 Microchip Technology Inc. 25AA128/25LC128 only writes to nonvolatile bits in the STATUS register are disabled. See Table 2-4 for a matrix of functionality on the WPEN bit. See Figure 2-7 for the WRSR timing sequence. TABLE 2-3: BP1 0 0 ...

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 dis- able 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. 25AA128/25LC128 The WP pin function is blocked when the WPEN bit in the STATUS register is low. This allows the user to install the 25XX128 in a system with WP pin grounded and still be able to write to the STATUS register ...

Page 14

... DS21831D-page 14 : Example 25LC128 I/MF 0328 1L7 Example: 25AA128 I/P 1L7 0328 Example: 25LC128 I/SN 0328 1L7 Example: TSSOP 1st Line Marking 5LD Device I328 1L7 25AA128 25AA128X 25LC128 25LC128X © 2009 Microchip Technology Inc. std mark 5AD 5ADX 5LD 5LDX ...

Page 15

... Pin 1 visual index feature may vary, but must be located within the hatched area. 2. Package may have one or more exposed tie bars at ends. 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. © 2009 Microchip Technology Inc. 25AA128/25LC128 ...

Page 16

... E .290 E1 .240 D .348 .365 L .115 c .008 b1 .040 .060 b .014 .018 eB – c MAX 8 – .210 .130 .195 – – .310 .325 .250 .280 .400 .130 .150 .010 .015 .070 .022 – .430 Microchip Technology Drawing C04-018B © 2009 Microchip Technology Inc. ...

Page 17

... Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed 0.15 mm per side. 4. 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. © 2009 Microchip Technology Inc. 25AA128/25LC128 D e ...

Page 18

... WKH PRVW FXUUHQW SDFNDJH GUDZLQJV SOHDVH VHH WKH 0LFURFKLS 3DFNDJLQJ 6SHFLILFDWLRQ ORFDWHG DW KWWS ZZZ PLFURFKLS FRP SDFNDJLQJ DS21831D-page 18 PP %RG\ >62,&@ © 2009 Microchip Technology Inc. ...

Page 19

... 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. © 2009 Microchip Technology Inc. 25AA128/25LC128 D E ...

Page 20

... Replaced Package drawings (Rev. AP); Replaced On- Line Support; Revised Product ID section. Revision D (06/09) Added X-Rotated TSSOP to package types; Revised Table 1-2, Param. 21; Revised Table 3-1; Revised TSSOP Line Marking table; Added SOIC Land Pattern; Revised Product ID section. DS21831D-page 20 © 2009 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. © 2009 Microchip Technology Inc. 25AA128/25LC128 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? DS21831D-page 22 Total Pages Sent ________ FAX: (______) _________ - _________ N Literature Number: DS21831D © 2009 Microchip Technology Inc. ...

Page 23

... EEPROM, Industrial temp., Tape & Reel, TSSOP package 25LC128-I/P = 128k-bit, 2.5V Serial EEPROM, Industrial temp., P-DIP package 25LC128T-E/MF = 128k-bit, 2.5V Serial EEPROM, Extended temp., Tape & Reel, DFN package 25LC128XT-I/ST = 128k-bit, 2.5V Serial EEPROM, Industrial temp., Tape & Reel, Rotated pinout, TSSOP package DS21831D-page 23 ...

Page 24

... NOTES: DS21831D-page 24 © 2009 Microchip Technology Inc. ...

Page 25

... 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 26

... 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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