參數(shù)資料
型號(hào): C515C
廠商: INFINEON TECHNOLOGIES AG
元件分類: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁(yè)數(shù): 13/96頁(yè)
文件大?。?/td> 1285K
代理商: C515C
C515C
Data Sheet
9
2003-02
XTAL1
37
O
XTAL1
Output of the inverting oscillator amplifier.
Port 2
is an 8-bit quasi-bidirectional I/O port with internal
pullup resistors. Port 2 pins that have 1's written to
them are pulled high by the internal pullup resistors,
and in that state can be used as inputs. As inputs,
port 2 pins being externally pulled low will source
current (
I
IL
, in the DC characteristics) because of
the internal pullup resistors.
Port 2 emits the high-order address byte during
fetches from external program memory and during
accesses to external data memory that use 16-bit
addresses (MOVX @DPTR). In this application it
uses strong internal pullup resistors when issuing
1's. During accesses to external data memory that
use 8-bit addresses (MOVX @Ri), port 2 issues the
contents of the P2 special function register.
CPU Running Condition
This output pin is at low level when the CPU is
running and program fetches or data accesses in
the external data memory area are executed. In idle
mode, hardware and software power down mode,
and with an active RESET signal CPUR is set to
high level.
CPUR can be typically used for switching external
memory devices into power saving modes.
The
Program Store Enable
output is a control signal that enables the external
program memory to the bus during external fetch
operations. It is activated every six oscillator
periods, except during external data memory
accesses. The signal remains high during internal
program execution.
P2.0-P2.7
38-45
I/O
CPUR
46
O
PSEN
47
O
Table 2
Symbol
Pin Definitions and Functions
(cont’d)
Pin Number
I/O
1)
Function
P-MQFP-80-1
相關(guān)PDF資料
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C515C-8EM RW-D Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 48V; Output Voltage (Vdc): 05V; Power: 2W; DIP24 Low Profile Package; Dual Ouputs from a Single Supply; 2:1 Wide Range Voltage Input; 3kVDC Isolation; UL94V-0 Package Material; Continuous Short Circuit Protection; Low profile 7mm Height; Approved for Medical Applications; Efficiency to 85%
C515C-8RM RW-S Series - Econoline Regulated DC-DC Converters; Input Voltage (Vdc): 48V; Output Voltage (Vdc): 05V; Power: 2W; DIP24 Low Profile Miniature Package; 1kVDC Isolation; Feedback Regulated Output; 2:1 Wide Range Voltage Input; Continuous Short Circuit Protection; Less than 7mm Height; SMD Pinning Option; Efficiency to 87%
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