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AS7C3364PFS32A 数据表(PDF) 4 Page - Alliance Semiconductor Corporation |
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AS7C3364PFS32A 数据表(HTML) 4 Page - Alliance Semiconductor Corporation |
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4 / 11 page  AS7C3364PFS32A AS7C3364PFS36A ® 2/1/01 Alliance Semiconductor P. 4 of 11 Synchronous truth table Key: X = Don’t Care, L = Low, H = High. 1See “Write enable truth table”on page 2 for more information. 2 Q in flow through mode. 3 For write operation following a READ, OE must be HIGH before the input data set up time and held HIGH throughout the input hold time. Recommended operating conditions CE0 CE1 CE2 ADSP ADSC ADV WEn 1 OE Address accessed CLK Operation DQ H XXX L X X X NA L to H Deselect Hi −Z LL X L X X X X NA L to H Deselect Hi −Z LL X H L X X X NA L to H Deselect Hi −Z LX H L X X X X NA L to H Deselect Hi −Z LX H H L X X X NA L to H Deselect Hi −Z L H L L X XXL External L to H Begin read Hi −Z2 LHL L X X X H External L to H Begin read Hi −Z LHLHL X F L External L to H Begin read Hi −Z2 LHLHL X F H External L to H Begin read Hi −Z XXX H H L F L Next L to H Cont. read Q XXX H H L F H Next L to H Cont. read Hi −Z XXX H H H F L Current L to H Suspend read Q XXX H H H F H Current L to H Suspend read Hi −Z H XXX H L F L Next L to H Cont. read Q H XXX H L F H Next L to H Cont. read Hi −Z H XXX H H F L Current L to H Suspend read Q H XXX H H F H Current L to H Suspend read Hi −Z LHLHL X T X External L to H Begin write D3 XXX H H L T X Next L to H Cont. write D H XXX H L T X Next L to H Cont. write D XXX H H H T X Current L to H Suspend write D H XXX H H T X Current L to H Suspend write D Parameter Symbol Min Nominal Max Unit Supply voltage VDD 3.135 3.3 3.6 V VSS 0.0 0.0 0.0 3.3V I/O supply voltage VDDQ 3.135 3.3 3.6 V VSSQ 0.0 0.0 0.0 2.5V I/O supply voltage VDDQ 2.35 2.5 2.9 V VSSQ 0.0 0.0 0.0 Input voltages† Address and control pins VIH 2.0 – VDD + 0.3 V VIL –0.5* * VIL min = –2.0V for pulse width less than 0.2 × tRC. † Input voltage ranges apply to 3.3V I/O operation. For 2.5V I/O operation, contact factory for input specifications. –0.8 I/O pins VIH 2.0 – VDDQ + 0.3 V VIL –0.5* –0.8 Ambient operating temperature TA 0– 70 °C |
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