AT28C64B-15PU Atmel, AT28C64B-15PU Datasheet
AT28C64B-15PU
Specifications of AT28C64B-15PU
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AT28C64B-15PU Summary of contents
Page 1
... When the device is deselected, the CMOS standby current is less than 100 µA. 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 ...
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... GND 14 15 2.2 32-lead PLCC Top View I/O0 13 Note: PLCC package pins 1 and 17 are Don’t Connect. AT28C64B 2 Function Addresses Chip Enable Output Enable Write Enable Data Inputs/Outputs No Connect Don’t Connect 2.3 OE VCC A11 A11 WE OE VCC A10 NC CE ...
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... Read The AT28C64B 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 ...
Page 4
... AT28C64B will be protected against inadvertent writes. It should be noted that even after SDP is enabled, the user may still perform a byte or page write to the AT28C64B by preceding the data to be written by the same 3-byte command sequence used to enable SDP. Once set, SDP remains active unless the disable command sequence is issued. Power transi- tions do not disable SDP, and SDP protects the AT28C64B during power-up and power-down conditions ...
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... Com., Ind 2. MHz OUT -400 µA OH AT28C64B AT28C64B-25 0°C - 70°C -40°C - 85°C 5V ±10 High High Z V High Z IL Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent dam- age to the device. This is a stress rating only and ...
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... Max 150 150 (1)(2)(3)(4) ADDRESS VALID ACC HIGH after the address transition without impact on t ACC after the falling edge of CE without impact pF). L AT28C64B-20 AT28C64B-25 Min Max Min 200 200 OUTPUT VALID . ACC after an address change CE ACC OE Max Units ...
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... Input Test Waveforms and Measurement Level 12. Output Test Load 13. Pin Capacitance ( MHz 25°C Symbol Typ OUT Note: 1. This parameter is characterized and is not 100% tested. 0270J–PEEPR–04/ < Max 6 12 AT28C64B Units Conditions OUT 7 ...
Page 8
... Chip Select Setup Time CS t Chip Select Hold Time CH t Write Pulse Width ( Data Setup Time Data, OE Hold Time DH OEH 15. AC Write Waveforms 15.1 WE Controlled OE ADDRESS CE WE DATA IN 15.2 CE Controlled OE ADDRESS WE CE DATA IN AT28C64B 8 t OES OES Min Max 100 ...
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... 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. 18. Chip Erase Waveforms (min 12.0V ±0.5V H 0270J–PEEPR–04/05 (1)(2) t WPH VALID ADD t DS VALID DATA µs (min.) AT28C64B Min Max 100 150 50 t BLC Units µ ...
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... A6 - A12 DATA 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 10 20. Software Data Protection Disable (2) Notes: t WPH ...
Page 11
... Beginning and ending state of I/O6 will vary. 3. Any address location may be used but the address should not vary. 0270J–PEEPR–04/05 (1) See “AC Read Characteristics” on page 6. t OEH t OE (1) (1)(2)( OEH OEHP AT28C64B Min Typ Max Min Typ Max 10 10 150 Units ...
Page 12
... Normalized I Graphs CC AT28C64B 12 0270J–PEEPR–04/05 ...
Page 13
... 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 Ordering Code AT28C64B-15JU AT28C64B-15SU AT28C64B-15TU Package Type AT28C64B Package Operation Range 32J 28P6 Commercial 28S (0°C to 70°C) ...
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... The following table lists standard Atmel products that can be ordered. Device Numbers Speed AT28C64B 15 AT28C64B 20 AT28C64B 25 AT28C64B – 29. Die Products Reference Section: Parallel EEPROM Die Products AT28C64B 14 Package and Temperature Combinations JC, JI, JU, PC, PI, SC, SI, SU, TC, TI, TU JC, JI, PC, PI, SC, SI, TC, TI JC, JI, PC, PI, SC, SI, TC 0270J–PEEPR–04/05 ...
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... Lead coplanarity is 0.004" (0.102 mm) maximum. 2325 Orchard Parkway San Jose, CA 95131 R 0270J–PEEPR–04/05 1.14(0.045) X 45˚ PIN NO. 1 IDENTIFIER TITLE 32J, 32-lead, Plastic J-leaded Chip Carrier (PLCC) AT28C64B 0.318(0.0125) 0.191(0.0075 COMMON DIMENSIONS (Unit of Measure = mm) MIN NOM MAX SYMBOL A 3.175 – ...
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... PDIP A SEATING PLANE Notes: 1. This package conforms to JEDEC reference MS-011, Variation AB. 2. Dimensions D and E1 do not include mold Flash or Protrusion. Mold Flash or Protrusion shall not exceed 0.25 mm (0.010"). 2325 Orchard Parkway San Jose, CA 95131 R AT28C64B 16 D PIN 0º ~ 15º REF eB TITLE 28P6, 28-lead (0.600" ...
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... PIN 1 1.27(0.50) BSC TOP VIEW 18.10(0.7125) 17.70(0.6969) 0.30(0.0118) 0.10(0.0040) 0º ~ 8º 1.27(0.050) 0.40(0.016) TITLE 28S, 28-lead, 0.300" Body, Plastic Gull Wing Small Outline (SOIC) JEDEC Standard MS-013 AT28C64B 10.65(0.419) 10.00(0.394) 2.65(0.1043) 2.35(0.0926) SIDE VIEWS 0.32(0.0125) 0.23(0.0091) DRAWING NO. 28S 8/4/03 REV ...
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... E Notes: 1. This package conforms to JEDEC reference MO-183. 2. Dimensions D1 and E do not include mold protrusion. Allowable protrusion 0.15 mm per side and 0.25 mm per side. 3. Lead coplanarity is 0.10 mm maximum. 2325 Orchard Parkway San Jose, CA 95131 R AT28C64B 18 PIN SEATING PLANE A1 TITLE 28T, 28-lead (8 x 13.4 mm) Plastic Thin Small Outline Package, Type I (TSOP) 0º ...
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... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...