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HT48R01T3 Datasheet(PDF) 6 Page - Holtek Semiconductor Inc

Part No. HT48R01T3
Description  8-Bit OTP MCU with RF Transmitter
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT48R01T3 Datasheet(HTML) 6 Page - Holtek Semiconductor Inc

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Pin Name
Function
OPT
I/T
O/T
Description
PA7/RES
PA7
PAWK
ST
NMOS General purpose I/O. Register enabled wake-up.
RES
CO
ST
¾
Reset input
PB1/DOUT
PB1
PBPU
ST
CMOS
General purpose I/O. Register enabled pull-up.
Internally connected to DIN pin on RF module.
Must be setup as output for interfacing to RF module.
DOUT
¾¾¾
Data output from MCU to RF module
Connected internally to PB1
PAOUT
PAOUT
¾¾
NSO
RF power amplifier output
XOUT
XOUT
¾¾
HXT
RF chip crystal pin
XIN
XIN
¾
HXT
¾
RF chip crystal pin
VDD
VDD
¾
PWR
¾
MCU power supply
VSS
VSS
¾
PWR
¾
MCU ground
AVDD
AVDD
¾
PWR
¾
RF chip power supply
AVSS
AVSS
¾
PWR
¾
RF chip ground
Note:
I/T: Input type
O/T: Output type
OPT: Optional by configuration option (CO) or register option
PWR: Power
CO: Configuration option
ST: Schmitt Trigger input
CMOS: CMOS output
NSO: Non-standard output
Internally Connected Pins
In addition to the internal connection between MCU pin, PB1, and RF Transmitter pin, DIN, the MCU
pin, PB0, and RF Transmitter pin, CREF, are also internally connected. However it should be noted
that PB0/CREF is not connected to any external pins on the device package.
Pin Name
Function
OPT
I/T
O/T
Description
PB0/CREF
PB0
PBPU
ST
CMOS
General Purpose I/O. Register enabled pull-high resistor.
Internally connected to CREF pin on RF module.
Must be setup as an input for interfacing to RF module.
Not available on package.
CREF
¾¾¾
RF Transmitter generated pulses for synchronisation.
Connected internally to PB0. Not available on package.
Rev. 1.30
6
November 23, 2010
HT46R01T3/HT48R01T3
8-Bit OTP MCU with RF Transmitter


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