EFEDL7344CJ-02 datasheet(9/154 Pages) LAPIS

Part #	EFEDL7344CJ-02

Description	Sub-GHz(160MHz to 510MHz) band short range wireless transceiver IC

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Manufacturer	LAPIS [LAPIS Semiconductor Co., Ltd.]

Direct Link	http://www.lapis-semi.com/

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FEDL7344C/E/J-05

ML7344C/E/J

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●Miscellaneous pins

Pin name

Reset

state

I/O

Active

Level

function

5

XIN

N.C.(*2)

I

−

IA

−

P or N

−

26MHz crystal pin1

(Note) In case of TCXO, it must be open.

6

XOUT

TCXO(*2)

O

OA

IA

I

P or N 26MHz crystal pin 2 or TCXO input

8

RESETN

I

IS

L

Reset

L: Hardware reset enable (Forcing reset state)

H: Normal operation

10

EXT_CLK

I

IO

P or N

Digital I/O (*3)

Reset state: External RTC (32kHz) input. [ML7344E/J]

External PA control signal output. [ML7344C]

16

GPIO0

O/H

IO

or

OD(*1)

H or L

Digital GPIO (*4)

Reset state: interrupt indication signal output

17

GPIO1

O/L

IO

or

OD(*1)

H or L

Digital GPIO (*5)

Reset state: clock output

18

ANT_SW/

GPIO2

O/L

IO

or

OD(*1)

H or L

Digital GPIO (*6)

Reset state: Antenna diversity selection control signal

19

TRX_SW/

GPIO3

O/L

IO

or

OD(*1)

H or L

Digital GPIO (*7)

Reset state: TX –RX selection signal control

(Note)

*1 OD is open drain output.

*2 The following pin names are different depend on products.

Pin No.

ML7344C

ML7344T

5

XIN

N.C.

6

XOUT

TCXO

(Note)

*1 In case of using TCXO, set TCXO_EN=0b1. Please make sure only one of the register TCXO_EN,

XTAL_EN is set to 0b1.

*2 For ML7344Jy, the initial value of the register TCXO_EN is 0b1. In case of using ML7344JC, the register

XTAL_EN([CLK_SET2: B0 0x03(4)])=0b1 must be programmed first.

*3 For ML7344Cy, the initial value of the register XTAL_EN is 0b1. In case of using ML7344CT, the

register TCXO_EN([CLK_SET2: B0 0x03(6)])=0b1 must be programmed first.

*4 Please refer to [EXTCLK_CTR: B0 0x52] register.

*5 Please refer to [GPIO0_CTRL: B0 0x4E] register

*6 Please refer to [GPIO1_CTRL: B0 0x4F] register

*7 Please refer to [GPIO2_CTRL: B0 0x50] register

*8 Please refer to [GPIO3_CTRL: B0 0x51] register

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EFEDL7344CJ-02 Datasheet(PDF) 9 Page - LAPIS Semiconductor Co., Ltd.

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