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SST32HF201-70-4E-L3K 데이터시트(PDF) 6 Page - Silicon Storage Technology, Inc

부품명 SST32HF201-70-4E-L3K
상세설명  Multi-Purpose Flash (MPF) SRAM ComboMemory
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제조업체  SST [Silicon Storage Technology, Inc]
홈페이지  http://www.sst.com/
Logo SST - Silicon Storage Technology, Inc

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Preliminary Specifications
Multi-Purpose Flash (MPF) + SRAM ComboMemory
SST32HF201 / SST32HF202 / SST32HF401 / SST32HF402
©2001 Silicon Storage Technology, Inc.
S71209-00-000
9/01
557
TABLE
2: PIN DESCRIPTION
Symbol
Pin Name
Functions
AMS1-A0
Address Inputs
To provide flash addresses,
A16-A0 for 2M and A17-A0 for 4M.
To provide SRAM addresses, A15-A0 for 1M and A16-A0 for 2M.
DQ15-DQ0
Data Input/output
To output data during Read cycles and receive input data during Write cycles.
Data is internally latched during a flash Erase/Program cycle.
The outputs are in tri-state when OE# or BES# and BEF# are high.
BES#
SRAM Memory Bank Enable
To activate the SRAM memory bank when BES# is low.
BEF#
Flash Memory Bank Enable
To activate the Flash memory bank when BEF# is low.
OE#
Output Enable
To gate the data output buffers.
WE#
Write Enable
To control the Write operations.
VDD
Power Supply
2.7-3.3V power supply
VSS
Ground
UBS#
Upper Byte Control (SRAM)
To enable DQ15-DQ8
LBS#
Lower Byte Control (SRAM)
To enable
DQ7-DQ0
NC
No Connection
Unconnected Pins
T2.0 557
1. AMS = Most significant address
TABLE
3: OPERATION MODES SELECTION
Mode
BES#1
1. Do not apply BES#=VIL and BEF#=VIL at the same time
BEF#1 OE# WE# UBS# LBS#
DQ15 to DQ8
DQ7 to DQ0
Address
Not Allowed
VIL
VIL
X2
2. X can be VIL or VIH, but no other value.
XX
X
X
X
X
Flash
Read
VIH
VIL
VIL
VIH
XX
DOUT
DOUT
AIN
Program
VIH
VIL
VIH
VIL
XX
DIN
DIN
AIN
Erase
X
VIL
VIH
VIL
X
X
X
X
Sector or Block address,
XXH for Chip-Erase
SRAM
Read
VIL
VIH
VIL
VIH
VIL
VIL
DOUT
DOUT
AIN
VIL
VIH
VIL
VIH
VIL
VIH
DOUT
High Z
AIN
VIL
VIH
VIL
VIH
VIH
VIL
High Z
DOUT
AIN
Write
VIL
VIH
XVIL
VIL
VIL
DIN
DIN
AIN
VIL
VIH
XVIL
VIL
VIH
DIN
High Z
AIN
VIL
VIH
XVIL
VIH
VIL
High Z
DIN
AIN
Standby
VIHC
VIHC
X
X
X
X
High Z
High Z
X
Flash Write Inhibit
X
X
VIL
XX
X
High Z / DOUT High Z / DOUT
X
XX
X
VIH
XX
High Z / DOUT High Z / DOUT
X
XVIH
XX
X
X
High Z / DOUT High Z / DOUT
X
Output Disable
VIH
VIL
VIH
VIH
X
X
High Z
High Z
X
VIL
VIH
XX
VIH
VIH
High Z
High Z
X
VIL
VIH
VIH
VIH
X
X
High Z
High Z
X
Product Identification
Software Mode
VIH
VIL
VIL
VIH
X
X
Manufacturer’s ID (00BFH)
Device ID3
3. Device ID for: SST32HF201/202 = 2789H and SST32HF401/402 = 2780H
AMSF4-A1=VIL, A0=VIH
(See Table 4)
4. AMS = Most significant flash address
T3.2 557


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