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PDF C161PI Data sheet ( Hoja de datos )
| Número de pieza | C161PI | |
| Descripción | 16-Bit Single-Chip Microcontroller | |
| Fabricantes | Infineon | |
| Logotipo |  |
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C161PI
Microcontrollers
C166 Family
16-Bit Single-Chip Microcontroller
C161PI
Data Sheet 1999-07
Preliminary
1 page  
&3,
Introduction
The C161PI is a derivative of the Infineon C166 Family of 16-bit single-chip CMOS
microcontrollers. It combines high CPU performance (up to 8 million instructions per
second) with high peripheral functionality and enhanced IO-capabilities. The C161PI
derivative is especially suited for cost sensitive applications.
XTAL1
XTAL2
RSTIN
RSTOUT
NMI
EA
ALE
RD
WR/WRL
Port 5
6 bit
VDD VSS VAREF VAGND
C161PI
PORT0
16 bit
PORT1
16 bit
Port 2
8 bit
Port 3
15 bit
Port 4
7 bit
Port 6
8 bit
Figure 1 Logic Symbol
Data Sheet
3
1999-07
5 Page 
&3,
Table 1
Pin Definitions and Functions (continued)
Symbol Pin Pin Input Function
Num. Num. Outp.
TQFP MQFP
EA 35 37 I External Access Enable pin. A low level at this pin
during and after Reset forces the C161PI to begin
instruction execution out of external memory. A high
level forces execution out of the internal program
memory.
"ROMless" versions must have this pin tied to ‘0’.
PORT0
IO PORT0 consists of the two 8-bit bidirectional I/O ports
P0L.0-7 38- 40-
P0L and P0H. It is bit-wise programmable for input or
45 47
output via direction bits. For a pin configured as input,
P0H.0-7 48- 50-
the output driver is put into high-impedance state.
55 57
In case of external bus configurations, PORT0 serves
as the address (A) and address/data (AD) bus in
multiplexed bus modes and as the data (D) bus in
demultiplexed bus modes.
Demultiplexed bus modes:
Data Path Width: 8-bit
16-bit
P0L.0 – P0L.7:
D0 – D7
D0 - D7
P0H.0 – P0H.7: I/O
D8 - D15
Multiplexed bus modes:
Data Path Width: 8-bit
16-bit
P0L.0 – P0L.7:
AD0 – AD7 AD0 - AD7
P0H.0 – P0H.7: A8 - A15 AD8 - AD15
PORT1
IO PORT1 consists of the two 8-bit bidirectional I/O ports
P1L.0-7 56- 58-
P1L and P1H. It is bit-wise programmable for input or
63 65
output via direction bits. For a pin configured as input,
P1H.0-7 66- 68-
the output driver is put into high-impedance state.
73 75
PORT1 is used as the 16-bit address bus (A) in
demultiplexed bus modes and also after switching from
a demultiplexed bus mode to a multiplexed bus mode.
Data Sheet
9
1999-07
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet C161PI.PDF ] | |
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