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SST25LF040  FEATURES:
* Single 3.0-3.6V Read and Write Operations
* Serial Interface Architecture
- SPI Compatible: Mode 0 and Mode 3
* 33 MHz Max Clock Frequency
* Superior Reliability
- Endurance: 100,000 Cycles (typical)
- Greater than 100 years Data Retention
* Low Power Consumption:
- Active Read Current: 7 mA (typical)
- Standby Current: 8 *A (typical)
* Flexible Erase Capability
- Uniform 4 KByte sectors
- Uniform 32 KByte overlay blocks
* Fast Erase and Byte-Program:
- Chip-Erase Time: 70 ms (typical)
- Sector- or Block-Erase Time: 18 ms (typical)
- Byte-Program Time: 14 *s (typical)
* Auto Address Increment (AAI) Programming
-Decrease total chip programming time over
Byte-Program operations
* End-of-Write Detection
- Software Status
* Hold Pin (HOLD#)
- Suspends a serial sequence to the memory  without deselecting the device
* Write Protection (WP#)
- Enables/Disables the Lock-Down function of the status register
* Software Write Protection
- Write protection through Block-Protection bits in status register
* Temperature Range
- Commercial: 0?C to  70?C
- Industrial: -40?C to  85?C
- Extended: -20?C to  85?C
* Packages Available
- 8-lead SOIC 150 mil body width for SST25LF020A or SST25LF040
- 8-lead SOIC 200 mil body width for SST25LF040A
- 8-contact WSON (5mm x 6mm)
* All non-Pb (lead-free) devices are RoHS compliant



以下是关于SST89E58RD2芯片的基本特性，仅供各位参考：

FEATURES:
? 8-bit 8051-Compatible Microcontroller (MCU)
with Embedded SuperFlash Memory
– Fully Software Compatible
– Development Toolset Compatible
– Pin-For-Pin Package Compatible
SST89E5xxRD2 Operation
– 0 to 40 MHz at 5V
SST89V5xxRD2 Operation
– 0 to 33 MHz at 3V
1 KByte Internal RAM
Dual Block SuperFlash EEPROM
– 8/16/32/64 KByte primary block  
8 KByte secondary block
(128-Byte sector size for both blocks)
– Individual Block Security Lock with SoftLock
– Concurrent Operation during
In-Application Programming (IAP)
– Memory Overlay for Interrupt Support during IAP
Support External Address Range up to 64
KByte of Program and Data Memory
Three High-Current Drive Ports (16 mA each)
Three 16-bit Timers/Counters
Full-Duplex, Enhanced UART
– Framing Error Detection
– Automatic Address Recognition
Ten Interrupt Sources at 4 Priority Levels
– Four External Interrupt Inputs
Programmable Watchdog Timer (WDT)
Programmable Counter Array (PCA)
Four 8-bit I/O Ports (32 I/O Pins) and
One 4-bit Port
Second DPTR register
Low EMI Mode (Inhibit ALE)
SPI Serial Interface
Standard 12 Clocks per cycle, the device has an
option to double the speed to 6 clocks per cycle.
TTL- and CMOS-Compatible Logic Levels
Brown-out Detection
Low Power Modes
– Power-down Mode with External Interrupt Wake-up
– Idle Mode
Temperature Ranges:
– Commercial (0?C to  70?C)
– Industrial (-40?C to  85?C)
Packages Available
– 44-lead PLCC
– 40-pin PDIP (Port 4 feature not available)
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