參數(shù)資料
型號: ST7285C
廠商: 意法半導(dǎo)體
英文描述: 8-BIT MCU FOR RDS WITH 48K ROM, 3K RAM, ADC, TWO TIMERS, TWO SPIs, I2C AND SCI INTERFACES
中文描述: 8位微控制器48,000鐵路發(fā)展策略光盤,3K內(nèi)存,ADC,兩個定時器,2個SPI,I2C和脊髓損傷接口
文件頁數(shù): 98/117頁
文件大?。?/td> 748K
代理商: ST7285C
98/117
ST72E85 ST72T85
1 GENERAL DESCRIPTION
1.1 INTRODUCTION
The ST72E85 is the EPROM version of the
ST7285C. Please refer to theST7285C ROM de-
vice Datasheet for further details.
From the User’s point of view, both theST72E85
and the ST7285C possess the same software and
hardware features.
An additional mode is available to allow program-
ming of the EPROM user memory array. This is
set by a specific voltage source applied to the V
PP
/
Test pin.
The ST72E85 (EPROM) features a 48K EPROM
memory.
Watchdog activation is available by Software for
Eprom and OTP devices.
Figure 1. ST72E85 Block Diagram
*Note: EPROM and OTP versions only.
Power on Reset
PA0 - PA7
Pin 65..72
PB0 - PB7
Pin 73..80
OSCin
OSCout
RESET
V
PP
/ TEST
OSC
8 -BIT CORE
ALU
VR01735P
Internal
CLOCK
A
Timer A
PORT A
PORT B
A/D Converter
8
4
SPI B
PORT C
PC0 - PC7
Pin 5..12
SPI A
PORT D
I
2
C
SCI
8
RAM
3k
RDS
FILTER,DEMOD,GBS
8
8
8
Timer B
4
4
2
PD0 - PD7
Pin 13..20
2
PORT E
PE0 - PE7
Pin 25..32
PF0 - PF7
Pin 33..40
8
PORT F
8
PORT H
PORT G
PH0 - PH5
Pin 53..58
PG0 - PG7
Pin 45..52
6
8
ROM or EPROM*
48k
Watchdog
RDScomp
RDS fil
RDS ref
MPX
ARS
AINT
V
DD
V
SS
V
DDP
V
SSP
V
DDA
V
SSA
2
2
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