DS89C430-QNL+ Dallas Semiconductor, DS89C430-QNL+ Datasheet - Page 10

• 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 4. Serial Port Timing
SERIAL PORT (SYNCHRONOUS MODE)
SM2 = 1
SERIAL PORT (SYNCHRONOUS MODE)
SM2 = 0
WRITE TO SCON
TO CLEAR RI
WRITE TO SBUF
RXD DATA OUT
TXD CLOCK
RXD DATA IN
TXD CLOCK
WRITE TO SBUF
RXD DATA OUT
WRITE TO SCON
TO CLEAR RI
TXD CLOCK
RXD DATA IN
TXD CLOCK
PSEN
TXD CLOCK
ALE
TI
R1
PSEN
ALE
TI
R1
TDX CLOCK = XTAL FREQ/4
TDX CLOCK = XTAL FREQ/12
t
XHDV
t
QVXH
D0
t
XLXL
D0
t
XHQX
DI
DI
D2
D0
D2
DS89C430/DS89C450 Ultra-High-Speed Flash Microcontrollers
D0
10 of 48
D3
t
XHDX
D3
1/(XTAL FREQ/12)
D4
D4
DI
D5
DI
D5
D6
D6
D6
D6
D7
D7
D7
D7
TRANSMIT
RECEIVE