HT48R01T3 데이터 시트보기 (PDF) - Holtek Semiconductor
부품명
상세내역
제조사
HT48R01T3 Datasheet PDF : 16 Pages
| |||
HT46R01T3/HT48R01T3
8-Bit OTP MCU with RF Transmitter
Power-on Reset Characteristics
Ta=25°C
Symbol
Parameter
VPOR
RRVDD
VDD Start Voltage to Ensure
Power-on Reset
VDD raising rate to Ensure
Power-on Reset
VPOR
MAX
Maximum VDD Start Voltage
Ensure Power-on Reset
to
tPOR
Power-on Reset Low Pulse
Width
Test Conditions
VDD
Conditions
¾
¾
Min. Typ. Max. Unit
¾
¾
100 mV
¾
¾
0.035 ¾
Ta=25°C,
without 0.1mF between 0.9
¾
VDD and VSS
¾
Ta=-40°C~85°C,
without 0.1mF between 0.6
¾
VDD and VSS
without 0.1mF between 2
VDD and VSS
¾
¾
without 0.1mF between TBD
VDD and VSS
¾
¾ V/ms
1.5
V
1.8
V
¾
ms
¾
ms
V DD
tP O R
R R VDD
V POR
T im e
Functional Description
As these device packages contain different chips, for a detailed functional description, users must refer
to the relevant datasheets for the related MCU. The following table shows which individual devices
are inside each package.
Device
HT48R01T3
HT46R01T3
MCU
HT48R01B
HT46R01B
Multi-chip Internal Devices
The MCU controls the RF transmitter via a two line interface using two of its I/O pins, PB0 and PB1.
Pin PB1, which should be setup as an output by the MCU, is used to generate the encoding data. Pin
PB0, which should be setup as an input by the MCU, is used for synchronising purposes. There are
some special considerations which need to be taken into account when using these devices. These
points will be mentioned in the hardware and software consideration sections.
Hardware Considerations
As these devices are composed of an individual MCU and RF Transmitter, using them together
requires the user to take care of some special points.
Rev. 1.30
10
November 23, 2010
Share Link: 