參數(shù)資料
型號(hào)： HT47C20L
廠商： Holtek Semiconductor Inc.
元件分類(lèi)： 數(shù)學(xué)處理器
英文描述： 8-BIT MICROCONTROLLER
中文描述： 8位微控制器
文件頁(yè)數(shù)： 5/55頁(yè)
文件大?。?/td> 341K
代理商： HT47C20L
Pin Description
Pin Name
I/O
Mask
Option
Function
RES
I
Schmitt trigger reset input. Active low.
PA0/BZ
PA1/BZ
PA2
PA3/PFD
PA4~PA7
I/O
Wake-up
Pull-high
or None
CMOS or
NMOS
Bidirectional 8-bit input/output port. The low nibble of the PA
can be configured as CMOS output or NMOS output with or
without pull-high resistors (mask option). NMOS output can be
configured as schmitt trigger input with or without pull-high
resistors. Each bit of NMOS output can be configured as wake
up input by mask option. Of the eight bits, PA0~PA1 can be set
as I/O pins or buzzer outputs by mask option. PA3 can be set as
an I/O pin or a PFD output by mask option.
PB0/INT
PB1
PB2/TMR
PB3
I
Four-bit schmitt trigger input port. The PB is configured as
with pull-high resistors. Of the four bits, PB0 can be set as an
input pin or an external interrupt input pin (INT) by software
application. While PB2 can be set as an input pin or a
timer/event counter input pin by software application.
VSS
Negative power supply, GND
V1~V3, C1~C2
Voltage pump
SEG19/COM3
COM2~COM0
O
1/2 or 1/3
or 1/4
Duty
SEG19/COM3 can be set as a segment or a common output
driver for LCD panel by mask option. COM2~COM0 are out-
puts for LCD panel plate.
SEG18~SEG0
O
LCD driver outputs for LCD panel segments
VDD
Positive power supply
OSC2
OSC1
O
I
OSC1 and OSC2 are connected to a 32768Hz crystal for the in-
ternal system clock and WDT source.
IN0
CS0
RS0
CRT0
RT0
I
O
O
O
O
Oscillation input pin of channel 0
Reference capacitor connection pin of channel 0
Reference resistor connection pin of channel 0
Resistor/capacitor sensor connection pin for measurement of
channel 0
Resistor sensor connection pin for measurement of channel 0
IN1
CS1
RS1
RT1
I
O
O
O
Oscillation input pin of channel 1
Reference capacitor connection pin of channel 1
Reference resistor connection pin of channel 1
Resistor sensor connection pin for measurement of channel 1
TEST
I
TEST mode input pin with pull-high resistor.
It disconnects in normal operation.
HT47C20L
5
January 18, 2000
相關(guān)PDF資料
PDF描述
HT47C20 8-BIT MICROCONTROLLER
HT47R20 8 位R-F 型OTP 單片機(jī)
HT48C05 Cost-Effective I/O Type 8-Bit MCU
HT48C06 Cost-Effective I/O Type 8-Bit MCU
HT48C10-1 8-Bit High Performance RISC-like Microcontroller Suitable for Multiple I/O Application(高性能、指令類(lèi)似RISC的8位微控制器，用于多I/O接口設(shè)備)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HT47C20L_05 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:R-F Type Low Voltage 8-Bit Mask MCU
HT47M50 制造商:NTE Electronics 功能描述:
HT47R10A-1 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:R-F Type 8-Bit MCU
HT47R20 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:8 位R-F 型OTP 單片機(jī)
HT47R20A-1 制造商:HOLTEK 制造商全稱(chēng):Holtek Semiconductor Inc 功能描述:R-F Type 8-Bit MCU
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