Rev. 1.10

2

November 10, 2014

HT6P237A/HT6P247A

Pin Assignment

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

NC

B0

BT S1

BT S0

OP S

VD D

VSS

PA OU T

PVS S

XI N

XO UT

DO UT

D0

D1

VSS

BT SG S

22A ddr es s + 2D at a

16

15

14

13

12

11

10

9

1

2

3

4

5

6

7

8

B1

B0

BT S1

BT S0

OP S

VD D

VS S

PA OU T

PVS S

XI N

XO UT

DO UT

D0

D1

D2

D3

24A ddr es s + 4D at a

HT 6P 237A

16 NS OP -A

HT 6P 247A

16 NS OP -A

Selection Table

Part No.

Addr. No. Data No. Compound

Data No.

Trig.

Frequency Band

RF Type Package

HT6P237A 2.0V~3.6V

22

2

2

Data Low 300MHz~450MHz

ASK TX

16NSOP

HT6P247A 2.0V~3.6V

24

4

2

Data Low 300MHz~450MHz

ASK TX

16NSOP

Pin Description

Pin No.

Pin Name

I/O

Internal

Connection

Description

1~2

B1~B0

I

CMOS IN

Compound pin – D0~D3 for B0 and D1~D2 for B1 in HT6P247A

Compound pin – D0~D1 for B0 in HT6P237A

3~4

BTS1~BTS0

I

CMOS IN

width types

5

OPS

I

CMOS IN

one of 3 power output levels

6

VDD

P

—

Positive power supply

7/15

VSS

P

—

Negative power supply, ground

Pin 15 in the HT6P237A should be grounded

8

PAOUT

O Power Amplify

Output

L/C matching circuit

9

PVSS

P

—

RF negative power supply, ground

10

XIN

I

Oscillator

13.56MHz Crystal oscillator input for 433.92MHz RF

11

XOUT

O

Oscillator

13.56MHz Crystal oscillator output for 433.92MHz RF

12

DOUT

O

CMOS OUT Encoder data out

13~16 D0~D3

I

CMOS IN

Data input and transmission enable; active low

16

BTSGS

(HT6P237A only) I

CMOS IN

Bit time group select

0: Bit time group 1

1: Bit time group 2

This pin must be either high or low and not allowed to float

Approximate Internal Connections

CM OS IN /O UT

CM OS O UT

CM OS I N Pu ll -h ig h

Os ci ll at or