參數(shù)資料
型號: MB91302APFF-G-XXX-BNDE1
元件分類: 微控制器/微處理器
英文描述: 32-BIT, MROM, 68 MHz, RISC MICROCONTROLLER, PQFP144
封裝: 0.40 MM PITCH, PLASTIC, LQFP-144
文件頁數(shù): 2/140頁
文件大小: 2841K
代理商: MB91302APFF-G-XXX-BNDE1
MB91301 Series
10
DS07-16502-4E
(Continued)
Pin no.
Pin name
I/O circuit
type
Function
MB91302A
MB91V301A
33
38
WR1/ (ULB) /
DQMUL
J
External bus write strobe output. The pin has this
function when WR1 output is enabled. When WR is
used as the write strobe, this becomes the byte-
enable pin (ULB). Select signal (DQMUL) of D23 to
D16 at using of SDRAM.
P85
General purpose input/output port. The pin has this
function when the external bus write-enable output
is disabled.
34
39
WR2/ (LUB) /
DQMLU
J
External bus write strobe output. The pin has this
function when WR2 output is enabled. When WR is
used as the write strobe, this becomes the byte-
enable pin (LUB). Select signal (DQMLU) of D08 to
D05 at using of SDRAM.
P86
General purpose input/output port. The pin has this
function when the external bus write-enable output
is disabled.
35
40
WR3/ (LLB) /
DQMLL
J
External bus write strobe output. The pin has this
function when WR3 output is enabled. When WR is
used as the write strobe, this becomes the byte-
enable pin (LLB). Select signal (DQMLL) of D07 to
D00 at using of SDRAM.
P87
General purpose input/output port. The pin has this
functions when the external bus write-enable output
is disabled.
36
43
SYSCLK
C
System clock output. The pin has this function when
system clock output is enabled. This outputs the
same clock as the external bus operating frequency.
(Output halts in stop mode.)
P90
General purpose input/output port. The pin has this
function when system clock output is disabled.
37
40
MCLKE
J
Clock enable signal for memory.
P91
General purpose input/output port. The pin has this
function when clock enable output is disabled.
38
45
MCLK
C
Memory clock output. The pin has this function
when memory clock output is enabled. This outputs
the same clock as the external bus operating
frequency. (Output halts in sleep mode.)
P92
General purpose input/output port. The pin has this
function when memory clock output is disabled.
39
46
P93
C
General purpose input/output port.
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