SST89E58RD2-40-C-NJE Microchip Technology, SST89E58RD2-40-C-NJE Datasheet - Page 35

• Manufacturer Part Number: SST89E58RD2-40-C-NJE
• Description: 4.5 To 5.5V FlashFlex 8-bit 8051 Microcontroller 44 PLCC TUBE
• Manufacturer: Microchip Technology
• Series: FlashFlex®r

Specifications of SST89E58RD2-40-C-NJE

• 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: 0°C ~ 70°C
• Package / Case: 44-LCC (J-Lead)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

FlashFlex MCU
SST89E54RD2A/RDA / SST89E58RD2A/RDA
External Interrupt Control (XICON)
©2008 Silicon Storage Technology, Inc.
Location
AEH
Symbol
X
EX2
IE2
IT2
EX3
IE3
IT3
7
X
EX3
6
Function
Don’t Care
External Interrupt 2
Enable bit if set
Interrupt Enable
If IT2=1, IE2 is set/cleared automatically by hardware when interrupt is detected/
serviced.
External Interrupt 2 is falling-edge/low-level triggered when this bit is cleared by
software.
External Interrupt 3
Enable bit if set
Interrupt Enable
If IT3=1, IE3 is set/cleared automatically by hardware when interrupt is detected/
serviced.
External Interrupt3 is falling-edge/low-level triggered when this bit is cleared by
software.
IE3
5
IT3
4
35
3
0
EX2
2
IE2
1
IT2
0
S71339-02-000
Reset Value
Data Sheet
00H
02/08