Block Diagram

The following block diagram illustrates the dual-chip structure of the devices, where an individual

MCU and RF Transmitter devices are combined into a single package.

HT46R01T3/HT48R01T3

8-Bit OTP MCU with RF Transmitter

Rev. 1.30

3

November 23, 2010

T i m e r s

I / O

P o r t s

T i m e

B a s e

P F D

D r i v e r

P W M

D r i v e r

A / D

C o n v e r t e r

W a t c h d o g

T i m e r

8 - b i t

R I S C

M C U

C o r e

R e s e t

C i r c u i t

I n t e r r u p t

C o n t r o l l e r

I n t e r n a l

O s c i l l a t o r

L o w

V o l t a g e

R e s e t

E x t e r n a l

R C / X T

O s c i l l a t o r

R F

T r a n s m i t t e r

Note: The PWM and A/D Converter functions only exist in the HT46R01T3 device.

H T 4 6 R 0 1 B

H T 4 8 R 0 1 B

R F M o d u l e

P B 1

P B 0

D I N

C R E F

P A 1 / P F D / A N 1

P A 2 / T M R 0 / A N 2

P A 3 / I N T / A N 3

P A 4 / P W M / T M R 1

P A 5 / O S C 2

P A 6 / O S C 1

V S S

P A O U T

X O U T

X I N

E N

P A 0 / A N 0

P A 7 / R E S

P B 1 / D O U T

Internal Chip Interconnection Diagram

Note: The PWM and AN0~AN3 shared-pin functions only exist in the HT46R01T3 device.