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參數(shù)資料
| 型號： | TC9331F |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP80 |
| 封裝： | 14 X 20 MM, 0.80 MM PITCH, PLASTIC, QFP-80 |
| 文件頁數(shù)： | 27/31頁 |
| 文件大?。?/td> | 791K |
| 代理商： | TC9331F |
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TC9331F
2002-02-05
5
Pin
No.
Symbol
I/O
Description of Pin Function
Remark
42~49 IO0~IO7
Pull-up resistor
52~59 IO8~IO15
I/O
Data input/output to and from the external RAM source.
Data Length
I/O0~I/O7
I/O8~I/O15
16 bit
Low priority 8 bit
(D7~D0)
High priority 8 bit
(D15~D8)
32 bit
Low priority 16 bit
(D23~D16)/(D7~D0)
High priority 16 bit
(D31~D24)/(D15~D8)
Pull-up resistor
RC0~RC3
[Pseudo-static RAM mode]
[Dynamic RAM mode]
―
61
RC0
O
CE
:
Chip enable signal
output terminal.
RAS
:
Low address strobe
output terminal.
―
62
RC1
O
Not in use.
CAS
:
Column address strobe
output terminal.
―
63
RC2
O
OE
/ RFSH : Output enable/refresh
signal output terminal.
OE
:
Output enabling signal
output terminal.
―
64
RC3
O
R/ W :
Read/write signal output
terminal.
WTITE :
Read/write signal output
terminal.
―
65
RST
I
Reset signal input terminal.
Pull-up resistor
66
HALT
I
Halt signal input terminal.
When “L” is active, the program counter is stopped and instructions are
rendered as NOP.
Generally used in the emulation mode.
Schmidt input
Pull-up resistor
67
OVF
O
Overflow output terminal.
Activates “L” when an overflow occurs during operations.
Open drain output.
68
CS
I
Chip selection signal terminal.
When the “ CS ” is in an “L” 's active, data can be transferred from the CPU.
Schmidt input.
69
IFCD
I
Microcomputer command or data input mode selection terminal. When “H” is
active, the terminal acts as a command selection terminal; when “L” is active,
it acts as a data input selection terminal.
Schmidt input.
70
IFCK
I
Shift clock input terminal for microcomputer data processing.
Schmidt input.
71
IFDT
I
Microcomputer data processing input terminal.
Receives commands and data to which one parity bit has been added at the
LSB first.
Schmidt input.
72
ACK
O
Acknowledge output terminal for the microcomputer.
Outputs an acknowledge signal when the command and data parity are
acceptable.
Open drain output.
Pull-up resistor
73
DCHK
O
Microcomputer return output terminal.
At the same time that the IFCK is initiated, the terminal outputs the received
data. In the emulation mode, the terminal also sends out an “L”, the break
acknowledge signal.
Open drain output.
Pull-up resistor
74~76 TES0~
TES2
I
Test terminal.
Usually used in an “H”, or open, position.
Pull-up resistor
78
XI
I
79
XO
O
Crystal oscillator connection terminal.
23
50
77
VDD
―
Power supply terminal.
―
13
32
41
51
60
80
VSS
―
Ground terminal.
―
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