HT46R74D-1 Holtek Semiconductor, HT46R74D-1 Datasheet - Page 25
HT46R74D-1
Manufacturer Part Number
HT46R74D-1
Description
Dual Slope A/D Type MCU
Manufacturer
Holtek Semiconductor
Datasheet
1.HT46R74D-1.pdf
(48 pages)
- Current page: 25 of 48
- Download datasheet (429Kb)
www.DataSheet4U.com
state and store the time taken, Tc, which is the de-inte-
grating time. The following formula 1 can then be used
to calculate the input voltage V
formula 1: V
Rev. 1.10
Bit No.
1~2
4~5
0
3
6
7
ADDISCH0~
ADDISCH1
(Based on ADRR0=0)
ADPWREN
ADINTM0~
ADINTM1
ADCCKEN
ADCMPO
A
ADRR0
= (1/3) VDSO (2 Tc/Ti).
Label
Dual slope block (including input OP) power on/off switch.
0: disable Power
1: Power source comes from the regulator.
Defines the ADC discharge/charge.
00: reserved
01: charging - Integrator input connect to buffer output
10: discharging - Integrator input connect to VDSO)
11: reserved
Dual Slope ADC - last stage comparator output.
Read only bit, write data instructions will be ignored.
During the discharging state, when the integrator output is less than the reference voltage,
the ADCMPO will change from high to low.
ADC integrator interrupt mode definition. These two bits define the ADCMPO data interrupt
trigger mode:
00: no interrupt
01: rising edge
10: falling edge
11: both edge
ADC OP chopper clock source on/off switch.
0: disable
1: enable (clock value is defined by ADCD register)
ADC resistor selection
0: (V
1: (V
INT
INT
A
.
, V
, V
CMP
CMP
)= (4/6 VOREG, 1/6 VOREG)
)= (4.4/6 VOREG, 1/6 VOREG)
ADCR (18H) Register
25
In user applications, it is required to choose the correct
value of R
the V
1/6VDSO. Vfull cannot be greater than 5/6VDSO and
Vzero cannot be less than 1/6VDSO
Function
C
value to operate between 5/6VDSO and
DS
and C
DS
to determine the Ti value, to allow
HT46R74D-1
January 11, 2007
Related parts for HT46R74D-1
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Ht46r63/ht46c63 -- A/d With Lcd Type 8-bit Mcu
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht6221/ht6222 -- Multi-purpose Encoders
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht6230 -- Infrared Remote Encoder
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht6571 -- Multiple Rs-232 Drivers And Receivers Restricted Products
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ps/2 Mouse Controller
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
I/o Ttl Integration
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Timer
Manufacturer:
Holtek Semiconductor
Datasheet:
Part Number:
Description:
RAM Mapping 64 x16 LCD Controller for I/O C
Manufacturer:
Holtek Semiconductor Inc
Datasheet:
Part Number:
Description:
1/4 to 1/11 Duty VFD Controller
Manufacturer:
Holtek Semiconductor Inc
Datasheet:
Part Number:
Description:
(HT46R51 / HT46R52) A/D Type 8-Bit OTP MCU
Manufacturer:
Holtek Semiconductor
Datasheet:
Part Number:
Description:
A/D Type USB 8-Bit MCU
Manufacturer:
Holtek Semiconductor
Datasheet:
Part Number:
Description:
OTP Encoder
Manufacturer:
Holtek Semiconductor Inc
Datasheet:
Part Number:
Description:
Ht82m98a -- 3-key 3d Usb+ps/2 Mouse Controller
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht82k68e -- Multimedia Keyboard Encoder 8-bit Otp Mcu
Manufacturer:
Holtek Semiconductor Inc.
Datasheet:
Part Number:
Description:
Ht82v732 -- 60ma Audio Power Amp
Manufacturer:
Holtek Semiconductor Inc.
Datasheet: