參數(shù)資料
型號(hào): P83C251TQ24
廠商: INTEL CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PDIP40
封裝: PLASTIC, DIP-40
文件頁(yè)數(shù): 2/36頁(yè)
文件大小: 813K
代理商: P83C251TQ24
8xC251TB/TQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
4
3.0
PINOUT
B2977-01
AD4 / P0.4
AD5 / P0.5
AD6 / P0.6
AD7 / P0.7
EA#
VSS2
ALE
PSEN#
A15 / P2.7
A14 / P2.6
A13 / P2.5
P1.4
/
CEX1
P1.3
/
CEX0
/
TXD1
P1.2
/
ECI
/
RXD1
P1.1
/
T2EX
P1.0
/
T2
V
SS1
V
CC
AD0
/
P0.0
AD1
/
P0.1
AD2
/
P0.2
AD3
/
P0.3
P1.5 / CEX2
P1.6 / CEX3 / WAIT#
P1.7 / CEX4 / A17 / WCLK
RST
P3.0 / RXD
VCC2
P3.1 / TXD
P3.2 / INT0#
P3.3 / INT1#
P3.4 / T0
P3.5 / T1
39
38
37
36
35
34
33
32
31
30
29
8XC251TB
8XC251TQ
View of component as
mounted on PC board
7
8
9
10
11
12
13
14
15
16
17
P3.6
/
WR#
P3.7
/
RD#
/
A16
XTAL2
XTAL1
V
SS
V
SS2
A8
/
P2.0
A9
/
P2.1
A10
/
P2.2
A11
/
P2.3
A12
/
P2.4
18
19
20
21
22
23
24
25
26
27
28
6
5
4
3
2
1
44
43
42
41
40
Figure 3. 8xC251TB/TQ 44-pin PLCC Package
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