at49bv040-15ci ATMEL Corporation, at49bv040-15ci Datasheet
at49bv040-15ci
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at49bv040-15ci Summary of contents
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... A13 A16 A11 A15 A12 A8 NC A18 TSOP Top View ( mm TSOP Top View ( mm) 4-Megabit (512K x 8) Single 2.7-volt ™ Battery-Voltage Flash Memory AT49BV040 AT49BV040T AT49LV040 AT49LV040T AT49BV/LV040 0679AX-A–9/97 1 ...
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... ERASURE: Before a byte can be reprogrammed, the 512K bytes memory array (or 496K bytes if the boot block featured is used) must be erased. The erased state of the memory bits is a logical “1”. The entire device can be erased at one time by using a 6-byte software code ...
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... Once the feature is enabled, the data in the boot block can no longer be erased or programmed. Data in the main memory block can still be changed through the regular pro- gramming method. To activate the lockout feature, a series of six program commands to specific addresses with spe- cific data must be performed. Please refer to the Com- mand Definitions table ...
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Command Definition (in Hex) Command Bus Sequence Cycles Addr Read 1 Addr Chip Erase 6 5555 Byte Program 4 5555 (1) Boot Block Lockout 6 5555 Product ID Entry 3 5555 (2) Product ID Exit 3 5555 (2) Product ID ...
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DC and AC Operating Range Operating Temperature (Case) V Power Supply CC Operating Modes Mode Read (2) Program Standby/Write Inhibit Program Inhibit Program Inhibit Output Disable Product Identification Hardware (5) Software Notes can ...
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AC Read Characteristics Symbol Parameter t Address to Output Delay ACC ( Output Delay CE ( Output Delay OE (3)( Output Float DF Output Hold from OE ...
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AC Byte 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 ...
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Program Cycle Characteristics Symbol Parameter t Byte Programming Time BP t Address Set-up Time AS t Address Hold Time AH t Data Set-up Time DS t Data Hold Time DH t Write Pulse Width WP t Write Pulse Width High ...
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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 spec ...
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Software Product (1) Identification Entry LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA 90 TO ADDRESS 5555 LOAD DATA AA TO ADDRESS 5555 ENTER PRODUCT IDENTIFICATION (2)(3)(4) MODE Software Product (1) Identification Exit OR ...
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... Plastic Thin Small Outline Package (TSOP 42C1 42-Ball, Plastic Chip-Scale Ball Grid Array (CBGA Ordering Code Package AT49BV040-15CC 42C1 AT49BV040-15JC 32J AT49BV040-15TC 32T AT49BV040-15VC 32V AT49BV040-15CI 42C1 AT49BV040-15JI 32J AT49BV040-15TI 32T AT49BV040-15VI 32V AT49BV040-20CC 42C1 AT49BV040-20JC 32J AT49BV040-20TC ...
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Ordering Information I (mA ACC (ns) Active Standby 150 25 0.05 25 0.05 200 25 0.05 25 0.05 150 25 0.05 25 0.05 200 25 0.05 25 0.05 32J 32-Lead, Plastic J-Leaded Chip Carrier Package (PLCC) 32T 32-Lead, ...