ds42585 Advanced Micro Devices, ds42585 Datasheet - Page 8
ds42585
Manufacturer Part Number
ds42585
Description
Stacked Multi-chip Package Mcp Flash Memory And Sram
Manufacturer
Advanced Micro Devices
Datasheet
1.DS42585.pdf
(58 pages)
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PIN DESCRIPTION
A0–A18
A-1, A19–A20 = 3 Address Inputs (Flash)
SA
DQ0–DQ15
CE#f
CE#s
OE#
WE#
RY/BY#
UB#s
LB#s
CIOf
CIOs
RESET#
WP#/ACC
V
V
V
NC
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. The r egis ter is a l atch us ed to s tore th e
commands, along with the address and data informa-
tion needed to execute the command. The contents of
8
CC
CC
SS
f
s
Order Number
DS42585
= 19 Address Inputs (Common)
= Highest Order Address Pin (SRAM)
= 16 Data Inputs/Outputs (Common)
= Chip Enable (Flash)
= Chip Enable (SRAM)
= Output Enable (Common)
= Write Enable (Common)
= Ready/Busy Output
= Upper Byte Control (SRAM)
= Lower Byte Control (SRAM)
= I/O Configuration (Flash)
= I/O Configuration (SRAM)
= Hardware Reset Pin, Active Low
= Hardware Write Protect/
= Flash 3.0 volt-only single power sup-
= SRAM Power Supply
= Device Ground (Common)
= Pin Not Connected Internally
Byte mode
CIOf = V
CIOf = V
CIOs = V
CIOs = V
Acceleration Pin (Flash)
ply (see Product Selector Guide for
speed options and voltage supply
tolerances)
Valid Combination
IH
IL
IH
IL
= Byte mode (x8)
= Word mode (x16),
= Byte mode (x8)
= Word mode (x16),
Package Marking
DS42585
P R E L I M I N A R Y
DS42585
LOGIC SYMBOL
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.
19
SA
CE#f
CE1#s
CE2s
OE#
WE#
WP#/ACC
RESET#
UB#s
LB#s
CIOf
CIOs
A-1, A19–A20
A0–A18
DQ0–DQ15
RY/BY#
16 or 8
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