AT28C64B-20 ATMEL [ATMEL Corporation], AT28C64B-20 Datasheet
AT28C64B-20
Available stocks
Related parts for AT28C64B-20
AT28C64B-20 Summary of contents
Page 1
... Commercial and Industrial Temperature Ranges Description The AT28C64B is a high-performance electrically-erasable and programmable read only memory (EEPROM). Its 64K of memory is organized as 8,192 words by 8 bits. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers access times to 150 ns with power dissipation of just 220 mW. When the device is deselected, the CMOS standby current is less than 100 µ ...
Page 2
... The AT28C64B is accessed like a Static RAM for the read or write cycle without the need for external components. The device contains a 64-byte page register to allow writing bytes simultaneously. During a write cycle, the addresses and bytes of data are internally latched, freeing the address and data bus for other operations ...
Page 3
... AT28C64B. When enabled, the software data protection (SDP), will prevent inadvertent writes. The SDP feature may be enabled or disabled by the user; the AT28C64B is shipped from Atmel with SDP disabled. SDP is enabled by the user issuing a series of three write ...
Page 4
... SB2 Active Current Input Low Voltage IL V Input High Voltage IH V Output Low Voltage OL V Output High Voltage OH AT28C64B 4 AT28C64B-15 AT28C64B-20 0°C - 70°C 0°C - 70°C -40°C - 85°C -40°C - 85°C 5V ± 10% 5V ± ...
Page 5
... ACC after the falling edge of CE without impact pF). L Output Test Load Max 6 12 AT28C64B AT28C64B-20 AT28C64B-25 Min Max Min Max 200 250 200 250 100 ...
Page 6
... Address Hold Time AH t Chip Select Setup Time CS t Chip Select Hold Time CH t Write Pulse Width ( Data Setup Time Data, OE Hold Time DH OEH AC Write Waveforms WE Controlled CE Controlled AT28C64B 6 Min Max Units 100 ...
Page 7
... A6 through A12 must specify the same page address during each high to low transition of WE (or CE must be high only when WE and CE are both low. Chip Erase Waveforms µsec (min msec (min 12.0 ± 0. (1)(2) AT28C64B Min Max Units ...
Page 8
... Software Protected Write Cycle Waveforms Notes through A12 must specify the same page address during each high to low transition of WE (or CE) after the software code has been entered must be high only when WE and CE are both low. AT28C64B 8 Software Data Protection Disable Algorithm (2) (1)(2) (1) ...
Page 9
... Toggle Bit Waveforms Notes: 1. Toggling either both OE and CE will operate toggle bit. 2. Beginning and ending state of I/O6 will vary. 3. Any address location may be used but the address should not vary. (1) (1) AT28C64B Min Typ Max Min Typ Max 10 ...
Page 10
... AT28C64B 10 ...
Page 11
... Ordering Code AT28C64B-15JC AT28C64B-15PC AT28C64B-15SC AT28C64B-15TC AT28C64B-15JI AT28C64B-15PI AT28C64B-15SI AT28C64B-15TI AT28C64B-20JC AT28C64B-20PC AT28C64B-20SC AT28C64B-20TC AT28C64B-20JI AT28C64B-20PI AT28C64B-20SI AT28C64B-20TI AT28C64B-25JC AT28C64B-25PC AT28C64B-25SC AT28C64B-25TC AT28C64B-25JI AT28C64B-25PI AT28C64B-25SI AT28C64B-25TI Package and Temperature Combinations JC, JI, PC, PI, SC, SI, TC, TI JC, JI, PC, PI, SC, SI, TC, TI JC, JI, PC, PI, SC, SI, TC, TI ...
Page 12
... Wide, Plastic Gull Wing Small Outline (SOIC) Dimensions in Inches and (Millimeters) AT28C64B 12 28P6, 28-lead, 0.600" Wide, Plastic Dual Inline Package (PDIP) Dimensions in Inches and (Millimeters) JEDEC STANDARD MS-011 AB .025(.635) X 30˚ - 45˚ .012(.305) ...
Page 13
Atmel Headquarters Corporate Headquarters 2325 Orchard Parkway San Jose, CA 95131 TEL (408) 441-0311 FAX (408) 487-2600 Europe Atmel U.K., Ltd. Coliseum Business Centre Riverside Way Camberley, Surrey GU15 3YL England TEL (44) 1276-686-677 FAX (44) 1276-686-697 Asia Atmel Asia, ...