Motore di ricerca datesheet componenti elettronici |
|
93C56 Scheda tecnica(PDF) 2 Page - STMicroelectronics |
|
93C56 Scheda tecnica(HTML) 2 Page - STMicroelectronics |
2 / 13 page The memory is accessed by a set of instructions which includes Read a byte/word, Write a byte/word, Erase a byte/word, Erase All and Write All. A Read instruction loads the address of the first byte/word to be read into an internal address pointer. The data contained at this address is then clocked out serially. The address pointer is auto- matically incremented after the data is output and, if the Chip Select input (S) is held High, the ST93C56 can output a sequential stream of data bytes/words. In this way, the memory can be read as a data stream from 8 to 2048 bits long, or continuously as the address counter automatically rolls over to ’00’ when the highest address is reached. Programming is internally self-timed (the external clock signal on C input may be discon- nected or left running after the start of a Write cycle) and does not require an erase cycle prior to the Write instruction. The Write instruction writes 8 or 16 bits at one time into one of the 256 bytes or 128 words. After the start of the programming cycle, a Busy/Ready signal is available on the Data output (Q) when Chip Select (S) is driven High. The design of the ST93C56 and the High Endur- ance CMOS technologyused for its fabrication give an Erase/Write cycle Endurance of 1,000,000 cy- cles and a data retention of 40 years. The DU (Don’t Use) pin does not affect the function of the memory and it is reserved for use by SGS- THOMSON during test sequences.The pin may be left unconnected or may be connected to VCC or VSS. Direct connection of DU to VSS is recom- mended for the lowest standby power consump- tion. VSS Q ORG DU C SVCC D AI00882C ST93C56 ST93C57 1 2 3 4 8 7 6 5 Figure 2A. DIP Pin Connections 1 VSS Q ORG DU C SVCC D AI00883D ST93C56 ST93C57 2 3 4 8 7 6 5 Figure 2B. SO Pin Connections DESCRIPTION (cont’d) Warning: DU = Don’t Use Warning: DU = Don’t Use Symbol Parameter Value Unit TA Ambient Operating Temperature –40 to 125 °C TSTG Storage Temperature –65 to 150 °C TLEAD Lead Temperature, Soldering (SO8 package) (PSDIP8 package) 40 sec 10 sec 215 260 °C VIO Input or Output Voltages (Q = VOH or Hi-Z) –0.3 to VCC +0.5 V VCC Supply Voltage –0.3 to 6.5 V VESD Electrostatic Discharge Voltage (Human Body model) (2) 4000 V Electrostatic Discharge Voltage (Machine model) (3) 500 V Notes: 1. Except for the rating ”Operating Temperature Range”, stresses above those listed in the Table ”Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the Operating sections of this specification is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the SGS-THOMSON SURE Program and other relevant quality documents. 2. MIL-STD-883C, 3015.7 (100pF, 1500 Ω). 3. EIAJ IC-121 (Condition C) (200pF, 0 Ω). Table 2. Absolute Maximum Ratings (1) 2/13 ST93C56/56C, ST93C57C |
Codice articolo simile - 93C56 |
|
Descrizione simile - 93C56 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |