SST26WF040B/040BA
SST26WF080B/080BA
1.8V 4 Mbit and 8 Mbit Serial Quad I/O (SQI) Flash Memory
• Security ID
Features
- One-Time Programmable (OTP) 2 KByte,
Secure ID
• Single Voltage Read and Write Operations
- 1.65-1.95V
- 64 bit unique, factory pre-programmed identifier
- User-programmable area
• Serial Interface Architecture
• Temperature Range
- Mode 0 and Mode 3
- Industrial: -40°C to +85°C
• Packages Available
- Nibble-wide multiplexed I/O’s with SPI-like serial
command structure
- x1/x2/x4 Serial Peripheral Interface (SPI) Protocol
- 8-contact WDFN (6mm x 5mm)
- 8-lead SOIC (150 mil)
- 8-contact USON (2mm x 3mm)
- 8-ball XFBGA (Z-Scale™)
• High Speed Clock Frequency
- 104 MHz max
• Burst Modes
• All devices are RoHS compliant
- Continuous linear burst
- 8/16/32/64 Byte linear burst with wrap-around
Product Description
• Superior Reliability
- Endurance: 100,000 Cycles (min)
- Greater than 100 years Data Retention
The Serial Quad I/O™ (SQI™) family of flash-memory
devices features a six-wire, 4-bit I/O interface that allows for
low-power, high-performance operation in a low pin-count
package. SST26WF040B/040BA and SST26WF080B/
080BA also support full command-set compatibility to tradi-
tional Serial Peripheral Interface (SPI) protocol. System
designs using SQI flash devices occupy less board space
and ultimately lower system costs.
• Low Power Consumption:
- Active Read current: 15 mA (typical @ 104 MHz)
- Standby current: 10 µA (typical)
- Deep Power-Down current: 1.8 µA (typical)
• Fast Erase Time
- Sector/Block Erase: 18 ms (typ), 25 ms (max)
- Chip Erase: 35 ms (typ), 50 ms (max)
All members of the 26 Series, SQI family are manufactured
with proprietary, 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.
• Page-Program
- 256 Bytes per page in x1 or x4 mode
• End-of-Write Detection
- Software polling the BUSY bit in status register
• Flexible Erase Capability
The SST26WF040B/040BA and SST26WF080B/
080BA significantly improves performance and reliabil-
ity, while lowering power consumption. This device
writes (Program or Erase) with a single power supply of
1.65-1.95V. 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 memory technologies.
- Uniform 4 KByte sectors
- Four 8 KByte top and bottom parameter overlay
blocks
- One 32 KByte top and bottom overlay block
- Uniform 64 KByte overlay blocks
• Write-Suspend
- Suspend Program or Erase operation to access
another block/sector
• Software Reset (RST) mode
• Software Write Protection
SST26WF040B/040BA and SST26WF080B/080BA is
offered in 8-contact WDFN (6 mm x 5 mm), 8-lead SOIC
(150 mil), 8-contact USON, and 8-ball XFBGA (Z-Scale™)
packages. See Figure 2-1 for pin assignments.
- Individual-Block Write Protection with permanent
lock-down capability
- 64 KByte blocks, two 32 KByte blocks, and
eight 8 KByte parameter blocks
Two configurations are available upon order:
SST26WF040B and SST26WF080B default at power-
up has the WP# and Hold# pins enabled and
SST26WF040BA and SST26WF080BA default at
power-up has the WP# and Hold# pins disabled.
- Read Protection on top and bottom 8 KByte
parameter blocks
2014-2017 Microchip Technology Inc.
DS20005283C-page 1