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CAT93C76VE-GT2 Datasheet(PDF) 3 Page - ON Semiconductor |
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CAT93C76VE-GT2 Datasheet(HTML) 3 Page - ON Semiconductor |
3 / 12 page CAT93C76 http://onsemi.com 3 Table 5. INSTRUCTION SET (Note 6) Instruction Start Bit Opcode Address Data Comments x8 x16 x8 x16 READ 1 10 A10−A0 A9−A0 Read Address AN– A0 ERASE 1 11 A10−A0 A9−A0 Clear Address AN– A0 WRITE 1 01 A10−A0 A9−A0 D7−D0 D15−D0 Write Address AN– A0 EWEN 1 00 11XXXXXXXXX 11XXXXXXXX Write Enable EWDS 1 00 00XXXXXXXXX 00XXXXXXXX Write Disable ERAL 1 00 10XXXXXXXXX 10XXXXXXXX Clear All Addresses WRAL 1 00 01XXXXXXXXX 01XXXXXXXX D7−D0 D15−D0 Write All Addresses 6. Address bit A10 for the 1,024x8 org. and A9 for the 512x16 org. are “don’t care” bits, but must be kept at either a “1” or “0” for READ, WRITE and ERASE commands. Table 6. A.C. CHARACTERISTICS Symbol Parameter Test Conditions Limits Units VCC = 1.8 V − 2.5 V VCC = 2.5 V − 5.5 V Min Max Min Max tCSS CS Setup Time 100 50 ns tCSH CS Hold Time 0 0 ns tDIS DI Setup Time 100 50 ns tDIH DI Hold Time 100 50 ns tPD1 Output Delay to 1 250 150 ns tPD0 Output Delay to 0 CL = 100 pF (Note 7) 250 150 ns tHZ (Note 8) Output Delay to High−Z 150 100 ns tEW Program/Erase Pulse Width 5 5 ms tCSMIN Minimum CS Low Time 200 150 ns tSKHI Minimum SK High Time 250 150 ns tSKLOW Minimum SK Low Time 250 150 ns tSV Output Delay to Status Valid 250 100 ns SKMAX Maximum Clock Frequency DC 1000 DC 3000 kHz 7. The input levels and timing reference points are shown in the “AC Test Conditions” table. 8. These parameters are tested initially and after a design or process change that affects the parameter. Table 7. POWER−UP TIMING (Notes 8, 9) Symbol Parameter Max Units tPUR Power−up to Read Operation 1 ms tPUW Power−up to Write Operation 1 ms 9. tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated. Table 8. A.C. TEST CONDITIONS Input Rise and Fall Times ≤ 50 ns Input Pulse Voltages 0.4 V to 2.4 V 4.5 V v VCC v 5.5 V Timing Reference Voltages 0.8 V, 2.0 V 4.5 V v VCC v 5.5 V Input Pulse Voltages 0.2 VCC to 0.7 VCC 1.8 V v VCC v 4.5 V Timing Reference Voltages 0.5 VCC 1.8 V v VCC v 4.5 V |
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