DS89C430-QNL+ Dallas Semiconductor, DS89C430-QNL+ Datasheet - Page 28

• Manufacturer Part Number: DS89C430-QNL+
• Description: 8BIT CISC 16KB FLASH 33MHZ 5V 44PLCC
• Manufacturer: Dallas Semiconductor

Specifications of DS89C430-QNL+

• Eeprom Memory: 0 Bytes
• Input Output: 32
• Interface: UART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 44-pin PLCC
• Programmable Memory: 16K Bytes
• Ram Size: 1K Bytes
• Speed: 33 MHz
• Timers: 4-8-bit, 3-16-bit
• Voltage, Range: 4.5-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part

Figure 8. Nonpage Mode, External Data Memory Access (Stretch = 0, CD1:CD2 = 10)
Figure 9. Nonpage Mode, External Data Memory Access (Stretch = 1, CD1:CD2 = 10)
XTAL1
RD/WR
XTAL1
RD/WR
Port 0
Port 2
Port 0
Port 2
ALE
PSEN
PSEN
ALE
MOVX
Instruction
Fetch
MOVX
Instruction
Fetch
A
A
A
A
MOVX
MOVX
1st Machine Cycle
1st Machine Cycle
A
A
MOVX Instruction
INST
INST
MOVX Instruction
2nd Machine Cycle
2nd Machine Cycle
DS89C430/DS89C450 Ultra-High-Speed Flash Microcontrollers
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Memory
Access
Stretch = 0
A
A
A
A
Memory Access
Stretch = 1
DATA
DATA
3rd Machine Cycle