IC EEPROM 32KBIT 10MHZ 8DIP

CAT25320LI-G

Manufacturer Part NumberCAT25320LI-G
DescriptionIC EEPROM 32KBIT 10MHZ 8DIP
ManufacturerON Semiconductor
CAT25320LI-G datasheet
 


Specifications of CAT25320LI-G

Format - MemoryEEPROMs - SerialMemory TypeEEPROM
Memory Size32K (4K x 8)Speed10MHz
InterfaceSPI, 3-Wire SerialVoltage - Supply1.8 V ~ 5.5 V
Operating Temperature-40°C ~ 85°CPackage / Case8-DIP (0.300", 7.62mm)
Organization4 K x 8Interface TypeSPI
Maximum Clock Frequency5 MHzAccess Time75 ns
Supply Voltage (max)5.5 VSupply Voltage (min)1.8 V
Maximum Operating Current3 mAMaximum Operating Temperature+ 85 C
Mounting StyleThrough HoleMinimum Operating Temperature- 40 C
Operating Supply Voltage1.8 V, 5.5 VLead Free Status / RoHS StatusLead free / RoHS Compliant
Other names25320LI-G  
1
Page 1
2
Page 2
3
Page 3
4
Page 4
5
Page 5
6
Page 6
7
Page 7
8
Page 8
9
Page 9
10
Page 10
11
12
13
14
15
16
Page 1/16

Download datasheet (183Kb)Embed
Next
CAT25320
32-Kb SPI Serial CMOS
EEPROM
Description
The CAT25320 is a 32−Kb Serial CMOS EEPROM device
internally organized as 4096x8 bits. This features a 32−byte page write
buffer and supports the Serial Peripheral Interface (SPI) protocol. The
device is enabled through a Chip Select (CS) input. In addition, the
required bus signals are clock input (SCK), data input (SI) and data
output (SO) lines. The HOLD input may be used to pause any serial
communication with the CAT25320 device. The device features
software and hardware write protection, including partial as well as
full array protection.
Features
10 MHz SPI Compatible
1.8 V to 5.5 V Supply Voltage Range
SPI Modes (0,0) & (1,1)
32−byte Page Write Buffer
Self−timed Write Cycle
Hardware and Software Protection
Block Write Protection
− Protect 1/4, 1/2 or Entire EEPROM Array
Low Power CMOS Technology
1,000,000 Program/Erase Cycles
100 Year Data Retention
Industrial and Extended Temperature Range
PDIP, SOIC, TSSOP 8−lead, TDFN and UDFN 8−pad Packages
This Device is Pb−Free, Halogen Free/BFR Free, and RoHS
Compliant
V
CC
SI
CS
CAT25320
WP
HOLD
SCK
V
SS
Figure 1. Functional Symbol
© Semiconductor Components Industries, LLC, 2010
February, 2010 − Rev. 9
CASE 751BD
SO
See detailed ordering and shipping information in the package
dimensions section on page 16 of this data sheet.
1
http://onsemi.com
SOIC−8
UDFN−8
TDFN−8
V SUFFIX
HU3 SUFFIX
VP2 SUFFIX
CASE 517AX
CASE 511AK
PDIP−8
TSSOP−8
L SUFFIX
Y SUFFIX
CASE 646AA
CASE 948AL
PIN CONFIGURATION
1
CS
V
CC
SO
HOLD
SCK
WP
V
SI
SS
PDIP (L), SOIC (V), TSSOP (Y),
TDFN (VP2), UDFN (HU3)
PIN FUNCTION
Pin Name
Function
CS
Chip Select
SO
Serial Data Output
WP
Write Protect
V
Ground
SS
SI
Serial Data Input
SCK
Serial Clock
HOLD
Hold Transmission Input
V
Power Supply
CC
ORDERING INFORMATION
Publication Order Number:
CAT25320/D

CAT25320LI-G Summary of contents

  • Page 1

    CAT25320 32-Kb SPI Serial CMOS EEPROM Description The CAT25320 is a 32−Kb Serial CMOS EEPROM device internally organized as 4096x8 bits. This features a 32−byte page write buffer and supports the Serial Peripheral Interface (SPI) protocol. The device is enabled ...

  • Page 2

    Table 1. ABSOLUTE MAXIMUM RATINGS Operating Temperature Storage Temperature Voltage on any Pin with Respect to Ground (Note 1) Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions ...

  • Page 3

    Table 5. A.C. CHARACTERISTICS Symbol Parameter f Clock Frequency SCK t Data Setup Time SU t Data Hold Time H t SCK High Time WH t SCK Low Time WL t HOLD to Output Low (Note 5) ...

  • Page 4

    ... Figure 2. Synchronous Data Timing http://onsemi.com 4 Opcode Operation 0000 0110 Enable Write Operations 0000 0100 Disable Write Operations 0000 0101 Read Status Register 0000 0001 Write Status Register 0000 0011 Read Data from Memory 0000 0010 Write Data to Memory CNS DIS HI−Z , either CC ...

  • Page 5

    ... Low X High X High allowed to protect a quarter, one half or the entire memory, by setting these bits according to Table 9. The protected blocks then become read−only. The WPEN (Write Protect Enable) bit acts as an enable for the WP pin. Hardware write protection is enabled when the WP pin is low and the WPEN bit is 1 ...

  • Page 6

    ... The CAT25320 device powers up into a write disable state. The device contains a Write Enable Latch (WEL) which must be set before attempting to write to the memory array or to the status register. In addition, the address of the memory location( written must be outside the protected area, as defined by BP0 and BP1 bits from the status register ...

  • Page 7

    Byte Write Once the WEL bit is set, the user may execute a write sequence, by sending a WRITE instruction, a 16−bit address and data as shown in Figure 5. Only 12 significant address bits are used by the CAT25320. ...

  • Page 8

    Write Status Register The Status Register is written by sending a WRSR instruction according to timing shown in Figure 7. Only bits 2, 3 and 7 can be written using the WRSR command SCK OPCODE ...

  • Page 9

    ... Read from Memory Array To read from memory, the host sends a READ instruction followed by a 16−bit address (see Table 11 for the number of significant address bits). After receiving the last address bit, the CAT25320 will respond by shifting out data on the SO pin (as shown in Figure 9). Sequentially stored data can be read out by simply continuing to run the clock ...

  • Page 10

    ... The CS input must be set high after the proper number of clock cycles to start the internal write cycle. Access to the memory array during an internal write cycle is ignored and programming is continued. Any invalid op−code will be ignored and the serial output pin (SO) will drops remain in the high impedance state ...

  • Page 11

    PIN # 1 IDENTIFICATION D TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. (2) Complies with JEDEC MS-001. PACKAGE DIMENSIONS PDIP−8, 300 mils CASE 646AA−01 ISSUE A SYMBOL ...

  • Page 12

    PIN # 1 IDENTIFICATION TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MS-012. PACKAGE DIMENSIONS SOIC 8, 150 mils CASE 751BD−01 ISSUE O SYMBOL ...

  • Page 13

    E1 e TOP VIEW SIDE VIEW Notes: (1) All dimensions are in millimeters. Angles in degrees. (2) Complies with JEDEC MO-153. PACKAGE DIMENSIONS TSSOP8, 4.4x3 CASE 948AL−01 ISSUE O SYMBOL MIN A A1 0.05 A2 ...

  • Page 14

    D E PIN#1 INDEX AREA TOP VIEW SYMBOL MIN NOM A 0.70 0.75 A1 0.00 0.02 A2 0.45 0.55 A3 0.20 REF b 0.20 0.25 D 1.90 2.00 D2 1.30 1.40 E 2.90 3.00 E2 1.20 1.30 e 0.50 TYP ...

  • Page 15

    D E PIN #1 INDEX AREA TOP VIEW SYMBOL MIN NOM A 0.45 0.50 A1 0.00 0.02 A3 0.127 REF b 0.20 0.25 D 1.90 2.00 D2 1.50 1.60 E 2.90 3.00 E2 0.10 0.20 e 0.50 TYP K 0.10 ...

  • Page 16

    ... The device used in the above example is a CAT25320VI−GT3 (SOIC, Industrial Temperature, NiPdAu, Tape & Reel, 3,000/Reel). 12. For additional package and temperature options, please contact your nearest ON Semiconductor Sales office. 13. For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D ...