1 Mbit / 2 Mbit / 4 Mbit (x8) Multi-Purpose Flash
SST39SF010A / SST39SF020A / SST39SF040
Data Sheet
The SST39SF010A / SST39SF020A / SST39SF040 are CMOS Multi-Purpose
Flash (MPF) devices manufactured with SST proprietary, high performance
CMOS SuperFlash technology. The split-gate cell design and thick oxide tunnel-
ing injector attain better reliability and manufacturability compared with alternate
approaches. The SST39SF010A / SST39SF020A / SST39SF040 write (Program
or Erase) with a 4.5-5.5V power supply, and conforms to JEDEC standard pinouts
for x8 memories
Features
• Organized as 128K x8 / 256K x8 / 512K x8
• Single 4.5-5.5V Read and Write Operations
• Superior Reliability
– Endurance: 100,000 Cycles (typical)
– Greater than 100 years Data Retention
• Fast Erase and Byte-Program
– Sector-Erase Time: 18 ms (typical)
– Chip-Erase Time: 70 ms (typical)
– Byte-Program Time: 14 µs (typical)
– Chip Rewrite Time:
• Low Power Consumption
(typical values at 14 MHz)
– Active Current: 10 mA (typical)
– Standby Current: 30 µA (typical)
2 seconds (typical) for SST39SF010A
4 seconds (typical) for SST39SF020A
8 seconds (typical) for SST39SF040
• End-of-Write Detection
– Toggle Bit
– Data# Polling
• Sector-Erase Capability
– Uniform 4 KByte sectors
• TTL I/O Compatibility
• JEDEC Standard
– Flash EEPROM Pinouts and command sets
• Fast Read Access Time:
– 55 ns
– 70 ns
• Packages Available
– 32-lead PLCC
– 32-lead TSOP (8mm x 14mm)
– 32-pin PDIP
• Latched Address and Data
• Automatic Write Timing
– Internal V
PP
Generation
• All devices are RoHS compliant
©2002-2016
www.microchip.com
DS20005022C
04/16
1 Mbit / 2 Mbit / 4 Mbit Multi-Purpose Flash
SST39SF010A / SST39SF020A / SST39SF040
Data Sheet
Product Description
The SST39SF010A/020A/040 are CMOS Multi-Purpose Flash (MPF) manufactured with SST’s propri-
etary, high performance CMOS SuperFlash technology. The split-gate cell design and thick oxide tun-
neling injector attain better reliability and manufacturability compared with alternate approaches. The
SST39SF010A/020A/040 devices write (Program or Erase) with a 4.5-5.5V power supply. The
SST39SF010A/020A/040 devices conform to JEDEC standard pinouts for x8 memories.
Featuring high performance Byte-Program, the SST39SF010A/020A/040 devices provide a maximum
Byte-Program time of 20 µsec. These devices use Toggle Bit or Data# Polling to indicate the comple-
tion of Program operation. To protect against inadvertent write, they have on-chip hardware and Soft-
ware Data Protection schemes. Designed, manufactured, and tested for a wide spectrum of
applications, these devices are offered with a guaranteed typical endurance of 100,000 cycles. Data
retention is rated at greater than 100 years.
The SST39SF010A/020A/040 devices are suited for applications that require convenient and econom-
ical updating of program, configuration, or data memory. For all system applications, they significantly
improve performance and reliability, while lowering power consumption. They inherently use less
energy during erase and program than alternative flash technologies. The total energy consumed is a
function of the applied voltage, current, and time of application. Since for any given voltage range, the
SuperFlash technology uses less current to program and has a shorter erase time, the total energy
consumed during any Erase or Program operation is less than alternative flash technologies. These
devices also improve flexibility while lowering the cost for program, data, and configuration storage
applications.
The SuperFlash technology provides fixed Erase and Program times, independent of the number of
Erase/Program cycles that have occurred. Therefore the system software or hardware does not have
to be modified or de-rated as is necessary with alternative flash technologies, whose Erase and Pro-
gram times increase with accumulated Erase/Program cycles.
To meet high density, surface mount requirements, the SST39SF010A/020A/040 are offered in 32-lead
PLCC and 32-lead TSOP packages. A 600 mil, 32-pin PDIP is also available. See Figures 2, 3, and 4
for pin assignments.
©2002-2016
DS20005022C
04/16
2
1 Mbit / 2 Mbit / 4 Mbit Multi-Purpose Flash
SST39SF010A / SST39SF020A / SST39SF040
Data Sheet
Block Diagram
X-Decoder
SuperFlash
Memory
Memory Address
Address Buffers & Latches
Y-Decoder
CE#
OE#
WE#
DQ
7
- DQ
0
1147 B1.2
Control Logic
I/O Buffers and Data Latches
Figure 1:
Functional Block Diagram
©2002-2016
DS20005022C
04/16
3
1 Mbit / 2 Mbit / 4 Mbit Multi-Purpose Flash
SST39SF010A / SST39SF020A / SST39SF040
Data Sheet
Pin Assignment
SST39SF040
WE#
WE#
WE#
VDD
A12
A15
A16
A18
SST39SF020A
VDD
A12
A15
A16
SST39SF010A
VDD
A12
A15
A16
NC
SST39SF040 SST39SF020A SST39SF010A
NC
SST39SF010A SST39SF020A
A17
NC
A17
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
SST39SF020A SST39SF010A
5
6
7
8
9
10
11
12
13
4
3
2
1
32 31 30
29
28
27
26
25
24
23
22
SST39SF040
A14
A13
A8
A9
A11
OE#
A10
CE#
DQ7
A14
A13
A8
A9
A11
OE#
A10
CE#
DQ7
A14
A13
A8
A9
A11
OE#
A10
CE#
DQ7
32-lead PLCC
Top View
21
14 15 16 17 18 19 20
DQ1
DQ2
VSS
DQ3
DQ4
DQ5
DQ6
1147 32-plcc P2.4
DQ1
DQ2
VSS
DQ3
DQ4
DQ5
DQ5
SST39SF040
DQ1
DQ2
VSS
DQ3
DQ4
Figure 2:
Pin Assignments for 32-lead PLCC
©2002-2016
DQ6
DQ6
DS20005022C
04/16
4
1 Mbit / 2 Mbit / 4 Mbit Multi-Purpose Flash
SST39SF010A / SST39SF020A / SST39SF040
Data Sheet
SST39SF040 SST39SF020A
A11
A9
A8
A13
A14
A17
WE#
VDD
A18
A16
A15
A12
A7
A6
A5
A4
A11
A9
A8
A13
A14
A17
WE#
VDD
NC
A16
A15
A12
A7
A6
A5
A4
SST39SF010A
A11
A9
A8
A13
A14
NC
WE#
VDD
NC
A16
A15
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SST39SF010A
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
VSS
DQ2
DQ1
DQ0
A0
A1
A2
A3
SST39SF020A
OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
VSS
DQ2
DQ1
DQ0
A0
A1
A2
A3
1147 32-tsop P1.1
SST39SF040
OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
VSS
DQ2
DQ1
DQ0
A0
A1
A2
A3
Standard Pinout
Top View
Die Up
Figure 3:
Pin Assignments for 32-lead TSOP (8mm x 14mm)
SST39SF040 SST39SF020A SST39SF010A
SST39SF010A SST39SF020A
SST39SF040
A18
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
NC
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
NC
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
VSS
1
2
3
4
5
32-pin
6
PDIP
7
8
Top View
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VDD
WE#
NC
A14
A13
A8
A9
A11
OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
VDD
WE#
A17
A14
A13
A8
A9
A11
OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
VDD
WE#
A17
A14
A13
A8
A9
A11
OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
1147 32-pdip P3.2
Figure 4:
Pin Assignments for 32-pin PDIP
©2002-2016
DS20005022C
04/16
5
