參數(shù)資料
型號: M34506E4FP
元件分類: 微控制器/微處理器
英文描述: 4-BIT, OTPROM, MICROCONTROLLER, PDSO20
封裝: 5.30 X 12.60 MM, 1.27 MM PITCH, PLASTIC, SOP-20
文件頁數(shù): 82/114頁
文件大小: 937K
代理商: M34506E4FP
Rev.2.00
Aug 28, 2006
page 5 of 119
7643 Group
REJ03B0054-0200
Pin
Name
Function except a port function
Function
Table 2 Pin description (2)
P60–P67
8-bit I/O port.
CMOS compatible input level.
CMOS 3-state output structure.
I/O direction register allows each pin to be individually
programmed as either input or output.
5-bit I/O port.
CMOS compatible input level.
CMOS 3-state output structure.
I/O direction register allows each pin to be individually
programmed as either input or output.
8-bit I/O port.
CMOS compatible input level.
CMOS 3-state output structure.
I/O direction register allows each pin to be individually pro-
grammed as either input or output.
P70,
__________
P71/HOLD,
P72,
__________
P73/HLDA,
P74
__________
P80/SRDY,
P81/SCLK,
P82/SRXD,
P83/STXD,
P84/UTXD,
P85/URXD,
________
P86/CTS,
________
P87/RTS
Serial I/O pin
Remarks
DMAOUT pin
If externally detecting the timing of DMA execution, use the signal from this pin. It is “H” level during DMA transferring. This signal is valid in the memory expansion
and microprocessor modes.
SYNCOUT pin
If externally detecting the timing of OP code fetch, use the signal from this pin. This signal is valid in the memory expansion and microprocessor modes.
I/O port P6
I/O port P7
UART pin
I/O port P8
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