Homedatasheet24C320-EP

24C320-EP Datasheet

32k 5.0v Spi Bus Serial EePROM
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Description

Features, Applications
FEATURES

SPI modes 0,0 and 1,1 3.0 MHz Clock Rate Single 5V Supply Low Power CMOS Technology - Max Write Current: mA - Read Current: 3MHz - Standby Current: 1 �A typical x 8 Organization 32 Byte Page Sequential Read Self-timed ERASE and WRITE Cycles Block Write Protection - Protect none, 1/2, or all of Array Built-in Write Protection - Power On/Off Data Protection Circuitry - Write Enable Latch - Write Protect Pin High Reliability - Endurance: 1M cycles (guaranteed) - Data Retention: >200 years - ESD protection: >4000V 8-pin PDIP/SOIC, 14-pin TSSOP Temperature ranges supported - Commercial (C): +70�C - Industrial (I): +85�C - Automotive (E): to +125�C

EEPROM I/O Control Logic Memory Control Logic X Dec Page Latches SO CS SCK HOLD Sense Amp. R/W Control Y Decoder Array

DESCRIPTION

The Microchip Technology Inc. a 32K-bit serial Electrically Erasable PROM (EEPROM). 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, allowing any number of devices to share the same bus. There are two other inputs that provide the end user with additional flexibility. 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. Also write operations to the Status Register can be disabled via the write protect pin (WP).

2.25 K VCC........................................................................ 7.0V All inputs and outputs w.r.t. VSS....... to VCC+1.0V Storage temperature............................ to 150�C Ambient temperature under bias.......... to 125�C Soldering temperature of leads (10 seconds).................................................... +300�C ESD protection on all pins..................................... 4 kV

*Notice: Stresses above those listed under `Maximum ratings' may cause permanent damage to the device. This is a stress rating only and functional operation of the device at those or any other conditions above those indicated in the operational listings of this specification is not implied. Exposure to maximum rating conditions for extended period of time may affect device reliability

Function Chip Select Input Serial Data Output Serial Data Input Serial Clock Input Write Protect Pin Ground Supply Voltage Hold Input No Connect

Timing Measurement Reference Level Input 0.5 VCC Output 0.5 VCC Note 1: For VCC 4.0V 2: For VCC > 4.0V

Applicable over recommended operating ranges shown below unless otherwise noted: VCC to 5.5V Commercial (C): Tamb to +70�C Industrial (I): Tamb to +85�C Automotive (E): Tamb to +125�C Parameter High level input voltage Low level input voltage Low level output voltage High level output voltage Input leakage current Output leakage current Internal Capacitance (all inputs and outputs) Operating Current Symbol VIH VIL VOL VOH ILI ILO CINT ICC write ICC read Standby Current

IOH=-400 �A CS=VIH, VIN=GND to VCC CS=VIH, VOUT=GND to VCC Tamb=25�C, FCLK=1.0 MHz, VCC=5.5V (Note) VCC=5.5V; SO=Open VCC=5.5V; SO=Open, FCLK=3.0 MHz CS=VCC=5.5V; VIN=Gnd or VCC


Features

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