SST34HF1621 Ver la hoja de datos (PDF) - Silicon Storage Technology
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SST34HF1621 Datasheet PDF : 32 Pages
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16 Mbit Concurrent SuperFlash + 2 / 4 Mbit SRAM ComboMemory
SST34HF1621 / SST34HF1641
Data Sheet
TABLE 3: OPERATIONAL MODES SELECTION1
Mode
BEF# BES1# BES22 CIOs3 OE# WE# SA
Full Standby
VIH
VIH
X
X
X
X
X
X
VIL
X
X
X
X
Output Disable VIH
VIL
VIH
X
VIH
VIH
X
VIL
VIH
VIH
X
X
X
VIL
VIH
X
X
VIH
VIH
X
X
VIL
Flash Read
VIL
VIH
X
X
VIL
VIH
X
X
VIL
Flash Write
VIL
VIH
X
X
VIH
VIL
X
X
VIL
Flash Erase
VIL
VIH
X
X
VIH
VIL
X
X
VIL
SRAM Read
VIH
VIL
VIH
VIH
VIL
VIH
X
VIH
VIL
VIH
VIL
VIL
VIH
SA
SRAM Write
VIH
VIL
VIH
VIH
X
VIL
X
VIH
VIL
VIH
VIL
X
VIL
SA
Product
VIL
VIH
X
Identification4
X
VIL
X
VIL
VIH
X
1. X can be VIL or VIH, but no other value.
2. Do not apply BEF# = VIL, BES1# = VIL and BES2 = VIH at the same time
3. SRAM I/O configuration input CIOs; VIH = x16 (word mode), VIL = x8 (byte mode)
4. Software mode only
5. With A19-A1 = 0; SST Manufacturer’s ID = 00BFH, is read with A0 = 0,
SST34HF1621/1641 Device ID = 2761H, is read with A0 = 1
LBS#
X
X
X
VIH
X
UBS#
X
X
X
VIH
X
DQ0-7
HIGH-Z
HIGH-Z
HIGH-Z
DQ8-15
HIGH-Z
HIGH-Z
HIGH-Z
X
X
DOUT
DOUT
X
X
DIN
DIN
X
X
X
X
VIL
VIL
DOUT
DOUT
VIH
VIL HIGH-Z DOUT
VIL
VIH
DOUT HIGH-Z
X
X
DOUT HIGH-Z
VIL
VIL
DIN
DIN
VIH
VIL HIGH-Z
DIN
VIL
VIH
DIN
HIGH-Z
X
X
DIN
HIGH-Z
X
X
Manufacturer’s ID5
Device ID5
T3.6 523
©2001 Silicon Storage Technology, Inc.
8
S71172-05-000 10/01 523
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