SST39VF400A-70-4I-MAQE-T Microchip Technology, SST39VF400A-70-4I-MAQE-T Datasheet - Page 2

• Manufacturer Part Number: SST39VF400A-70-4I-MAQE-T
• Description: 2.7V To 3.6V 4Mbit Multi-Purpose Flash 48 WFBGA 4x6x0.8 Mm T/R
• Manufacturer: Microchip Technology
• Series: -r

Specifications of SST39VF400A-70-4I-MAQE-T

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 4M (256K x 16)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 2.7 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-WFBGA
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Application Note
SST AND AMD
Comparisons with the AMD Am29F series
AMD’s Am29F series includes 1M, 2M, and 4M devices;
the
respectively. AMD also has 1M, 2M, and 4M devices in
the Am29LV series - Am29LV010, Am29LV002, and
Am29LV040.
For the SST39SF series, the corresponding devices
offered are SST39SF010A (1M), SST39SF020A (2M), and
SST39SF040 (4M). For the SST39VF series, the corre-
sponding products offered are SST39VF010 (1M),
SST39VF020 (2M), and SST39VF040 (4M).
TABLE 2: V
Hardware Comparisons
The AMD devices - the Am29F010, the Am29F002N, and
the AM29F040 are offered in 32-pin PLCC, PDIP , and
TSOP (8mm x 20mm) packages.
• 1M Pinout Comparison
The SST39SF010A is fully pin compatible with the
Am29F010 in PLCC and PDIP packages. For TSOP pack-
ages, AMD has an 8mm x 20mm package, as opposed to
SST’s 8mm x 14mm package. Please refer to the applica-
tion note, Recommended Land Pattern for SST TSOP
Devices, which describes how to use both packages in the
same design.
Note that the same comparisons as above apply to the
Am29LV010 and the SST39VF010.
• 2M Pinout Comparison
AMD offers two 2M products - the Am29F002 and
Am29F002N. The Am29F002 has a RESET# pin, which is
a no-connect on the Am29F002N. Both products are
offered in 32-pin PDIP , PLCC, and TSOP (8mm x 20mm)
packages. The SST39SF020A is fully pin compatible with
the Am29F002N in PLCC and PDIP packages. In the case
of the Am29F002, the only difference between this device
and the SST39SF020A is the RESET# pin. The purpose of
RESET# on the Am29F002 is to terminate any operation in
progress because of long erase times and resetting the
internal state machine to reading array data. This pin is a
no-connect on the SST39SF020A. (Since SST39SF020A
Sector-Erase of 25 ms is 80 times faster than that of the
AM29F002, a reset pin is typically not needed for SST
©2005 Silicon Storage Technology, Inc.
5V
3V
Am29F010,
AMD
Am29F
Am29LV
OLTAGE
Am29F002(N),
C
OMPARISONS
SST
SST39SF
SST39VF
and
Multi-Purpose Flash (39 Series) Byte-wide Products
Am29F040,
T2.0 2014
2
devices.) The absence of this signal on the SST device
does not affect the normal operation of the SST device. As
a result, the SST39SF020A can be used in an Am29F002/
002N design without any modifications in board layout for
PLCC and PDIP designs.
For the Am29F002/002N TSOP packages, AMD has an
8mm x 20mm package as opposed to SST’s 8mm x 14mm
package. Please refer to the application note, Recom-
mended Land Pattern for SST TSOP Devices, which
describes how to use both packages in the same design.
Note that the same comparisons as above apply between
the Am29LV002 and the SST39VF020.
• 4M Pinout Comparison
The SST39SF040 is fully pin compatible with the
Am29F040 in PLCC and PDIP packages. For TSOP pack-
ages, AMD has an 8mm x 20mm package, as opposed to
SST’s 8mm x 14mm package. Please refer to the applica-
tion note, Recommended Land Pattern for SST TSOP
Devices, which describes how to use both packages in the
same design.
Note that the same comparisons as above apply between
the Am29LV040 and the SST39VF040.
Software Comparisons
The SST and AMD devices use the same command set for
Byte-Program, Chip-Erase, Read-ID and Reset operation
as described in the table below.
Note that although the following notes describe the differ-
ence between 5V flash from AMD and SST, identical com-
parisons are valid for describing the 3V flash from AMD
and SST. Also note that for the SDP command cycles,
AMD does not use any of the address bits as the standard
JEDEC command set e.g. AMD uses xxxxH, whereas SST
uses 5555H.
TABLE 3: C
Command
Byte-Program
Chip-Erase
Sector-Erase
Software Exit
ID/Reset
Read-ID
Erase-Suspend/
-Resume
OMMAND
SST
4-Byte
6-Byte
6-Byte (30H)
1-Byte
3-Byte
Not required
S
EQUENCE
Designing In SST’s
AMD
Same
Same
6-Byte (30H) different
sector address
Same
Same
1-Byte sequence
C
OMPARISONS
S72014-04-000
T3.0 2014
10/05