參數(shù)資料
型號： MB90548PFF
廠商： FUJITSU LTD
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP100
封裝： PLASTIC, LQFP-100
文件頁數(shù)： 56/73頁
文件大?。?/td> 1663K
代理商： MB90548PFF
MB90540/545 Series
6
s PIN DESCRIPTION
No.
Pin name
Circuit type
Function
82
83
X0
X1
A
(Oscillation)
High speed oscillator input pins
80
79
X0A
X1A
A
(Oscillation)
Low speed oscillator input pins
77
RST
B
External reset request input
52
HST
C
Hardware standby input
85 to 92
P00 to P07
I
General I/O port with programmable pullup. This function is enabled
in the single-chip mode.
AD00 to AD07
I/O pins for 8 lower bits of the external address/data bus. This func-
tion is enabled when the external bus is enabled.
93 to 100
P10 to P17
I
General I/O port with programmable pullup. This function is enabled
in the single-chip mode.
AD08 to AD15
I/O pins for 8 higher bits of the external address/data bus. This func-
tion is enabled when the external bus is enabled.
1 to 8
P20 to P27
H
General I/O port with programmable pullup. This function is enabled
in the single-chip mode.
A16 to A23
Output pins for A16 to A23 ot the external address bus. This function
is enabled when the external bus is enabled.
9
P30
I
General I/O port with programmable pullup. This function is enabled
in the single-chip mode.
ALE
Address latch enable output pin. This function is enabled when the
external bus is enabled.
10
P31
I
General I/O port with programmable pullup. This function is enabled
in the single-chip mode.
RD
Read strobe output pin for the data bus. This function is enabled
when the external bus is enabled.
12
P32
I
General I/O port with programmable pullup. This function is enabled
in the single-chip mode or when the WR/WRL pin output is disabled.
WRL
Write strobe output pin for the data bus. This function is enabled
when both the external bus and the WR/WRL pin output are en-
abled. WRL is used to write-strobe 8 lower bits of the data bus in
16-bit access while WR is used to write-strobe 8 bits of the data bus
in 8-bit access.
WR
13
P33
I
General I/O port with programmable pullup. This function is enabled
in the single-chip mode or external bus 8-bit mode or when WRH pin
output is disabled.
WRH
Write strobe output pin for the 8 higher bits of the data bus. This
function is enabled when the external bus is enabled, when the ex-
ternal bus 16-bit mode is selected, and when the WRH output pin is
enabled.
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