AT49F2048-70TC ATMEL Corporation, AT49F2048-70TC Datasheet
AT49F2048-70TC
Available stocks
Related parts for AT49F2048-70TC
AT49F2048-70TC Summary of contents
Page 1
... Typical 10,000 Write Cycles Description The AT49F2048 is a 5-volt only, 2 megabit Flash Memory organized as 128K words of 16 bits each. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers access times with power dissipation of just 275 mW. When deselected, the CMOS standby current is less than 300 A. ...
Page 2
... CE, OE, and WE inputs to avoid bus connec- tion. The AT49F2048 is a 5-volt-only, 2 megabit Flash Memory organized as 128K words contention. Reprogram- ming the AT49F2048 is performed by first erasing a block of data and then programming on a word-by-word basis. The device is erased by executing the erase command sequence ...
Page 3
... I/O7. Once the program or erase cycle has com- pleted, true data will be read from the device. DATA polling may begin at any time during the program cycle. TOGGLE BIT: In addition to DATA polling the AT49F2048 provides another method for determining the end of a pro- 3 ...
Page 4
... I/O6 toggling between one and zero. Once the program cycle has completed, I/O6 will stop toggling and valid data will be read. Examining the toggle bit may begin at any time during a program cycle. HARDWARE DATA PROTECTION: Hardware features protect against inadvertent programs to the AT49F2048 in Command Definition (in Hex) 1st Bus Cycle Command ...
Page 5
... MHz OUT -400 -100 4. AT49F2048-90 AT49F2048-12 0°C - 70°C 0°C - 70°C -40°C - 85°C -40°C - 85° OUT High Z High Z X High Z ( ...
Page 6
... ACC HIGH after the address transition without impact on t ACC after the falling edge of CE without impact Output Test Load Max 6 12 AT49F2048-90 AT49F2048-12 Min Max Min ...
Page 7
AC Word Load Characteristics Symbol Parameter Address, OE Set-up Time AS OES t Address Hold Time AH t Chip Select Set-up Time CS t Chip Select Hold Time CH t Write Pulse Width (WE or CE) WP ...
Page 8
... OE must be high only when WE and CE are both low. 2. For chip erase, the address should be 5555. For sector erase, the address depends on what sector erased. (See note 4 under command definitions.) 3. For chip erase, the data should be 10 AT49F2048 8 PROGRAM CYCLE ...
Page 9
Data Polling Characteristics Symbol Parameter t Data Hold Time Hold Time OEH ( Output Delay OE t Write Recovery Time WR Notes: 1. These parameters are characterized and not 100% tested. 2. See t ...
Page 10
... The device does not remain in identification mode if powered down. 4. The device returns to standard operation mode. 5. Manufacturer Code: 1FH Device Code: 82H 6. Either one of the Product ID Exit commands can be used. AT49F2048 10 Boot Block Lockout Enable Algorithm LOAD DATA F0 TO ANY ADDRESS Notes: 1. EXIT PRODUCT ...
Page 11
... Users requiring the boot block the higher address range should contact Atmel. 44R 44-Lead, 0.525" Wide, Plastic Gull-Wing Small Outline Package (SOIC/SOP) 48T 48-Lead, Thin Small Outline Package (TSOP) Ordering Code AT49F2048-70RC AT49F2048-70TC AT49F2048-70RI AT49F2048-70TI AT49F2048-90RC AT49F2048-90TC AT49F2048-90RI AT49F2048-90TI AT49F2048-12RC ...
Page 12
... Packaging Information 44R, 44-Lead, 0.525" Wide, Plastic Gull Wing Small Outline (SOIC) Dimensions in Inches and (Millimeters) AT49F2048 12 48T, 48-Lead, Plastic Thin Small Outline Package (TSOP) Dimensions in Millimeters and (Inches) * JEDEC OUTLINE MO-142 DD *Controlling dimension: millimeters ...
Page 13
... Marks bearing and/or are registered trademarks and trademarks of Atmel Corporation. Terms and product names in this document may be trademarks of others. Atmel Operations Atmel Colorado Springs 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 ...