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參數(shù)資料
| 型號： | P83C834 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit microcontrollers with LCD-driver |
| 中文描述： | 8位微控制器與LCD驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 3/36頁 |
| 文件大?。?/td> | 165K |
| 代理商： | P83C834 |
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1997 Jul 03
3
Philips Semiconductors
Product specification
8-bit microcontrollers with LCD-driver
P83C434; P83C834
Timer 0 external input replaced by a direct connection to
the 32 kHz oscillator output.
Timer 1 external input is connected to pin P0.0 (Port 0);
alternate function of P0.0.
Standard serial interface and its control register is not
present.
Adjustable on-chip oscillator without external
components.
Wake-up from Power-down mode is also possible by
means of an interrupt.
Extended external interrupts.
1.2
Memory
Table 1
ROM/RAM sizes
2
GENERAL DESCRIPTION
The P83C434 and P83C834 are low-cost microcontrollers
of the 80C51 family, with LCD drivers.
Main application is in the user-interface (keypad, display)
of consumer products, e.g. portable radios, CD-players,
etc.
This data sheet details the specific properties of the
P83C434 and P83C834. The shared characteristics of the
80C51 family of microcontrollers are described in “Data
Handbook IC20” which should be read in conjunction with
this data sheet.
DEVICE
MEMORY
ROM
RAM
P83C434
P83C834
4 kbytes
8 kbytes
128 bytes
256 bytes
1
FEATURES
80C51 type core
System clock derived from an internal free running
Current Controlled Oscillator (CCO); no external
components required. Clock frequency can be adjusted
by software.
Optimized for EMC (Electromagnetic Compatibility)
Clock frequency f
clk
= 1 to 12 MHz
12 I/O lines, quasi-bidirectional
Gated interrupt on 8 I/O lines:
– P0.0 to P0.3 when LOW
– P0.4 to P0.7 when LOW or HIGH
LCD driver clock, 32 kHz, which also provides the time
base for a Real Time Clock
1-second interrupt by internal 15-bit counter
On-chip Liquid Crystal Display (LCD) drivers with
26 outputs, comprising:
– 22, 23 or 24 segment drivers
– 1 to 4 backplanes
LCD multiplexing rates: 1 : 1 (static), 1 : 2, 1 : 3 or 1 : 4
Operating temperature:
40 to +85
°
C
Single power supply:
– Operating voltage: 3.5 to 5.5 V
– Power-down mode: 1.8 V.
1.1
Differences from the 80C51 core
Port 0 quasi-bidirectional instead of open-drain.
No external memory connection.
Signals EA, ALE and PSEN are not present.
Port 1, Port 2 (pins P2.4 to P2.7) and Port 3 are not
present.
3
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
TEMP.
RANGE (
°
C)
NAME
DESCRIPTION
VERSION
P83C434CFP;
P83C834CFP
SDIP42 plastic shrink dual in-line package; 42 leads (600 mil)
QFP44
plastic quad flat package; 44 leads (lead length 1.3 mm);
body 10
×
10
×
1.75 mm
SOT270-1
SOT307-2
40 to +85
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