参数资料
型号: P87C251SQ16
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: HIGH-PERFORMANCE CHMOS MICROCONTROLLER
中文描述: 8-BIT, OTPROM, 16 MHz, MICROCONTROLLER, PDIP40
封装: PLASTIC, DIP-40
文件页数: 6/35页
文件大小: 186K
代理商: P87C251SQ16
6
PRELIMINARY
8XC251SA/SB/SP/SQ HIGH-PERFORMANCE CHMOS MICROCONTROLLER
2.0
PINOUT
Figure 3. 8XC251SA/SB/SP/SQ 44-pin PLCC Package
AD4 / P0.4
AD5 / P0.5
AD6 / P0.6
AD7 / P0.7
EA# / V
PP
V
ALE
PSEN#
A15 / P2.7
A14 / P2.6
A13 / P2.5
P
P
P
P
P
V
S
V
C
A
A
A
A
A4205-02
P1.5 / CEX2
P1.6 / CEX3 / WAIT#
P1.7 / CEX4 / A17 / WCLK
RST
P3.0 / RXD
V
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
8XC251SA
8XC251SB
8XC251SP
8XC251SQ
View of component as
mounted on PC board
7
8
9
10
11
12
13
14
15
16
17
P
X
X
V
S
V
S
A
A
A
A
A
1
1
2
2
2
2
2
2
2
2
2
6
5
4
3
2
1
4
4
4
4
4
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