MC68HC912B32 Datasheet, PDF (9/128 Pages) Motorola, Inc – 16-Bit Microcontroller

3 Pinout and Signal Descriptions
3.1 MC68HC912B32 Pin Assignments
The MC68HC912B32 is available in a 80-pin quad flat pack (QFP). Most pins perform two or more func-
tions, as described in the 3.3 Signal Descriptions. Figure 3 shows pin assignments. Shaded pins are
power and ground.
PORT DLC
PORT S
PORT P
PP5 1
PP4 2
PW3 / PP3
3
PW2 / PP2
4
PW1/ PP1
5
PW0/ PP0
6
IOC0 / PT0 7
IOC1 / PT1 8
IOC2 / PT2 9
V_DD
10
V_SS
11
IOC3 / PT3 12
IOC4 / PT4 13
IOC5 / PT5 14
IOC6 / PT6 15
PAI / IOC7 / PT7 16
SMODN / TAGHI/ BKGD
17
ADDR0 / DATA0 / PB0
18
ADDR1 / DATA1 / PB1
19
ADDR2 / DATA2 / PB2
20
MC68HC912B32
80-PIN QFP
60
V_SSA
59
V_DDA
58
PAD7 / AN7
57
PAD6 / AN6
56
PAD5 / AN5
55
PAD4 / AN4
54
PAD3 / AN3
53
PAD2 / AN2
52
PAD1 / AN1
51
PAD0 / AN0
50
V_RL
49
V_RH
48
V_SS
47
V_DD
46
PA7 / DATA15 / ADDR15
45
PA6 / DATA14 / ADDR14
44
PA5 / DATA13 / ADDR13
43
PA4 / DATA12 / ADDR12
42
PA3 / DATA11 / ADDR11
41
PA2 / DATA10 / ADDR10
PORT B
PORT E
PORT E
* In narrow mode, high and low data bytes are multiplexed in alternate bus cycles on port A.
Figure 3 Pin Assignments for MC68HC912B32
PORT A*
HC12 80QFP
MC68HC912B32
MC68HC912B32TS/D
MOTOROLA
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