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參數(shù)資料
| 型號： | HD404449H |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MROM, MICROCONTROLLER, PQFP80 |
| 封裝： | PLASTIC, QFP-80 |
| 文件頁數(shù)： | 30/33頁 |
| 文件大?。?/td> | 440K |
| 代理商： | HD404449H |
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HD404449 Series
4
Pin Description
Item
Symbol
Pin Number I/O
Function
Power supply
V
CC
77
Applies power voltage
GND
10
Connected to ground
Test
TEST
4
I
Used for factory testing only: Connect this pin to V
CC
Reset
RESET
7
I
Resets the MCU
Oscillator
OSC
1
5
I
Input/output pins for the internal oscillator circuit:
Connect them to a ceramic oscillator, crystal, or
connect OSC
1 to an external oscillator circuit
OSC
2
6O
X1
8
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
9
O
Port
D
0–D 11
11–22
I/O
Input/output pins addressed by individual bits; pins
D
0–D 9 are high-current pins that can each supply up to
15 mA
D
12, D13
23, 24
I
Input pins addressable by individual bits
R0
0–RC3
25–76
I/O
Input/output pins addressable in 4-bit units
Interrupt
INT
0, INT1,
INT
2, INT3
24–27
I
Input pins for external interrupts
Stop clear
STOPC
23
I
Input pin for transition from stop mode to active mode
Serial
SCK
1, SCK 2
42, 46
I/O
Serial clock input/output pin
interface
SI
1, SI 2
43, 47
I
Serial receive data input pin
SO
1, SO2
44, 48
O
Serial transmit data output pin
Timer
TOB, TOC, TOD 37–39
O
Timer output pins
EVNB, EVND
40, 41
I
Event count input pins
A/D converter
AV
CC
78
Power pin for A/D converter: Connect it to the same
potential as V
CC, as physically close to the VCC pin as
possible
AV
SS
3
Ground for AV
CC:
Connect it to the same potential as
GND, as physically close to the GND pin as possible
AN
0–AN 3
79, 80, 1, 2
I
Analog input pins for A/D converter
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HD404449SERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| HD404449TF | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller |
| HD404458 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-bit HMCS400-series microcomputers |
| HD404458H | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-bit HMCS400-series microcomputers |
| HD404459 | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-bit HMCS400-series microcomputers |
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