MB89T637PF データシートの表示（PDF） - Fujitsu
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MB89T637PF Datasheet PDF : 56 Pages
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MB89630 Series
s PIN DESCRIPTION
SH-DIP*1
MDIP*2
30
31
28
29
27
Pin no.
QFP2*3
QFP1*4
MQFP*5
22
23
23
24
20
21
21
22
19
20
Pin name
X0
X1
MOD0
MOD1
RST
56 to 49 48 to 41 49 to 42 P00/AD0 to
P07/AD7
48 to 41 40 to 33 41 to 34 P10/A08 to
P17/A157
40
32
33 P20/BUFC
39
31
32 P21/HAK
38
30
31 P22/HRQ
37
29
30 P23/RDY
36
28
29 P24/CLK
35
27
28 P25/WR
34
26
27 P26/RD
Circuit
type
Function
A Main clock crystal oscillator pins
D Operating mode selection pins
Connect directly to VCC or VSS
C Reset I/O pin
This pin is an N-ch open-drain output type with a
pull-up resistor, and a hysteresis input type. “L” is
output from this pin by an internal reset source.
The internal circuit is initialized by the input of “L”.
F General-purpose I/O ports
When an external bus is used, these ports
function as the multiplex pins of the lower address
output and the data I/O.
F General-purpose I/O ports
When an external bus is used, these ports
function as an upper address output.
H General-purpose output-only port
When an external bus is used, this port can also
be used as a buffer control output by setting the
BCTR.
H General-purpose output-only port
When an external bus is used, this port can also
be used as a hold acknowledge by setting the
BCTR.
F General-purpose output-only port
When an external bus is used, this port can also
be used as a hold request input by setting the
BCTR.
F General-purpose output-only port
When an external bus is used, this port functions
as a ready input.
H General-purpose output-only port
When an external bus is used, this port functions
as a clock output.
H General-purpose output-only port
When an external bus is used, this port functions
as a write signal output.
H General-purpose output-only port
When an external bus is used, this port functions
as a read signal output.
*1: DIP-64P-M01, DIP-64C-A06
*2: MDP-64C-P02
*3: FPT-64P-M09
*4: FPT-64P-M06
*5: MQP-M64C-P01
(Continued)
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