AT28C040-20FI ATMEL [ATMEL Corporation], AT28C040-20FI Datasheet
AT28C040-20FI
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AT28C040-20FI Summary of contents
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... Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers access times to 200 ns with power dissipation of just 440 mW. The AT28C040 is accessed like a static RAM for the read or write cycle without the need for external components. The device contains a 256-byte page register to allow writing 256 bytes simultaneously ...
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... Data Inputs/Outputs NC No Connect 2.1 44-lead LCC – Top View A12 AT28C040 2 2.2 48-lead TSOP – Top View A11 A9 A8 A13 A14 A17 WE VCC A18 A16 A15 A12 ...
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... Maximum Ratings” may cause permanent dam- age to the device. This is a stress rating only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. + 0.6V CC AT28C040 3 ...
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... Read The AT28C040 is accessed like a static RAM. When CE and OE are low and WE is high, the data stored at the memory location determined by the address pins is asserted on the outputs. The outputs are put in the high impedance state when either high. This dual-line control gives designers flexibility in preventing bus contention in their systems ...
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... After writing the 3-byte command sequence and after t protected against inadvertent write operations. It should be noted that once protected, the host can still perform a byte or page write to the AT28C040 so, the same 3-byte command sequence used to enable SDP must precede the data to be written. ...
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... Condition I MHz OUT -400 µ -100 µ 4. AT28C040-20 Operation Read Program -40°C - 85°C -40°C - 85°C 5V ± 10 Min Max 0.8 2.0 0.45 2.4 4.2 0542E–PEEPR–1/08 I/O D ...
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... This parameter is characterized and is not 100% tested. 0542E–PEEPR–1/08 (1)(2)(3)( after the address transition without impact on t ACC after the falling edge of CE without impact pF). L Max 10 12 AT28C040 AT28C040-20 Min Max 200 200 ACC after an address change CE ACC ...
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... Chip Select Set-up Time CS t Chip Select Hold Time CH t Write Pulse Width ( Data Set-up Time Data, OE Hold Time DH OEH 15. AC Write Waveforms 15.1 WE Controlled 15.2 CE Controlled AT28C040 8 Min Max Units 100 0542E–PEEPR–1/08 ...
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... Page Mode Write Waveforms Notes through A18 must specify the page address during each high to low transition of WE (or CE must be high only when WE and CE are both low. 0542E–PEEPR–1/08 Min 100 50 (1)(2) AT28C040 Max Units µs 150 ns ...
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... A0 - A14 must conform to the addressing sequence for the first 3 bytes as shown above. 2. After the command sequence has been issued and a page write operation follows, the page address inputs (A8 - A18) must be the same for each high to low transition of WE (or CE must be high only when WE and CE are both low. AT28C040 10 19. Software Data (1) ...
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... 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. 0542E–PEEPR–1/08 (1) (1) (1)(2)(3) AT28C040 Min Typ Max Min Typ ...
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... CC ACC (ns) Active Ordering Code AT28C040-20TI 50 AT28C040-20FI AT28C040-20LI 200 AT28C040-20FI SL703 50 AT28C040-20LI SL703 Note: 1. See Valid Part Numbers. 26. Valid Part Numbers The following table lists standard Atmel products that can be ordered. Device Numbers Speed AT28C040 20 48T 48-Lead, Plastic Thin Small Outline Package (TSOP) ...
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... Orchard Parkway San Jose, CA 95131 R 0542E–PEEPR–1/08 PIN SEATING PLANE A1 TITLE 48T, 48-lead ( Package) Plastic Thin Small Outline Package, Type I (TSOP) AT28C040 0º ~ 8º GAGE PLANE COMMON DIMENSIONS (Unit of Measure = mm) MIN NOM MAX SYMBOL A – ...
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... Controlling dimension: Inches. JEDEC Outline MO-115 AA PIN #1 ID 21.08(0.830) 20.60(0.811) 12.40(0.488) 11.99(0.472) 0.18(0.007) 0.10(0.004) 10.36(0.408) 9.02(0.355) 2325 Orchard Parkway San Jose, CA 95131 R AT28C040 14 1.83(0.072) 0.76(0.030) TITLE 32F, 32-lead, Non-windowed, Ceramic Bottom-brazed Flat Package (FlatPack) 9.40(0.370) 6.86(0.270) 0.51(0.020) 0.38(0.015) 1.27(0.050) BSC 1.14(0.045) MAX 3.05(0.120) 2 ...
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... PIN 1 1.40(0.055) 1.14(0.045) 2.41(0.095) 1.91(0.075) 12.70(0.500) BSC TITLE 44L, 44-pad (0.600" Wide), Non-windowed, Ceramic Lid, Leadless Chip Carrier (LCC) AT28C040 2.74(0.108) 2.16(0.085) 2.03(0.080) 1.40(0.055) INDEX CORNER 0.635(0.025) X 45˚ 0.381(0.015) 0.305(0.012) RADIUS 0.178(0.007) ...
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Headquarters Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131 USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to ...