AT28HC64B-12JU Atmel, AT28HC64B-12JU Datasheet
AT28HC64B-12JU
Specifications of AT28HC64B-12JU
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AT28HC64B-12JU Summary of contents
Page 1
... When the device is deselected, the CMOS standby current is less than 100 µA. The AT28HC64B 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 ...
Page 2
... Exposure to absolute maximum rating conditions for extended periods may affect device reliability + 0 Condition MHz OUT -400 µA OH AT28HC64B AT28HC64B-120 -40°C - 85° ±10 OUT High High Z V High Z IL Min Max Units 10 µA 10 µA (1) 100 µA (1) ...
Page 3
... AT28HC64B-70 AT28HC64B-90 Min Max Min (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 AT28HC64B-120 Max Min Max 90 120 90 120 OUTPUT VALID . ACC after an address change CE ACC OE Units ...
Page 4
... 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 < Max Units AT28HC64B Conditions OUT 7 ...
Page 5
... 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 AT28HC64B 8 t OES OES Min Max 100 ...
Page 6
... Page Mode Characteristics Symbol Parameter t Write Cycle Time WC t Write Cycle Time (Use AT28HC64BF Address Setup Time AS t Address Hold Time AH t Data Setup Time DS t Data Hold Time DH t Write Pulse Width WP t Byte Load Cycle Time BLC t Write Pulse Width High WPH 17 ...
Page 7
... 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) See “AC Read Characteristics” on page 6. t OEH t OE (1) (1)(2)(3) t OEH AT28HC64B Min Typ Max Min Typ Max 10 10 150 0 t ...
Page 8
... AT28HC64B-90TI AT28HC64B-12JI AT28HC64B-12PI AT28HC64B-12SI AT28HC64B-12TI Ordering Code AT28HC64B-70TU AT28HC64B-70JU AT28HC64B-70SU AT28HC64B-90JU AT28HC64B-90PU AT28HC64B-90SU AT28HC64B-90TU AT28HC64B-12JU AT28HC64B-12SU Package Type Package and Temperature Combinations JI, PI, SI, TI, TU, JU, SU JI, JU, PI, PU, SI, SU, TI, TU JI, JU, PI, PU, SI, SU, TI, TU AT28HC64B Package Operation Range 32J 28P6 28S 28T ...
Page 9
... Allowable protrusion is .010"(0.254 mm) per side. Dimension D1 and E1 include mold mismatch and are measured at the extreme material condition at the upper or lower parting line. 3. Lead coplanarity is 0.004" (0.102 mm) maximum. 2325 Orchard Parkway San Jose, CA 95131 R AT28HC64B 14 1.14(0.045) X 45˚ PIN NO. 1 IDENTIFIER E1 E ...