80C32E_03 Datasheet, PDF (2/20 Pages) AIMTEC – Rad. Tolerant 8-bit ROMless Microcontroller

Block Diagram
XTAL1
XTAL2
ALE
PSEN
EA
RD
WR
CPU
UART
RAM
256x8
Parallel I/O Ports & Ext. Bus
Port 0Port 1 Port 2 Port 3
C51
CORE
IB-bus
INT
Timer 0 Timer 1 Timer 2
Ctrl
Pin Configuration
P1.0/T2 1
P1.1/T2EX 2
P1.2 3
P1.3 4
P1.4 5
P1.5 ₆
P1.6 7
P1.7 ⁸
RST 9
P3.0/RxD 10
P3.1/TxD 11
P3.2/INT0 12
P3.3/INT1 13
P3.4/T0 14
P3.5/T1 15
P3.6/WR 16
P3.7/RD ¹⁷
XTAL2 18
XTAL1 19
VSS ²⁰
SB40
40 VCC
39 P0.0/A0
38 _P0.1/A1
37 P0.2/A2
36 P0.3/A3
35 ^P0.4/A4
34 ^P0.5/A5
33 ^P0.6/A6
32 ^P0.7/A7
31 EA/VPP
30 ALE
29 ^PSEN
28 P2.7/A15
27 ^P2.6/A14
26 ^P2.5/A13
25 ^P2.4/A12
24 ^P2.3/A11
23 ^P2.2/A10
22 ^P2.1/A9
21 P2.0/A8
P1.5
P1.6
P1.7
RST
P3.0/RxD
NIC*
P3.1/TxD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
6 5 4 3 2 1 44 43 42 41 40
7
39
8
38
9
37
10
36
11
35
12
MQFPJ44
34
13
33
14
32
15
31
16
30
17
29
18 19 20 21 22 23 24 25 26 27 28
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
EA
NIC*
ALE
PSEN
P2.7/A15
P2.6/A14
P2.5/A13
Note: NIC: No Internal Connection
2 80C32E
4149M–AERO–06/03