- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385399 > HT46C23 (Holtek Semiconductor Inc.) A/D Type 8-Bit MCU PDF資料下載
參數(shù)資料
| 型號： | HT46C23 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | A/D Type 8-Bit MCU |
| 中文描述： | 的A / D型8位微控制器 |
| 文件頁數(shù)： | 20/48頁 |
| 文件大小： | 348K |
| 代理商： | HT46C23 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁當前第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁
HT46R23/HT46C23
Rev. 1.60
20
May 3, 2004
Low Voltage Reset
LVR
The microcontroller provides low voltage reset circuit in
order to monitor the supply voltage of the device. If the
supply voltage of the device is within the range
0.9V~3.3V, such as changing a battery, the LVR will au-
tomatically reset the device internally.
The LVR includes the following specifications:
The low voltage (0.9V~V
LVR
) has to remain in their
original state to exceed 1ms. If the low voltage state
does not exceed 1ms, the LVR will ignore it and do not
perform a reset function.
The LVR uses the OR function with the external RES
signal to perform chip reset.
TherelationshipbetweenV
DD
andV
LVR
isshownbelow.
Note: V
OPR
is the voltage range for proper chip
operation at 4MHz system clock.
I
2
C Bus Serial Interface
I
2
C Bus is implemented in the device. The I
2
C Bus is a
bidirectional two-wire lines. The data line and clock line
are implement in SDA pin and SCL pin. The SDA and
SCL are NMOS open drain output pin. They must con-
nect a pull-high resistor respectively.
Using the I
2
C Bus, the device has two ways to transfer
data. One is in slave transmit mode, the other is in slave
receive mode. There are four registers related to I
2
C
Bus; HADR([20H]), HCR([21H]), HSR([22H]),
HDR([23H]). The HADR register is the slave address
setting of the device, if the master sends the calling ad-
dress which match, it means that this device is selected.
The HCR is I
2
C Bus control register which defines the
device enable or disable the I
2
C Bus as a transmitter or
as a receiver. The HSR is I
2
C Bus status register, it re-
sponds with the I
2
C Bus status. The HDR is input/output
data register, data to transmit or receive must be via the
HDR register.
The I
2
C Bus control register contains three bits. The
HEN bit define the enable or disable the I
2
C Bus. If the
data wants transfer via I
2
C Bus, this bit must be set. The
HTX bit defines whether the I
2
C Bus is in transmit or re-
ceive mode. If the device is as a transmitter, this bit must
be set to 1 . The TXAK defines the transmit acknowl-
edge signal, when the device received 8-bit data, the
device sends this bit to I
2
C Bus at the 9th clock. If the re-
ceiver wants to continue to receive the next data, this bit
must be reset to 0 before receiving data.
The I
2
C Bus status register contains 5 bits. The HCF bit
is reset to 0 when one data byte is being transferred. If
one data transfer is completed, this bit is set to 1 . The
HASS bit is set 1 when the address is match, and the
I
2
C Bus interrupt request flag is set to 1 . If the interrupt
is enabled and the stack is not full, a subroutine call to
location 10H will occur. Writing data to the I
2
C Bus con-
/ 2
%
! 5 " ( $ !
$
"
/ 2
%
! 5 " ( $ !
$
"
A " 4 !
" ( "
! )
,
%
! 5 " ( $ !
B
" , $ ! "
%
! , $
$ !
B
" . " %
!
.
% +
! ! " .
D
#
( " #
(
(
D
%
! 5 "
"
$ ( #
A " " )
, ,
" ) % " #
A "
%
! (
# $ !
% . % =
(
@ " ,
7
6 ,
7
3
,
7
0
" B
,
%
! 5 " ( $ !
" ( "
%
! 5 "
"
,
%
! 5 " ( $ !
" ( "
%
! 5 "
"
(
# . $ !
$
"
0
$ ! $
! " $ ! (
% $ ! % ' % . " ! " " ) " )
)
! J %
"
(
# . $ !
$
"
0
! )
,
%
! 5 " ( $ !
A/D Conversion Timing
D
0 D
D
D 8
*
D
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HT46C24 | A/D Type 8-Bit MCU |
| HT46R24 | A/D Type 8-Bit MCU |
| HT46C46 | Cost-Effective A/D Type 8-Bit MCU |
| HT46C47 | Cost-Effective A/D Type 8-Bit MCU |
| HT46R46 | Cost-Effective A/D Type 8-Bit MCU |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HT46C232 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:A/D Type 8-Bit MCU |
| HT46C24 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:A/D Type 8-Bit MCU |
| HT46C46 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Cost-Effective A/D Type 8-Bit MCU |
| HT46C46E | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Cost-Effective A/D Type 8-Bit MCU |
| HT46C47 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:Cost-Effective A/D Type 8-Bit MCU |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。