參數(shù)資料
型號(hào): PIC17FR43
廠商: Microchip Technology Inc.
英文描述: High-Performance 8-Bit CMOS FlexROM Microcontroller(每個(gè)I/O口有25mA驅(qū)動(dòng)/吸收電流,并行從動(dòng)口,2路捕捉/PWM的微控制器)
中文描述: 高性能8位微控制器的CMOS FlexROM(每個(gè)的I / O口有25毫安驅(qū)動(dòng)/吸收電流,并行從動(dòng)口,2路捕捉/脈寬調(diào)制的微控制器)
文件頁數(shù): 8/16頁
文件大?。?/td> 144K
代理商: PIC17FR43
PIC17FR4X
DS30255A-page 8
Advanced Information
1996 Microchip Technology Inc.
PORTD is a bi-directional I/O Port.
This is also the upper byte of the 16-bit system bus in
microprocessor mode or extended microprocessor mode
or extended microcontroller mode. In multiplexed system
bus configuration these pins are address output as well
as data input or output.
RD0/AD8
RD1/AD9
RD2/AD10
RD3/AD11
RD4/AD12
RD5/AD13
RD6/AD14
RD7/AD15
40
39
38
37
36
35
34
33
43
42
41
40
39
38
37
36
15
14
13
12
11
10
9
8
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
PORTE is a bi-directional I/O Port.
In microprocessor mode or extended microcontroller
mode, it is the Address Latch Enable (ALE) output.
Address should be latched on the falling edge of ALE
output.
In microprocessor or extended microcontroller mode, it is
the Output Enable (OE) control output (active low).
In microprocessor or extended microcontroller mode, it is
the Write Enable (WR) control output (active low).
Test mode selection control input. Always tie to V
mal operation.
Ground reference for logic and I/O pins.
RE0/ALE
30
32
4
I/O
TTL
RE1/OE
29
31
3
I/O
TTL
RE2/WR
28
30
2
I/O
TTL
TEST
27
29
1
I
ST
SS
for nor-
V
SS
10,
31
11,
12,
33, 34
1, 44
5, 6,
27, 28
P
V
Legend: I = Input only; O = Output only; I/O = Input/Output; P = Power; — = Not Used; TTL = TTL input;
ST = Schmitt Trigger input.
DD
1
16, 17
P
Positive supply for logic and I/O pins.
TABLE 2-1:
PINOUT DESCRIPTIONS (Cont.’d)
Name
DIP
No.
PLCC
No.
QFP
No.
I/O/P
Type
Buffer
Type
Description
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