16 Mbit Concurrent SuperFlash + 2/4/8 Mbit SRAM ComboMemory
SST34HF1602C / SST34HF1622C / SST34HF1642C
SST34HF1642D / SST34HF1682D / SST34HF1622S / SST34HF1642S
Advance Information
TABLE 5: OPERATIONAL MODES SELECTION FOR X8 SRAM
,
DQ15-8
Mode
BEF#1 BES1#1 2
BES21,2 OE#2 WE#2 SA2
DQ7-0
CIOF = VIH
CIOF = VIL
HIGH-Z
Full Standby
VIH
VIH
VIL
VIL
VIL
VIL
VIH
X
X
X
X
X
X
X
X
HIGH-Z
HIGH-Z
VIL
VIH
VIH
X
Output Disable
VIL
VIL
VIH
X
VIH
X
VIH
X
X
HIGH-Z
HIGH-Z
DOUT
DIN
HIGH-Z
HIGH-Z
DOUT
DIN
HIGH-Z
HIGH-Z
VIH
X
VIH
VIH
VIL
X
Flash Read
Flash Write
Flash Erase
VIH
X
VIL
VIH
VIH
VIH
VIL
VIL
X
X
X
DQ14-8 = HIGH-Z
DQ15 = A-1
VIL
X
VIH
X
DQ14-8 = HIGH-Z
DQ15 = A-1
VIL
X
VIH
X
X
X
X
VIL
VIH
VIH
VIL
SRAM Read
SRAM Write
VIH
VIH
VIL
VIL
VIL
VIH
VIL
X
VIH
VIL
VIH
SA
SA
X
DOUT
DIN
Manufacturer’s ID4
Device ID4
HIGH-Z
HIGH-Z
HIGH-Z
HIGH-Z
Product
VIL
Manufacturer’s ID4
Device ID4
Identification3
T5.0 1256
1. Do not apply BEF# = VIL, BES1# = VIL and BES2 = VIH at the same time
2. X can be VIL or VIH, but no other value.
3. Software mode only
4. With A19-A18 = VIL;SST Manufacturer’s ID = BFH, is read with A0=0,
SST34HF16x2C/D/S Device ID = 734AH, is read with A0=1, for x8 A-1 will not be part of the Device ID
TABLE 6: OPERATIONAL MODES SELECTION FOR 0 MBIT SRAM: SST34HF1602C
DQ15-8
,
,
Mode
BEF#
OE#1 2
WE#1 2
DQ7-0
CIOF = VIH
CIOF = VIL
Full Standby
VIH
X
X
X
X
HIGH-Z
HIGH-Z
HIGH-Z
HIGH-Z
HIGH-Z
Output Disable
VIH
VIH
X
VIH
X
HIGH-Z
HIGH-Z
VIL
VIL
VIH
VIL
VIH
VIH
HIGH-Z
DOUT
HIGH-Z
DOUT
Flash Read
Flash Write
Flash Erase
DQ14-8 = HIGH-Z
DQ15 = A-1
VIL
VIH
VIL
DIN
X
DIN
X
DQ14-8 = HIGH-Z
DQ15 = A-1
VIL
VIL
VIH
VIL
VIL
VIH
X
Product
Identification3
Manufacturer’s ID4
Manufacturer’s ID4
Device ID4
Device ID4
T6.0 1256
1. X can be VIL or VIH, but no other value.
2. OE# = OEF#, WE# = WEF#
3. Software mode only
4. With A19-A18 = VIL;SST Manufacturer’s ID = BFH, is read with A0=0,
SST34HF1602C Device ID = 734AH, is read with A0=1, for x8 A-1 will not be part of the Device ID
©2004 Silicon Storage Technology, Inc.
S71256-00-000
3/04
13
SST [ SILICON STORAGE TECHNOLOGY, INC ]
