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Os motores de busca de Datasheet de Componentes eletrônicos |
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Os motores de busca de Datasheet de Componentes eletrônicos |
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HD64F2149YV Folha de dados(PDF) 812 Page - Renesas Technology Corp |
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HD64F2149YV Folha de dados(HTML) 812 Page - Renesas Technology Corp |
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812 / 1075 page  Section 25 Electrical Characteristics Rev. 3.00 Jan 18, 2006 page 784 of 1044 REJ09B0280-0300 25.3.3 Bus Timing Table 25.7 shows the bus timing. Operation in external expansion mode is not guaranteed when operating on the subclock ( φ = 32.768 kHz). Table 25.7 Bus Timing (1) (Normal Mode) Condition: V CC = 2.7 V to 3.6 V, VCCB = 2.7 V to 5.5 V, VSS = 0 V, φ = 2 MHz to maximum operating frequency, T a = –20 to +75°C Condition 10 MHz Item Symbol Min Max Unit Test Conditions Address delay time t AD — 40 ns Address setup time t AS 0.5 × t cyc – 30 — ns Figure 25.9 to figure 25.13 Address hold time t AH 0.5 × t cyc – 20 — ns CS delay time (IOS)t CSD — 40 ns AS delay time t ASD — 60 ns RD delay time 1 t RSD1 — 60 ns RD delay time 2 t RSD2 — 60 ns Read data setup time t RDS 35 — ns Read data hold time t RDH 0 — ns Read data access time 1 t ACC1 — 1.0 × t cyc – 60 ns Read data access time 2 t ACC2 — 1.5 × t cyc – 50 ns Read data access time 3 t ACC3 — 2.0 × t cyc – 60 ns Read data access time 4 t ACC4 — 2.5 × t cyc – 50 ns Read data access time 5 t ACC5 — 3.0 × t cyc – 60 ns WR delay time 1 t WRD1 — 60 ns WR delay time 2 t WRD2 — 60 ns WR pulse width 1 t WSW1 1.0 × t cyc – 40 — ns WR pulse width 2 t WSW2 1.5 × t cyc – 40 — ns Write data delay time t WDD — 60 ns Write data setup time t WDS 0 — ns Write data hold time t WDH 20 — ns WAIT setup time t WTS 60 — ns WAIT hold time t WTH 10 — ns |
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