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): 130/140頁
文件大?。?/td> 2841K
代理商: MB91302APFF-G-XXX-BNDE1
MB91301 Series
DS07-16502-4E
9
■ PIN DESCRIPTIONS
Except for Power supply, GND, and Tool pins
(Continued)
Pin no.
Pin name
I/O circuit
type
Function
MB91302A
MB91V301A
132 to 139
166 to 169,
172 to 175
D00 to D07
J
External data bus bits 0 to 7. It is available in the
external bus mode.
P00 to P07
Can be used as ports in 8-bit or 16-bit external bus
mode.
142 to 144,
1 to 5
178 to 180, 2,
5 to 8
D08 to D15
J
External data bus bits 8 to 15.
It is available in the external bus mode.
P10 to P17
Can be used as ports in 8-bit or 16-bit external bus
mode.
8 to 15
11 to 18
D16 to D23
J
External data bus bits 16 to 23.
It is available in the external bus mode.
P20 to P27
Can be used as ports in 8-bit external bus mode.
18 to 25
21 to 24,
27 to 30
D24 to D31
C
External data bus bits 24 to 31.
It is available in the external bus mode.
28
33
RDY
J
External ready input. The pin has this function when
external ready input is enabled.
P80
General purpose input/output port. The pin has this
function when external ready input is disabled.
29
34
BGRNT
J
Acknowledge output for external bus release.
Outputs "L" when the external bus is released. The
pin has this function when output is enabled.
P81
General purpose input/output port. The pin has this
function when output is disabled for external bus
release acknowledge.
30
35
BRQ
J
External bus release request input. Input "1" to
request release of the external bus. The pin has this
function when input is enabled.
P82
General purpose input/output port. The pin has this
function when the external bus release request
input is disabled.
31
36
RD
C
External bus read strobe output.
32
37
WR0/ (UUB) /
DQMUU
C
External bus write strobe output. When WR is used
as the write strobe, this becomes the byte-enable
pin (UUB).
Select signal (DQMUU) of D31 to D24 at using of
SDRAM.
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