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AM29DL163D Datasheet(PDF) 8 Page - Advanced Micro Devices |
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AM29DL163D Datasheet(HTML) 8 Page - Advanced Micro Devices |
8 / 57 page 8 DS42546 PIN DESCRIPTION A0–A17 = 18 Address Inputs (Common) A–1, A18–A19 = 3 Address Inputs (Flash) SA = Highest Order Address Input (SRAM) Byte mode DQ0–DQ15 = 16 Data Inputs/Outputs (Common) CE#f = Chip Enable (Flash) CE#s = Chip Enable (SRAM) OE# = Output Enable (Common) WE# = Write Enable (Common) RY/BY# = Ready/Busy Output UB#s = Upper Byte Control (SRAM) LB#s = Lower Byte Control (SRAM) CIOf = I/O Configuration (Flash) CIOf = VIH = Word mode (x16), CIOf = VIL = Byte mode (x8) CIOs = I/O Configuration (SRAM) CIOs = VIH = Word mode (x16), CIOs = VIL = Byte mode (x8) RESET# = Hardware Reset Pin, Active Low WP#/ACC = Hardware Write Protect/ Acceleration Pin (Flash) VCCf = Flash 3.0 volt-only single power sup- ply (see Product Selector Guide for speed options and voltage supply tolerances) VCCs = SRAM Power Supply VSS = Device Ground (Common) NC = Pin Not Connected Internally LOGIC SYMBOL ORDERING INFORMATION DEVICE BUS OPERATIONS This section describes the requirements and use of the device bus operations, which are initiated through the internal command register. The command register itself does not occupy any addressable memory loca- tion. T he r egis ter is a l a tch us ed to s t ore th e commands, along with the address and data informa- tion needed to execute the command. The contents of the register serve as inputs to the internal state ma- chine. The state machine outputs dictate the function of the device. Tables 1 through 3 lists the device bus operations, the inputs and control levels they require, and the resulting output. The following subsections de- scribe each of these operations in further detail. 18 16 or 8 DQ0–DQ15 A0–A17 CE#f OE# WE# RESET# UB#s RY/BY# WP#/ACC SA A–1, A18–A19 LB#s CIOf CIOs CE1#s CE2s Valid Combination Order Number Package Marking DS42546 DS42546 |
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