SST89E58RD2-40-I-TQJE Microchip Technology, SST89E58RD2-40-I-TQJE Datasheet - Page 12

• Manufacturer Part Number: SST89E58RD2-40-I-TQJE
• Description: 4.5 To 5.5V FlashFlex 8-bit 8051 Microcontroller 44 TQFP 10x10x1mm TRAY
• Manufacturer: Microchip Technology
• Series: FlashFlex®r

Specifications of SST89E58RD2-40-I-TQJE

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, WDT
• Number Of I /o: 36
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 8K x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP
• Processor Series: FlashFlex51
• Core: C51
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 5
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Data Sheet
3.0 MEMORY ORGANIZATION
The device has separate address spaces for program and
data memory.
3.1 Program Flash Memory
There are two internal flash memory blocks in the device.
The primary flash memory block (Block 0) has 16/32
KByte. The secondary flash memory block (Block 1) has 8
KByte. Since the total program address space is limited to
64 KByte, the SFCF[1:0] bit are used to control program
©2008 Silicon Storage Technology, Inc.
FIGURE
FFFFH
0000H
3-1: Program Memory Organization for 16 KByte SST89E54RDxA
64 KByte
EA# = 0
External
DFFFH
FFFFH
3FFFH
1FFFH
E000H
4000H
2000H
0000H
SFCF[1:0] = 00
Accessible
EA# = 1
8 KByte
8 KByte
8 KByte
Block 1
Block 0
Block 1
Not
SST89E54RD2A/RDA / SST89E58RD2A/RDA
12
DFFFH
FFFFH
3FFFH
E000H
4000H
0000H
bank selection. Please refer to Figures 3-1 and 3-2 for the
program memory configuration. Program bank selection is
described in the next section.
The 16K/32K x8 primary SuperFlash block is organized as
128/256 sectors, each sector consists of 128 Bytes.
The 8K x8 secondary SuperFlash block is organized as 64
sectors, each sector consists also of 128 Bytes.
For both blocks, the 7 least significant program address bits
select the byte within the sector. The remainder of the pro-
gram address bits select the sector within the block.
SFCF[1:0] = 01
Accessible
16 KByte
EA# = 1
8 KByte
Block 1
Block 0
Not
FFFFH
3FFFH
4000H
0000H
SFCF[1:0] = 10, 11
Accessible
16 KByte
EA# = 1
Block 0
Not
1339 F02.0
FlashFlex MCU
S71339-02-000
02/08