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PC48F4400PLVB0 数据表(PDF) 27 Page - Numonyx B.V |
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PC48F4400PLVB0 数据表(HTML) 27 Page - Numonyx B.V |
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27 / 102 page  November 2007 Datasheet Order Number: 290701-18 27 Numonyx™ Wireless Flash Memory (W18) Notes: 1. See Figure 20, “AC Input/Output Reference Waveform” on page 44 for timing measurements and maximum allowable input slew rate. 2. AC specifications assume the data bus voltage is less than or equal to VCCQ when a read operation is initiated. 3. Address hold in synchronous-burst mode is defined as tCHAX or tVHAX, whichever timing specification is satisfied first. 4. OE# may be delayed by up to tELQV– tGLQV after the falling edge of CE# without impact to tELQV. 5. Sampled, not 100% tested. 6. Applies only to subsequent synchronous reads. 7. During the initial access of a synchronous burst read, data from the first word may begin to be driven onto the data bus as early as the first clock edge after tAVQV. 8. All the preceding specifications apply to all densities. Synchronous Specifications R301 tAVCH Address Valid Setup to CLK 7 - ns R302 tVLCH ADV# Low Setup to CLK 7 - ns R303 tELCH CE# Low Setup to CLK 7 - ns R304 tCHQV CLK to Output Valid - 11 ns 8 R305 tCHQX Output Hold from CLK 3 - ns R306 tCHAX Address Hold from CLK 7 - ns 3 R307 tCHTV CLK to WAIT Valid - 11 ns 8 Table 13: Read Operations — 90 nm (Sheet 2 of 2) # Symbol Parameter (1,2) VCCQ= 1.7 V – 1.95 V Unit Notes Min Max Table 14: Read Operations — 130 nm (Sheet 1 of 2) # Parameter (1,2) VCCQ= 1.7 V – 2.24 V Unit Notes -60 Min Max Asynchronous Specifications R1 tAVAV Read Cycle Time 60 - ns 7,8 R2 tAVQV Address to Output Valid - 60 ns 7,8 R3 tELQV CE# Low to Output Valid - 60 ns 7,8 R4 tGLQV OE# Low to Output Valid - 20 ns 4 R5 tPHQV RST# High to Output Valid - 150 ns R6 tELQX CE# Low to Output Low-Z 0 - ns 5 R7 tGLQX OE# Low to Output Low-Z 0 - ns 4,5 R8 tEHQZ CE# High to Output High-Z - 14 ns 5 R9 tGHQZ OE# High to Output High-Z - 14 ns 4,5 R10 tOH CE# (OE#) High to Output Low-Z 0 - ns 4,5 R11 tEHEL CE# Pulse Width High - 14 ns 6 R12 tELTV CE# Low to WAIT Valid - 11 ns 5,6 R13 tEHTZ CE# High to WAIT High-Z 14 - ns 6 Latching Specifications |
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