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HM658512ALFP-8V Datasheet(PDF) 10 Page - Hitachi Semiconductor |
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HM658512ALFP-8V Datasheet(HTML) 10 Page - Hitachi Semiconductor |
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10 / 22 page  HM658512A Series 10 AC Characteristics (Ta = 0 to +70°C, V CC = 5 V ± 10%, unless otherwise noted.) Test Conditions • Input pulse levels: 0.4 V, 2.4 V • Input rise and fall time: 5 ns • Timing measurement level: 0.8 V, 2.2 V • Reference levels: V OH = 2.0 V, VOL = 0.8 V • Output load: 1 TTL Gate and C L (100 pF) (Including scope and jig) HM658512A -7 -8 -10 Parameter Symbol Min Max Min Max Min Max Unit Notes Random read or write cycle time t RC 115 — 130 — 160 — ns Chip enable access time t CEA — 70 — 80 — 100 ns Read-modify- write cycle time t RWC 160 — 180 — 220 — ns Output enable access time t OEA —25 — 30 —40 ns Chip disable to output in high-Z t CHZ 0 25 0 25 0 25 ns 1, 2 Chip enable to output in low-Z t CLZ 20 — 20 — 20 — ns 2 Output disable to output in high-Z t OHZ — 25 — 25 — 25 ns 1, 2 Output enable to output in low-Z t OLZ 0— 0 — 0— ns 2 Chip enable pulse width t CE 70 n 10 µ 80 n 10 µ 100 n 10 µ s Chip enable precharge time t P 35 — 40 — 50 — ns Address setup time t AS 0— 0 — 0— ns Address hold time t AH 20 — 20 — 25 — ns Read command setup time t RCS 0— 0 — 0— ns Read command hold time t RCH 0— 0 — 0— ns Write command pulse width t WP 25 — 25 — 30 — ns Chip enable to end of write t CW 70 — 80 — 100 — ns Chip enable to output enable delay time t OCD 0— 0 — 0— ns Output enable hold time t OHC 0— 0 — 0— ns |
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