參數(shù)資料
型號(hào): HCD404669
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
中文描述: 低電壓如同在微機(jī)芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計(jì)算機(jī))
文件頁數(shù): 7/142頁
文件大?。?/td> 894K
代理商: HCD404669
HD404669 Series
7
Pin Description
Pin Number
Item
Symbol
FP-64A, chip
I/O
Function
Power
supply
V
CC
59
Applies power voltage
GND
8
Connected to ground
Test
TEST
2
I
Used for factory testing only: Connect this pin to V
CC
Reset
RESET
5
I
Resets the MCU
Oscillator
OSC
1
3
I
Input/output pins for the internal oscillator circuit:
Connect them to a ceramic oscillator ,crystal
oscillator or connect OSC
1
to an external oscillator
circuit
OSC
2
4
O
X1
6
I
Used for a 32.768-kHz crystal for clock purposes.
If not to be used, fix the X1 pin to V
CC
and leave
the X2 pin open.
X2
7
O
Port
D
0
–D
5
,
D
9
–D
11
9-17
I/O
Input/output pins addressed by individual bits; D
0
to D
3
are
source high-current input/output pins. A maximum 10 mA
current can be supplied to each pin.
D
4
, D
5
, and D
9
to D
11
are sink high-current input/output pins. A
maximum 15 mA current can be supplied to each pin.
D
12
, D
13
18, 19
I
Input pins addressable by individual bits
R0
0
–R4
3,
R6
0
–RA
1
20–57
I/O
Input/output pins addressable in 4-bit units
RD
0
, RD
1,
RE
0
63, 64, 1
I
Input pins addressable in 4-bit units
Interrupt
INT
0
,
INT
1
,
INT
2
–INT
4
19-23
I
Input pins for external interrupts
Stop clear
STOPC
18
I
Input pin for transition from stop mode to active mode
Serial
interface
SCK
1
37
I/O
Serial interface clock input/output pin
SI
1
38
I
Serial interface receive data input pin
SO
1
39
O
Serial interface transmit data output pin
Timer
TOC, TOD
35, 34
O
Timer output pins
EVND
36
I
Event input pin
DTMF
TONER
61
O
Output pin for DTMF row signals
TONEC
60
O
Output pin for DTMF column signals
VT
ref
62
Reference voltage pin for DTMF signals.
Voltage conditions are: V
CC
VT
ref
GND
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HCD404868 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
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HCD404899 Low-Voltage AS Microcomputers with On-Chip LCD Circuit(片上LCD電路的低壓微計(jì)算機(jī))
HCD40C4082 Low-Voltage AS Microcomputers with On-Chip A/D Converter(帶片上A/D轉(zhuǎn)換器的低壓微計(jì)算機(jī))
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