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TK68HC24PRU Datasheet

  • TK68HC24PRU

  • Port Replacement Unit (PRU)

  • 21頁

  • ETC

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Tekmos
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Preliminary
Port Replacement Unit (PRU)
For 6811 鈥?type microprocessors
Features
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TK68HC24 PRU
Exact replacement for the Motorola MC68HC24 PRU
Utilizes the Tekmos 6824 Core
Replaces ports B and C of 6811 type microprocessors.
The chip-select function allows multiple TK68HC24s to be used in systems requiring multiple parallel ports.
3 鈥?5.5 Volt Operation.
0 鈥?5 MHz Operation.
Supports all handshake and I/O modes.
Available in 40 PDIP (P) and 44 PLCC (FN) versions.
Description
The TK68HC24 is an exact replacement of the Motorola 68HC24.
The TK68HC24 is designed to replace the Port B and Port C functions of 6811 鈥?type microprocessors. These
functions are lost when the 6811 type microprocessors are operated in the expanded mode. The TK68HC24
has an address re-mapping feature that allows multiple TK68HC24s to be used within a single system.
Pinout
MODE
CSN
NC
NC
A15
A14
A13
A12
R/WN
E
AS
NC
A15
A14
A13
A12
STRA
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
VDD
STRB
PB7
PB6
PB5
PB4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
CSN
MODE
AS
E
R/WN
RESETN
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
VSS
IRQN
PB0
PB1
PB2
PB3
6 5 4 3 2 1 44 43 42 41 40
STRA
PC0
PC1
PC2
PC3
NC
PC4
PC5
PC6
PC7
VDD
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
RESETN
AD0
AD1
AD2
AD3
NC
AD4
AD5
AD6
AD7
VSS
TK68HC24P
40 PDIP
TK68HC24FN
44 PLCC
18 19 20 21 22 23 24 25 26 27 28
IRQN
PB0
PB1
PB2
PB3
NC
PB4
PB5
PB6
PB7
STRB
www.Tekmos.com
8/21/99

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