28C64A-20/P Microchip Technology, 28C64A-20/P Datasheet
28C64A-20/P
Specifications of 28C64A-20/P
Related parts for 28C64A-20/P
28C64A-20/P Summary of contents
Page 1
... Commercial: 0°C to +70°C - Industrial: -40°C to +85°C DESCRIPTION The Microchip Technology Inc. 28C64A is a CMOS 64K non- volatile electrically Erasable PROM. accessed like a static RAM for the read or write cycles with- out the need of external components. During a “byte write”, the address and data are latched internally, freeing the micro- processor address and data bus for other operations ...
Page 2
... ELECTRICAL CHARACTERISTICS 1.1 MAXIMUM RATINGS* V and input voltages w.r.t. V ....... -0. 6.25V CC SS Voltage on OE w.r.t. V ...................... -0.6V to +13.5V SS Voltage on A9 w.r.t. V ...................... -0.6V to +13.5V SS Output Voltage w.r.t. V .................-0. Storage temperature ..........................-65°C to +125°C Ambient temp. with power applied .......-50°C to +95°C *Notice: Stresses above those listed under “ ...
Page 3
... Address Valid t CE(2) t OE(2) t ACC - t after the falling edge of CE without impact 28C64A = 0.45V 2.0V 0. Tamb = 0°C to +70°C (I): Tamb = -40°C to +85°C -25 28C64A Units Conditions Min Max — 250 — 250 — 100 (Note 1) 0 — ns (Note 1) 1M — ...
Page 4
... Write Cycle Time ( F) 28C64A Note 1: A write cycle can be initiated going low, whichever occurs last. The data is latched on the pos- itive edge WE, whichever occurs first. 2: Data must be valid within 1000ns max. after a write cycle is initiated and must be stable at least until t after the positive edge CE, whichever occurs first ...
Page 5
... Chip Clear V IL Extra Row Read V IL Extra Row Write * Note 12.0V 0.5V. *Pulsed per programming waveforms. H 2004 Microchip Technology Inc. t ACC WPH 28C64A Last Written Address Valid True Data Out I/O7 Out 10ms 12. Data Out CC V Data In CC DS11109K-page 5 ...
Page 6
... The Ready/Busy pin goes to a logic low level indicating that the H signals the microprocessor host that the system bus is H free for other activity. When Ready/Busy goes back to a high, the 28C64A H to accept another cycle. H 2.5 Data Polling H ...
Page 7
... Product Identification System To order or to obtain information, e.g., on pricing or delivery, please use the listed part numbers, and refer to the factory or the listed sales offices. 28C64A F T – 2004 Microchip Technology Inc. Package Plastic Leaded Chip Carrier (PLCC Plastic DIP (600 mil) ...
Page 8
... NOTES: DS11109K-page 8 2004 Microchip Technology Inc. ...
Page 9
... PICLAB, PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance 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 10
... Via Salvatore Quasimodo, 12 20025 Legnano (MI) Milan, Italy Tel: 39-0331-742611 Fax: 39-0331-466781 Netherlands Waegenburghtplein 4 NL-5152 JR, Drunen, Netherlands Tel: 31-416-690399 Fax: 31-416-690340 United Kingdom 505 Eskdale Road Winnersh Triangle Wokingham Berkshire, England RG41 5TU Tel: 44-118-921-5869 Fax: 44-118-921-5820 07/12/04 2004 Microchip Technology Inc. ...