《AT93C66-10TI中文资料》由会员分享，可在线阅读，更多相关《AT93C66-10TI中文资料（21页珍藏版）》请在金锄头文库上搜索。
1、1 Features Low voltage and Standard voltage Operation 2 7 VCC 2 7V to 5 5V 1 8 VCC 1 8V to 5 5V User selectable Internal Organization 1K 128 x 8 or 64 x 16 2K 256 x 8 or 128 x 16 4K 512 x 8 or 256 x 16 Three wire Serial Interface 2 MHz Clock Rate 5V Self timed Write Cycle 10 ms max High Reliability
2、Endurance 1 Million Write Cycles Data Retention 100 Years Automotive Grade Extended Temperature and Lead Free Halogen Free Devices Available 8 lead PDIP 8 lead JEDEC SOIC 8 lead EIAJ SOIC 8 lead MAP 8 lead TSSOP and 8 ball dBGA2 Packages Description The AT93C46 56 66 provides 1024 2048 4096 bits of
3、serial electrically erasable pro grammable read only memory EEPROM organized as 64 128 256 words of 16 bits each when the ORG pin is connected to VCC and 128 256 512 words of 8 bits each when the ORG pin is tied to ground The device is optimized for use in many indus trial and commercial application
4、s where low power and low voltage operations are essential The AT93C46 56 66 is available in space saving 8 lead PDIP 8 lead JEDEC SOIC 8 lead EIAJ SOIC 8 lead MAP 8 lead TSSOP and 8 lead dBGA2 packages The AT93C46 56 66 is enabled through the Chip Select pin CS and accessed via a three wire serial
5、interface consisting of Data Input DI Data Output DO and Shift Clock SK Upon receiving a Read instruction at DI the address is decoded and the data is clocked out serially on the DO pin The Write cycle is completely self timed and no separate Erase cycle is required before Write The Write cycle is o
6、nly enabled when the part is in the Erase Write Enable state When CS is brought high following the initiation of a Write cycle the DO pin outputs the Ready Busy status of the part The AT93C46 56 66 is available in 2 7V to 5 5V and 1 8V to 5 5V versions Table 1 Pin Configurations Pin NameFunction CSC
7、hip Select SKSerial Data Clock DISerial Data Input DOSerial Data Output GNDGround VCCPower Supply ORGInternal Organization DCDon t Connect Three wire Serial EEPROMs 1K 128 x 8 or 64 x 16 2K 256 x 8 or 128 x 16 4K 512 x 8 or 256 x 16 AT93C46 AT93C56 1 AT93C66 2 Note 1 This device is not recom mended
8、for new designs Please refer to AT93C56A 2 This device is not recom mended for new designs Please refer to AT93C66A 0172Z SEEPR 9 05 1 2 3 4 8 7 6 5 CS SK DI DO VCC DC ORG GND VCC DC ORG GND CS SK D1 D0 1 2 3 4 8 7 6 5 1 2 3 4 8 7 6 5 CS SK DI DO VCC DC ORG GND 1 2 3 4 8 7 6 5 DC VCC CS SK ORG GND D
9、O DI 1 2 3 4 8 7 6 5 VCC DC ORG GND CS SK DI DO 1 2 3 4 8 7 6 5 CS SK DI DO VCC DC ORG GND 8 lead SOIC8 lead dBGA2 8 lead PDIP 8 lead SOIC Rotated R 1K JEDEC Only 8 lead MAP8 lead TSSOP 元器件交易网w w w c e c b 2 b c o m 2AT93C46 56 66 0172Z SEEPR 9 05 Figure 1 Block Diagram Note When the ORG pin is conn
10、ected to VCC the x 16 organization is selected When it is connected to ground the x 8 organization is selected If the ORG pin is left uncon nected and the application does not load the input beyond the capability of the internal 1 Meg ohm pullup then the x 16 organization is selected The feature is
11、not available on the 1 8V devices For the AT93C46 if x 16 organization is the mode of choice and Pin 6 ORG is left unconnected Atmel recommends using the AT93C46A device For more details see the AT93C46A datasheet Absolute Maximum Ratings Operating Temperature 55 C to 125 C NOTICE Stresses beyond th
12、ose listed under Absolute Maximum Ratings may cause permanent dam age to the device This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied Exposure to absolute maximu
13、m rating conditions for extended periods may affect device reliability Storage Temperature 65 C to 150 C Voltage on Any Pin with Respect to Ground 1 0V to 7 0V Maximum Operating Voltage 6 25V DC Output Current 5 0 mA 元器件交易网w w w c e c b 2 b c o m 3 AT93C46 56 66 0172Z SEEPR 9 05 Note 1 This paramete
14、r is characterized and is not 100 tested Note 1 VIL min and VIH max are reference only and are not tested Table 2 Pin Capacitance 1 Applicable over recommended operating range from TA 25 C f 1 0 MHz VCC 5 0V unless otherwise noted SymbolTest ConditionsMaxUnitsConditions COUTOutput Capacitance DO 5pF
15、VOUT 0V CINInput Capacitance CS SK DI 5pFVIN 0V Table 3 DC Characteristics Applicable over recommended operating range from TAI 40 C to 85 C VCC 1 8V to 5 5V TAE 40 C to 125 C VCC 1 8V to 5 5V unless otherwise noted SymbolParameterTest ConditionMinTypMaxUnit VCC1Supply Voltage1 85 5V VCC2Supply Volt
16、age2 75 5V VCC3Supply Voltage4 55 5V ICCSupply CurrentVCC 5 0V READ at 1 0 MHz0 52 0mA WRITE at 1 0 MHz0 52 0mA ISB1Standby CurrentVCC 1 8VCS 0V00 1 A ISB2Standby CurrentVCC 2 7VCS 0V6 010 0 A ISB3Standby CurrentVCC 5 0VCS 0V1730 A IILInput LeakageVIN 0V to VCC 0 11 0 A IOLOutput LeakageVIN 0V to VCC 0 11 0 A VIL1 1 Input Low Voltage 2 7V VCC 5 5V 0 60 8 V VIH1 1 Input High Voltage2 0VCC 1 VIL2 1 Input Low Voltage 1 8V VCC 2 7V 0 6VCC x 0 3 V VIH2 1 Input High VoltageVCC x 0 7VCC 1 VOL1Output Lo
